DELTA DC 3740

DELTA DC 3740 is a high-molecular-weight wetting and dispersing additive of the ammonium polyacrylate class, with approximately 43% active ingredients, recommended for acrylic emulsion and acrylic water-reducible coatings. The polymeric dispersant is selected to improve pigment distribution and help maintain dispersion quality during formulation and storage. Adsorption onto particle surfaces and stabilization by the surrounding polymer layer reduce the tendency of dispersed particles to re-agglomerate.

Chemical type: Ammonium polyacrylate
Active ingredient content: Approximately 43%
Polymer class: High-molecular-weight dispersant
Ionic character: Anionic polycarboxylate chemistry
Recommended binder systems: Acrylic emulsion and acrylic water-reducible
Principal function: Wetting and dispersing pigments and fillers

WHAT IS DELTA DC 3740?

DELTA DC 3740 is an ammonium polyacrylate wetting and dispersing agent used to stabilize pigments and fillers in water-based acrylic coatings. Its approximately 43% active content must be considered when converting a calculated active dispersant dose into an as-supplied addition.

Within a pigment mill-base, the polymer helps maintain separation after mechanical dispersion. Better-controlled flocculation can support consistent color development, gloss and application viscosity, although the final result depends on the pigment, binder and rheology package.

The published recommendation covers acrylic emulsion and acrylic water-reducible systems. The broader manufacturer's dispersant family covers other binders and pigment classes, but that family coverage should not be treated as proof of suitability of this particular additive in every application.

Commercial polyacrylate dispersants differ in polymer architecture, neutralization, active concentration and compatibility. The chemical class alone therefore does not establish interchangeability. The detailed manufacturing recipe and complete molecular architecture of this commercial product are not disclosed in the available information.

The ammonium salt must be distinguished from sodium polyacrylate and from unneutralized polyacrylic acid. Neither a generic ammonium polyacrylate identity nor another supplier's product establishes the composition of this supplied additive.

COMMON PRODUCT & CHEMICAL NAMES OF DELTA DC 3740:

DELTA DC 3740
DELTA DC® 3740
Ammonium polyacrylate
Polyacrylic acid ammonium salt

The first two names identify the commercial additive from Delta Specialties. Ammonium polyacrylate and polyacrylic acid ammonium salt describe its declared chemical family rather than a complete formulation specification. DELTA DC 3750 is the sodium polyacrylate counterpart in the published selection guide and is a different commercial product.

PRODUCT AND CHEMICAL IDENTIFICATION OF DELTA DC 3740

Product name: DELTA DC 3740
Chemical type: Ammonium polyacrylate
Chemical class: Polymeric wetting and dispersing additive
Active ingredients: Approximately 43%
Recommended