MATTING PVC

CAS Number: 9002-86-2 for the PVC polymer component; confirm the composition of any modified or blended commercial product.
EC Number: 618-338-8 is an EC/List identifier associated with PVC; it does not identify every constituent of a formulated matting additive.
Molecular Formula: (C2H3Cl)n for a PVC homopolymer; modified resins and additive blends may require a broader composition description.
Molecular Weight: Variable polymer distribution; no single molecular weight can be assigned to the unspecified Matting PVC grade.
Boiling Point: Not applicable as a discrete normal boiling point; PVC undergoes thermal degradation rather than clean distillation.
Melting Point: No single grade-independent melting point; softening, fusion and degradation behavior depend on the resin and formulation.
Viscosity: Not applicable to the dry powder as a liquid property; solution, plastisol and melt measurements require separate methods and conditions.
Density: Grade dependent; a documented high-molecular-weight PVC matting-resin example has material density of 1.40 g/cm3 and typical apparent bulk density of 0.610 g/mL, measured by different methods.

COMMON PRODUCT AND CHEMICAL NAMES

Matting PVC
PVC matting resin
Matting polyvinyl chloride resin
Polyvinyl chloride matting resin
PVC-based matting resin
Matting PVC homopolymer, where the grade is confirmed as a homopolymer
PVC matting extender resin, where extender functionality is documented
Polyvinyl chloride
PVC
The last two names identify the underlying polymer family rather than an equivalent matting grade. A generic PVC resin is not necessarily a substitute for a specialty material designed to control gloss.

WHAT IS MATTING PVC?

Matting PVC provides a formulation route to reducing the gloss of a PVC surface. Matting PVC is selected for its behavior in the intended process, rather than solely for the chemical identity of the base polymer.
One established technology uses a very high-molecular-weight PVC homopolymer that functions as a matting extender in plastisols and as a matting or anti-blocking additive in thermoplastic processing. Other commercial products may use a different resin architecture or an additional matting component. These technologies should not be combined into an assumed universal composition.
The Matting PVC designation therefore needs an accompanying grade specification. It should establish whether the product is a PVC homopolymer, modified resin or formulated blend, and whether its intended route is plastisol coating, calendering, extrusion, molding or another supported process.
Matting PVC is also distinct from a finished PVC floor mat. Here, matting refers to gloss reduction rather than a finished mat or mesh flooring product.

CAS NUMBER, EC NUMBER AND CHEMICAL IDENTIFICATION

CAS Number 9002-86-2 identifies polyvinyl chloride, including many resins with different molecular weights and particle structures. EC/List Number 618-338-8 is associated with the same polymer; it should not be described as proof of a particular matting performance.
For a homopolymer, the conventional formula is (C2H3Cl)n. The repeat-unit molar mass is approximately 62.50 g/mol, but the whole polymer has a distribution of chain lengths rather than that molecular weight.
If a commercial matting product contains an acrylic component, mineral particles or other modifiers, its SDS and composition information must identify the applicable constituents. A PVC-compatible additive is not necessarily made of PVC.
This distinction matters when comparing matting powders: acrylic matting particles, silica and PVC matting resins can all be relevant to PVC applications while having different chemistry, density, processing behavior and safety information.

CHEMICAL STRUCTURE AND THE ORIGIN OF MATTE APPEARANCE

The repeating PVC structure contains a carbon backbone bearing chlorine and hydrogen substituents. Its behavior during processing is influenced by chain size, particle morphology, plasticizer uptake and the other ingredients in the compound.
Matting is an optical effect arising from the surface produced by that material system. A sufficiently smooth surface directs a strong reflection toward the specular viewing direction, whereas controlled small-scale surface variations spread reflected light over a wider range of directions.
The useful objective is a consistent surface structure, not uncontrolled agglomeration or gross under-fusion. A rough defective coating may have low measured gloss while failing its strength, appearance or durability requirements.

Some matting technologies use crosslinked particles, but crosslinking should not be claimed for every Matting PVC grade. Likewise, high molecular weight alone does not establish a specific gel content, particle size or amount of insoluble material.
The finished surface is produced jointly by resin selection and processing. A grade that develops a matte free surface during fusion may behave differently when the surface is pressed against release paper, polished metal or a mold.

PHYSICAL AND CHEMICAL PROPERTIES

No unique physical specification exists for the name Matting PVC alone. The following block separates PVC chemical information from representative measurements for one documented high-molecular-weight PVC homopolymer matting/extender grade; these example values are not a specification guaranteed by Ataman Kimya for an unspecified product.
Chemical Family: Polyvinyl chloride for the PVC component; additional constituents are grade dependent.
Physical State: Solid powder for the documented resin example.
Appearance: White powder for that example; confirm color and contamination criteria for the supplied grade.
Odor: Odorless in the example grade's published SDS.
Repeat-Unit Formula: C2H3Cl for PVC homopolymer.
Repeat-Unit Molar Mass: Approximately 62.50 g/mol; not the molecular weight of an entire PVC chain.
Theoretical Chlorine Content: Approximately 56.7% by mass for ideal PVC homopolymer, calculated from the repeat unit; not an assay result for a modified or filled commercial powder.
Polymer Molecular Weight: Grade dependent; specify the relevant average and analytical method if a numerical value is required.
K Value: Grade and method dependent. The published information for the high-molecular-weight example states that its K value cannot be determined exactly, so a numerical value should not be inferred from its product designation.
Reduced or Solution Viscosity: Method dependent and distinct from dynamic viscosity. Values in mL/g do not describe plastisol or melt viscosity in mPa·s.
Representative Material Density: 1.40 g/cm3 in the example grade's SDS, using DIN 53479; equivalent to 1400 kg/m3.
Representative Apparent Bulk Density: Typical 0.610 g/mL, equivalent to 610 g/L or 610 kg/m3, using ISO 60 in the example technical information.
Representative Sieve Retention at 63 µm: No more than 5% retained on a 0.063 mm screen in the example technical information, using ISO 4610.
Representative Sieve Retention at 90 µm: No more than 1% retained on a 0.090 mm screen in the same example, using ISO 4610.
Representative Volatile Matter: No more than 0.3% in the example technical information, using ISO 1269; the published values are guidance data rather than a universal guarantee.
Median Particle Diameter: Not established by the sieve-retention figures. A D50 value requires an appropriate particle-size determination.
Moisture Content: Request a separate value or method where necessary; volatile matter must not automatically be reported as water content.
Water Solubility: Insoluble for the PVC matting-resin example.
Plasticizer Interaction: Grade and plasticizer dependent; dispersion, swelling, gelation and fusion are different stages and should not all be described as solubility.
Organic-Solvent Behavior: Grade dependent; some PVC materials dissolve or swell in suitable solvents, while an insoluble or modified fraction may behave differently. Confirm the actual grade before assigning solvent compatibility.
pH: Not applicable to the insoluble dry polymer as an intrinsic aqueous pH value.
Dry-Powder Dynamic Viscosity: Not applicable.
Plastisol Viscosity: Formulation dependent; report temperature, measuring system, shear conditions and aging time.
Melt Rheology: Compound and processing dependent; it cannot be derived directly from bulk density or sieve retention.
Boiling Point: Not applicable as an ordinary distillation property of the polymer.
Melting and Fusion Behavior: No single value assigned to the unspecified grade; a PVC compound's fusion behavior is not equivalent to a sharp melting point of a small molecule.
Glass Transition Temperature: Grade and plasticization dependent; no universal value is assigned to Matting PVC here.
Flash Point: Not applicable in the reviewed powder SDS; this does not establish the absence of dust-combustion hazards.
Dust Explosibility: The documented example's SDS reports dust-explosion class St 1. This classification is grade-specific and is not a substitute for the actual dust data needed to design equipment protection.
Residual Vinyl Chloride: Grade and specification dependent; request a verified limit or batch result where relevant. It is not determined by the volatile-matter figure alone.
Matting Efficiency: No universal numerical gloss value; measure the finished specimen using a defined formulation, process and measurement geometry.
Shelf Life: Grade, packaging, storage conditions and manufacturer dependent; follow the supplied product's expiry or retest instructions.
Apparent bulk density includes voids between powder particles and is therefore different from the density of the polymer material. Similarly, a sieve residue describes the fraction above a screen opening; it does not establish that all particles have that diameter or that the resin is a micronized coating powder.

HOW DOES MATTING PVC WORK DURING PROCESSING?

In a plastisol, the selected Matting PVC resin is first dispersed within a liquid formulation containing the relevant plasticizer and other ingredients. Heating then changes the interaction between PVC and the liquid phase, eventually producing the fused material.
A specialty Matting PVC grade can influence the surface structure that develops during this sequence. The response depends on the grade's particle behavior and the conditions under which the surface forms, rather than merely on how white or fine the original powder looks.
In thermoplastic processing, the Matting PVC resin is incorporated into a compound that is shaped by equipment such as a calender, extruder or injection-molding machine. The finished gloss reflects both the formulation and the surfaces and thermal history encountered during shaping.
For this reason, gloss is a property of the finished specimen under defined conditions. It is not an intrinsic number that can be assigned to an unopened bag of Matting PVC.

WHICH INDUSTRIES USE MATTING PVC?

Established uses for suitable PVC matting resins include coated textiles, direct-coated synthetic leather, flooring surface layers and rigid or flexible PVC films. Selected grades are also documented for calendered, extruded and injection-molded parts.
These applications share an interest in surface appearance, but their processing demands differ. A plastisol matting extender must be assessed within the paste formulation and fusion process, whereas a thermoplastic additive must be assessed within the relevant compound and shaping operation.
The following sections describe those supported application routes and their development considerations. They do not establish that every product sold under the broad Matting PVC name is suitable for every route.

MATTING PVC IN PLASTISOLS AND COATING PASTES

An established application uses a specialty high-molecular-weight PVC matting resin as part of the total PVC resin content in a plastisol. In a suitable system, the resin contributes surface matting together with extender behavior rather than functioning solely as an inert particulate filler.
This distinction matters because a matting extender can affect paste rheology as well as appearance. Published information for a documented grade describes viscosity reduction and reduced dilatancy, but these effects should be confirmed in the actual paste rather than generalized to every PVC matting powder.
Paste rheology determines how the material passes through coating equipment and distributes over a substrate. Final gloss is assessed after fusion, so an initially smooth-looking paste does not establish either the gloss or surface integrity of the finished layer.

Formulation work should therefore follow the same specimen from mixing through application and fusion. Compare paste viscosity after a defined aging period, coating uniformity, surface appearance and the mechanical integrity of the fused layer.
Particle dispersion also requires the correct processing approach. Some extender resins have documented restrictions on triple-roll milling, so adding a matting resin should not automatically trigger a recommendation for aggressive grinding. Follow the supplied grade's dispersion guidance and confirm that the operation preserves its intended function.

MATTING PVC IN COATED FABRICS AND TARPAULINS

Textile coatings and tarpaulins are documented applications for suitable matting PVC extender resins. The Matting PVC resin is used in the PVC coating formulation, with the aim of producing a lower-gloss exposed layer after the coating is fused.
The coating must still function on a flexible textile support. In development trials, assess the surface after bending and handling rather than evaluating only an undisturbed flat sample. A matte appearance is useful only if the coating also retains the adhesion and flexibility required by the product.
The distinction between the exposed face and the support-contacting face is important. A matting effect developed at a free surface cannot automatically be transferred to a face whose final appearance is imposed by a contacted carrier or tool.
For production control, compare samples made at a defined coating amount and fusion history. Variations in those conditions can change surface development even when the matting-resin concentration is unchanged.
Low gloss does not establish weather resistance, flame performance or abrasion resistance. Those characteristics belong to the complete coated fabric and require their own product-specific assessment.

MATTING PVC IN DIRECT-COATED SYNTHETIC LEATHER

Direct-applied leather-cloth topcoats are another documented use for suitable PVC matting resins. Here the surface layer contributes strongly to the visual character of the synthetic leather, making consistent gloss important alongside color and texture.
Matting can complement an existing decorative design, but it should be distinguished from embossing. Embossing produces a patterned physical surface, whereas the matting formulation influences the reflection from the surface developed between and across those features.
The final feel and mechanical softness are also separate from gloss. A lower-gloss surface may look softer, but that appearance is not proof of a lower hardness or a particular tactile response. If soft-touch performance is required, assess it directly with the complete plasticized formulation.
For this application, useful comparisons include gloss uniformity, flexing, rubbing and appearance after handling. Excessively pronounced particles or poor fusion can produce surface defects even if the average gloss reading is low.
Direct coating and transfer coating are not interchangeable application conditions. Published information for one high-molecular-weight PVC matting extender specifically excludes release-paper transfer as a route to obtaining its matting effect, because the contacted surface largely determines the final appearance.

MATTING PVC IN FLOORING TOPCOATS

Suitable PVC matting resins are documented for flooring topcoats where the exposed PVC layer is intended to have a controlled low-gloss appearance. The relevant processing condition is that the surface can develop appropriately during fusion.
The optical target must be considered alongside the floor's service requirements. Gloss, wear resistance, cleanability and slip behavior describe different properties; reducing gloss does not itself establish improved abrasion resistance or a particular slip classification.
Evaluation should include the appearance after representative rubbing, cleaning or wear. A finish can become locally shinier if service changes the surface texture, so the initial gloss alone may not describe the visual durability of the flooring layer.
Any later coating or surface treatment must also be considered. If a separate topcoat becomes the exposed face, its chemistry and texture may dominate the final gloss, making the effect of a matting resin in the underlying PVC less relevant.
Select Matting PVC for the actual layer architecture and production route. A matting resin suitable for a PVC plastisol surface should not be described automatically as suitable for every waterborne or UV-curable flooring topcoat.

MATTING PVC IN RIGID AND FLEXIBLE FILMS

Selected high-molecular-weight PVC matting grades are documented for use in rigid and flexible films. Depending on concentration and processing conditions, the intended function may be gloss reduction, anti-blocking or both.
Blocking describes unwanted adhesion between contacting film surfaces, for example in a wound roll or a stack. Some polymeric matting particles can reduce intimate surface contact, but a grade's anti-blocking performance must be tested separately from its gloss response.
Optical requirements also differ between opaque and transparent products. Gloss measures directional surface reflection, while haze and light transmission describe other aspects of optical appearance. A low-gloss film should not be assumed to retain the same transparency as its unmodified control.
For flexible film, evaluate Matting PVC with the intended plasticizer package and film-forming process. For rigid film, establish whether the additive changes the processing response or mechanical requirements of the unplasticized compound.
Film trials should record thickness, surface direction, backing and the measurement method. These details help distinguish a formulation effect from a difference caused by specimen preparation or measurement geometry.

MATTING PVC IN CALENDERED, EXTRUDED AND MOLDED PARTS

Thermoplastic applications for selected matting PVC grades include calendered, extruded and injection-molded parts. The Matting PVC resin is incorporated into the compound before shaping, providing a formulation variable for adjusting the final surface.
In extrusion, compare gloss across the produced part and along the production run. Local differences can arise from the combination of formulation, material flow, tooling and thermal history, so a small laboratory plaque may not establish the consistency achievable on the final line.
For calendered products, the response of Matting PVC and the surface-forming conditions must be assessed together. A documented ability to matte a thermoplastically processed sheet should not be confused with suitability for every contact-fusion coating process.
In injection molding, mold texture and process conditions can strongly influence appearance. Trials should therefore use tooling and conditions representative of the intended part, with mechanical and dimensional requirements evaluated alongside gloss.
Matting PVC is one tool for adjusting appearance rather than a substitute for process control. A uniform low-gloss part should retain acceptable fusion, impact behavior and surface integrity rather than rely on defects to create roughness.

WHEN THE PROCESS SURFACE LIMITS THE MATTING EFFECT

One of the most useful distinctions in published matting-resin guidance concerns whether the final surface remains open during fusion. For a documented high-molecular-weight PVC matting extender, this is a condition of the supported coating applications.
The same guidance identifies release-paper transfer, contact fusion on hot metal cylinders and rotational molding as unsuitable routes for obtaining that grade's matte surface. In those processes, the surface contacted by the PVC largely determines the final gloss.
This restriction should not be extended into a claim that no technology can matte those products. It establishes that the selected resin's documented mechanism is process dependent and that another resin, release surface or finishing route may be necessary.
Before increasing dosage to solve a gloss problem, identify which stage actually creates the exposed face. A formulation change may have little benefit if a later operation reproduces a different surface or covers the PVC with another coating.

GLOSS MEASUREMENT AND PERFORMANCE EVALUATION

Use a defined gloss target rather than the word matte alone. Report gloss units together with the measurement angle, instrument setup and specimen preparation so that results from different trials are comparable.
ISO 2813 describes coating gloss measurements at 20°, 60° and 85° and is intended for non-textured coatings on plane, opaque substrates. Strongly embossed, curved or transparent PVC products may require a suitable alternative method or a documented application-specific measurement procedure.
Instrument guidance commonly uses 60° as the initial comparison geometry, 20° for differentiating high-gloss specimens and 85° for differentiating very low-gloss specimens. Published guidance uses 60° values above 70 GU and below 10 GU, respectively, as indicators for considering those alternative geometries; these are measurement-selection guides, not universal product acceptance limits.
For a matte product, record more than the initial average. Check surface uniformity and appearance after the service exposures relevant to the application, such as flexing, rubbing or cleaning, without assuming that all tests are necessary for every product.
Haze, color and surface roughness can be useful additional measurements, but they should not be reported as equivalent to gloss. A material can meet one optical target while missing another.

FORMULATION GUIDANCE AND DOCUMENTED DOSAGE CONTEXT

The correct starting point is the technical guidance for the actual Matting PVC grade and the intended processing route. A generic dosage for all Matting PVC products would be misleading because a paste extender, thermoplastic additive and modified resin blend may be used on different bases.
For context, published information for one high-molecular-weight PVC matting extender describes 10–50% of the total PVC content in suitable paste applications, with total extender resin not exceeding 50% of the total PVC. This is a grade-specific resin-balance guideline, not 10–50% of the complete plastisol and not a recommendation for an unidentified product.
The same documented example describes less than 1 phr for anti-blocking and 3–10 phr for matting in selected thermoplastic formulations. These figures relate to that grade and use; they should not be transferred to other matting technologies or treated as validated recipes.
Define the denominator before comparing addition levels. A proportion of total PVC resin and an addition expressed in parts per hundred resin are different conventions, and the supplier's stated basis must be retained.
Establish the final level through trials that preserve a clear comparison: resin composition, plasticizer system, specimen thickness and processing history should be controlled. No universal fusion temperature, mixing speed, addition sequence or processing time is assigned here.

WHAT PROBLEMS CAN MATTING PVC HELP ADDRESS?

For a suitable formulation and process, Matting PVC provides a route to lowering excessive gloss and adjusting the visual character of a PVC surface. Matting PVC can be useful when a manufacturer wants to control fine-scale reflection through the compound rather than rely entirely on an external surface finish.
Certain documented grades also provide extender and anti-blocking functions. These may be useful alongside matting, but the strength of each effect must be evaluated independently in the intended system.
Matting PVC is not a universal correction for poor fusion, surface contamination or a mismatched release surface. Diagnosing the source of an appearance problem helps determine whether resin selection, process adjustment or a different finishing technology is the relevant solution.

SIMILAR PRODUCTS AND ALTERNATIVES

Silica Matting Agents: Inorganic particulate matting materials with their own dispersion, rheology and surface requirements. They are not chemically equivalent to PVC matting resins and should be compared in the intended layer and binder system.
Acrylic Polymeric Matting Agents: Selected acrylic additives use crosslinked particles to modify surface reflection in thermoplastics. Their suitability for PVC does not make them PVC homopolymers.
Wax-Based Surface Additives: These can influence gloss, slip and surface behavior in suitable systems. Assess the actual additive chemistry and its effect on adhesion or later finishing rather than treating every wax as a matting-resin replacement.

Embossing and Textured Tooling: These provide a mechanical route to surface structure. The useful texture scale and interaction with the resin must match the intended appearance.
Matte Release Surfaces and Separate Topcoats: These can be relevant when the contact surface or the outermost coating determines gloss. Select the approach according to the actual surface-forming stage.
Conventional PVC Resin: It may provide the main polymer matrix without the documented matting response of a specialty grade. A matching CAS number alone does not establish functional equivalence.

QUALITY CONTROL AND PURCHASING CRITERIA

Specify whether the requested Matting PVC is a homopolymer matting extender, another modified resin or a formulated additive. The purchase description should also identify the intended process and whether the target is matting, anti-blocking or both.
Useful incoming quality measures for Matting PVC include particle-size distribution, bulk density, volatile matter, visible contamination and the relevant molecular-size characterization. For an unusual high-molecular-weight grade, ask whether a solution measurement such as K value is valid before requiring a numerical result that the method cannot determine reliably.
Functional acceptance should use a defined reference formulation and process. Gloss results from samples with different thicknesses, plasticizer levels or surface histories may not be suitable for comparing lots.
The TDS describes the technical scope of Matting PVC, the SDS defines handling precautions and the batch COA records the supplied lot's release results. Ask for additional data on residual vinyl chloride, composition or regulated substances when the application requires them.
Discuss packaging, required quantity, traceability and documentation with Ataman Kimya. Neither the broad product name nor representative data from another documented grade establish the specification of the proposed supply.

STARTING FORMULATION APPROACHES FOR MATTING PVC

The following examples illustrate how Matting PVC can be assessed during formulation and process development. They are preliminary laboratory screening concepts, not validated commercial recipes, production instructions or finished formulations with established regulatory compliance.

Matting PVC is a product description rather than a single standardized chemical identity. These examples assume a PVC-based matting resin supplied for the processing route concerned. Confirm the grade's composition, particle characteristics, fusion behavior and technical data before testing. PVC matting resin, matting-grade polyvinyl chloride and polymeric PVC matting agent are used here as descriptive terms for this assumed material.

All quantities are expressed as phr: parts by mass per 100 parts of total PVC resin, including Matting PVC. The proposed levels are illustrative screening points, not universal supplier recommendations. Resin replacement keeps total PVC at 100 phr. Laboratory trials, performance testing, workplace exposure assessment and relevant regulatory checks are required for each application.

EXAMPLE 1: MATTING PVC LEVEL SCREENING IN AN OPEN-SURFACE PLASTISOL COATING

Objective: Evaluate how Matting PVC affects surface gloss, paste viscosity, coating uniformity and flexibility in a directly applied PVC coating, such as a synthetic leather topcoat.

Starting components:

Matting PVC suitable for plastisol use: approximately 0, 10, 20 and 30 phr

Standard paste PVC resin: respectively 100, 90, 80 and 70 phr

Compatible plasticizer, such as DOTP: approximately 60 phr, held constant

Calcium-zinc heat stabilizer package: held constant at a level approved for the selected base formulation

Pigments, fillers and additional extender resins: omitted during the initial comparison

Finished coating thickness: approximately 0.30 mm, held constant

Fusion conditions, substrate and conditioning period: held constant within the supplier-approved processing window

The Matting PVC fraction is varied by replacing paste PVC resin. Plasticizer content remains constant relative to total PVC, allowing the first comparison to focus on the matting resin. Subsequent optimization may require a separate plasticizer or rheology study.

Application approach:

Charge the plasticizer and compatible stabilizer package into a clean mixing vessel.
Add the paste PVC resin and Matting PVC gradually under controlled agitation, avoiding excessive heating and air incorporation.
Mix to uniformity, deaerate where appropriate, and measure viscosity at a fixed temperature and shear condition after 24 hours.
Apply each plastisol to the same substrate at a controlled thickness, leaving the coating surface exposed during fusion.
Fuse within the grade-specific temperature and residence-time window; record actual material temperature rather than relying only on the oven setting.
Cool and condition all samples identically, then compare gloss at the same measurement angle, surface roughness, visible specks, flexibility and coating adhesion.
Recheck paste viscosity after 7 days and assess whether storage changes affect application consistency.
Select the Matting PVC level that balances gloss reduction with acceptable viscosity and coating integrity.

Surface contact with release paper or a heated roll can strongly influence gloss. These open-surface results must therefore be revalidated for transfer coating or contact-fusion processes.

Control dust during Matting PVC charging, provide local exhaust ventilation and use eye protection and suitable gloves. Prevent overheating of PVC, which can release irritating decomposition products including hydrogen chloride.

EXAMPLE 2: MATTING PVC EVALUATION IN A FLEXIBLE CALENDERED PVC FILM

Objective: Determine the effect of Matting PVC on surface gloss, film appearance, blocking tendency and mechanical performance in a flexible PVC sheet or film.

Starting components:

Matting PVC suitable for thermoplastic processing: approximately 0, 3, 6 and 10 phr

Standard suspension PVC resin: respectively 100, 97, 94 and 90 phr

Compatible plasticizer, such as DOTP: approximately 40 phr, held constant

Heat stabilizer and lubricant system: held constant using an established flexible PVC base formulation

Pigments and mineral fillers: initially omitted, or held constant if essential to the intended product

Finished film thickness: approximately 0.50 mm, held constant

Mixing cycle, roll finish, roll temperatures, line speed and cooling conditions: held constant

The selected Matting PVC levels are screening points for a thermoplastic-compatible grade. They must not be transferred automatically to a paste-only product or another matting additive.

Application approach:

Prepare the same stabilized flexible PVC base for each trial, replacing the stated fraction of standard resin with Matting PVC.
Introduce the plasticizer and other ingredients according to the established mixing sequence of the base formulation.
Prepare a uniform compound while controlling temperature, mixing time and powder dispersion.
Calender under matched operating conditions using the same roll surface and film thickness.
Cool and condition the films identically before testing.
Measure gloss at a fixed angle and compare surface uniformity, haze where relevant, tensile properties, elongation and flexibility.
Assess blocking using a defined combination of contact pressure, temperature and storage time.
Inspect for unincorporated particles or surface defects, and distinguish intentional matting from inadequate fusion.
Identify the lowest Matting PVC loading that provides the intended appearance without unacceptable losses in film quality.

Embossing, roll texture and pigment changes should be assessed separately after the initial resin-level comparison. A lower gloss reading alone does not establish improved abrasion resistance or outdoor durability.

Use dust extraction during powder handling, observe equipment guarding procedures and provide protection against hot rolls and molten PVC. Review the safety data sheets for Matting PVC, the plasticizer and all stabilizer components.

EXAMPLE 3: MATTING PVC DOSAGE SCREENING IN A RIGID PVC EXTRUDED PROFILE

Objective: Examine whether Matting PVC can reduce profile surface gloss while maintaining stable extrusion, adequate fusion, impact performance and dimensional consistency.

Starting components:

Matting PVC approved for rigid PVC extrusion: approximately 0, 3, 6 and 10 phr

Standard rigid-grade suspension PVC resin: respectively 100, 97, 94 and 90 phr

Acrylic impact modifier: approximately 5 phr, held constant as an illustrative level

Acrylic processing aid: approximately 1 phr, held constant as an illustrative level

Calcium-zinc stabilizer, internal/external lubricants and any filler or pigment: held constant using an established rigid PVC base formulation

Added plasticizer: 0 phr

Extruder configuration, die finish, output, calibration and cooling conditions: held constant

The impact modifier and processing aid levels must be checked against the existing base compound and supplier guidance. Matting PVC remains part of the 100 phr PVC resin total; it is not counted as an additional filler.

Application approach:

Prepare matched dry blends with identical ingredient lots and mixing history.
Distribute Matting PVC uniformly through the PVC resin blend before completing the established additive incorporation sequence.
Process the control and trial blends using the same initial extrusion settings.
Record actual melt temperature, torque, head pressure, output and signs of instability.
Collect samples only after steady operation has been established, and condition them consistently.
Compare gloss on the same profile face, surface defects, color, dimensions and impact behavior.
Assess fusion and thermal stability using methods appropriate to the selected rigid PVC compound.
Repeat the most promising Matting PVC level to check reproducibility before optimizing the processing window.

Do not compensate for a poorly fused or unstable compound solely by increasing processing temperature. Any temperature or lubricant adjustment should be investigated as a separate variable, with thermal stability and mechanical properties rechecked.

Control powder exposure and protect operators from hot equipment. Maintain effective ventilation during extrusion and stop trials if discoloration, smoke or signs of PVC degradation appear. Final product suitability depends on the complete formulation and intended application, not on Matting PVC alone.

REGULATED APPLICATIONS AND COMMERCIAL ACCURACY

A matte PVC surface is not automatically suitable for food contact, medical use, children's articles or other regulated applications. Suitability depends on the exact resin, additives, residual substances, finished formulation and intended exposure.
The PVC polymer identity does not establish the composition of a plasticized article. Likewise, selecting a matting resin does not determine whether the complete compound satisfies a plasticizer restriction or another finished-product requirement.
No food-grade, pharmaceutical-grade, cosmetic-grade or medical-grade claim is established by the generic name Matting PVC. Obtain the declarations and test evidence required for the actual product and market.
Do not infer current stock, origin, certifications or guaranteed performance from this technical description. Those details require confirmation for the material offered.

FIRST AID

Inhalation: Move a person exposed to Matting PVC dust to fresh air. Seek medical advice if respiratory symptoms develop or persist; suspected exposure to decomposition fumes requires prompt assessment appropriate to the incident.
Skin Contact: Wash Matting PVC powder from the skin with soap and water. Remove contaminated clothing and seek advice if irritation persists.
Eye Contact: Do not rub eyes contaminated with Matting PVC. Rinse with clean water, remove contact lenses if easily possible and obtain medical attention if irritation persists.
Ingestion: Rinse the mouth after accidental ingestion of Matting PVC and obtain medical advice if symptoms occur or the exposure is significant. Do not induce vomiting or give anything by mouth to an unconscious person.
Hot Material Contact: Cool a burn caused by hot Matting PVC compound with cool running water and obtain medical assistance. Do not forcibly remove polymer adhering to the skin.
Note to Physicians: Provide the actual Matting PVC SDS and identify whether the exposure involved powder, hot compound or decomposition fumes. Treatment is directed by the exposure and symptoms.

HANDLING AND STORAGE

Handling: Minimize Matting PVC dust during bag opening, weighing and charging. Use procedures that preserve cleanliness and prevent powder from accumulating on work surfaces.

Engineering Controls: Provide suitable extraction and enclosed transfer where needed for Matting PVC. Assess powder-handling equipment against the actual grade's dust properties and processing conditions.

Personal Protection: Wear eye protection, suitable gloves and work clothing when handling Matting PVC powder. Select additional protection for the other ingredients and operations involved.

Respiratory Protection: Where engineering controls cannot adequately control Matting PVC dust, use respiratory protection selected through the workplace assessment and current regional SDS. A particulate respirator does not by itself establish protection against thermal-decomposition gases.

Dust and Ignition Control: A documented PVC matting-resin grade can form combustible dust clouds and is classified St 1 for dust explosibility. Apply appropriate ignition control, housekeeping and equipment protection to the supplied Matting PVC according to its own data; do not assume that the polymer name establishes noncombustible dust.

Storage: Keep Matting PVC in closed, intact packaging in a dry, cool, well-ventilated location, away from direct or indirect heat. Follow the actual grade's stacking, storage-temperature and shelf-life instructions.

Material Compatibility: Keep Matting PVC away from strong oxidizing agents and other incompatibilities identified in its SDS. Use clean equipment that does not introduce contamination into the resin or compound.

Thermal Processing: Process Matting PVC within a validated formulation and thermal history. Overheating PVC can release hydrogen chloride and other hazardous decomposition products; use suitable process ventilation and shutdown procedures.

Spill Procedures: Recover spilled Matting PVC with equipment and methods that limit airborne dust. Avoid compressed-air cleaning and uncontrolled dry sweeping; do not return contaminated powder to the original supply.

Environmental Precautions: Prevent Matting PVC powder from entering drains, soil or waterways. Insolubility in water does not make uncontrolled particulate release acceptable.

Fire Response: Follow the Matting PVC SDS and site emergency plan. Use extinguishing methods that avoid dispersing powder, and ensure firefighters are protected from smoke and decomposition gases with appropriate breathing apparatus.

Waste Disposal: Collect Matting PVC waste and contaminated packaging for suitable recovery or authorized disposal. The waste route must account for the complete formulation and contaminants rather than the base-polymer name alone.

SAFETY AND TRANSPORT INFORMATION

The reviewed November 2025 SDS for a documented high-molecular-weight PVC matting/extender grade does not classify the substance as hazardous under its stated CLP framework. It nevertheless identifies combustible dust concentrations and dust irritation as handling concerns.
That grade is described as not regulated as dangerous goods under the listed road, rail, inland-waterway, air and sea transport rules. This is useful reference information for a resin-type product, but it does not establish the classification of every modified or blended Matting PVC formulation.
UN Number: Not assigned for the reviewed non-dangerous-goods resin example; verify the supplied grade.
Proper Shipping Name: Not applicable under that example's classification.
Transport Hazard Class: Not assigned under that example's classification.
Packing Group: Not assigned under that example's classification.
Use the current regional SDS for the exact Matting PVC grade supplied. A product containing additional hazardous ingredients or a different physical form may require different handling, labeling or transport arrangements.

FREQUENTLY ASKED QUESTIONS ABOUT MATTING PVC

What is Matting PVC?
Matting PVC is a functional description for specialty PVC resins or PVC-based materials used to create a controlled low-gloss surface.

Does the name Matting PVC identify one exact commercial grade?
No; the composition, particle structure and intended process must be established from the supplied grade's documentation.

What is the CAS number for Matting PVC?
PVC is identified by CAS Number 9002-86-2; a formulated matting product may have additional constituents.

What is the molecular weight of Matting PVC?
There is no single value for an unspecified polymer grade; 62.50 g/mol describes the PVC repeat unit rather than the whole chain.

Is every PVC matting resin crosslinked?
No; the actual resin architecture must be verified, and crosslinking should not be assumed from the product name.

Is Matting PVC necessarily a micronized powder?
No; the particle-size method and actual distribution must be checked, and sieve data alone do not establish a micronized grade.

What are the principal supported applications of Matting PVC?
Suitable grades are documented for plastisol coatings, coated textiles, direct-coated synthetic leather, flooring topcoats, films and selected thermoplastic parts.

Can the same Matting PVC grade matte both direct and transfer coatings?
Do not assume so; some documented matting extenders require an open surface during fusion and are unsuitable for obtaining matte surfaces by release-paper transfer.

Does low gloss mean improved slip resistance?
No; gloss and slip behavior are different properties and require separate assessment.

Does matting with Matting PVC automatically improve anti-blocking?
No; some grades provide both functions, but each response must be tested at the intended concentration and process conditions.

Which gloss angle should be reported for specimens made with Matting PVC?
Report the angle required by the chosen method; common coating geometries are 20°, 60° and 85°, with specimen suitability also considered.

Can gloss and haze be used interchangeably?
No; they describe different optical effects.

What dosage of Matting PVC should be used?
Use the actual grade's guidance and a verified concentration basis; published dosage ranges for a particular resin are not universal Matting PVC recommendations.

Can bulk density be used as polymer density?
No; bulk density includes the voids between particles, whereas material density describes the polymer itself.

Does a high Matting PVC product number establish a K value?
No; some high-molecular-weight matting grades do not have an exactly determinable K value under the stated method.

What are the main handling concerns for Matting PVC?
Control powder exposure and the grade-specific dust hazard, and prevent overheating that can generate hazardous PVC decomposition fumes.

Is Matting PVC automatically food-contact or medical grade?
No; the exact formulation and intended use require their own documentation and compliance assessment.

What should be requested before purchasing Matting PVC?
Obtain the grade identity, current TDS and regional SDS, batch COA, applicable composition data and evidence relevant to the intended process and gloss target.

TECHNICAL SUMMARY

Matting PVC describes a specialty surface-control function within the PVC materials family rather than a single standardized chemical grade. For a PVC homopolymer, the base identity is CAS Number 9002-86-2 with repeat-unit formula (C2H3Cl)n, but the commercial resin architecture and any additional modifiers must be established separately.
The useful effect of Matting PVC arises from the surface developed during processing. A documented high-molecular-weight PVC matting extender can provide a low-gloss finish in suitable plastisols and thermoplastic compounds, with extender or anti-blocking behavior in specified applications. These functions depend on formulation and process, so the appearance of the raw powder does not establish the gloss of the finished article.

Supported applications of Matting PVC include coated textiles, direct-coated synthetic-leather surfaces, flooring topcoats, films and selected calendered, extruded or molded parts. An especially important limitation is the surface-forming route: some grades require an open surface during fusion, while release paper, hot contact surfaces or molds can dominate the final reflection. Identifying that stage helps avoid increasing dosage to solve a problem controlled by another part of the process.
Physical data must remain attached to the grade and test method. One documented example has material density of 1.40 g/cm3, typical bulk density of 0.610 g/mL and published sieve-retention guidance of no more than 5% at 63 µm and 1% at 90 µm. Those figures illustrate meaningful resin characterization, but they do not define every product sold as Matting PVC or establish a particle median, moisture assay or guaranteed matting efficiency.

Selection of Matting PVC should connect the incoming resin specification with a repeatable finished-specimen test. Define the resin balance, plasticizer system, process, thickness and gloss-measurement geometry, then evaluate the properties relevant to the application, including surface integrity and any required flexibility, blocking or wear response. Gloss, transparency, tactile feel and mechanical softness should be treated as separate performance targets.
Safe handling of Matting PVC requires powder-exposure control, appropriate attention to the actual dust-explosion characteristics and prevention of excessive thermal exposure. The reviewed resin example is not regulated as dangerous goods, but its SDS still identifies combustible dust concerns. Current product documentation, batch traceability and application-specific declarations are therefore essential parts of selecting the appropriate Matting PVC grade.

CONTACT ATAMAN KIMYA

Contact Ataman Kimya to discuss Matting PVC for your coating, film, synthetic-leather, flooring or thermoplastic-compounding application. The intended processing route, target gloss, resin type and required technical documentation can be reviewed to help define a suitable grade.
Packaging options, required quantities, current availability and a quotation can also be discussed for the proposed supply. Any performance specification or regulated-use requirement should be confirmed for the exact Matting PVC grade being offered.
Ataman Chemicals
Phone: +90 216 577 10 10
Email: info@atamankimya.com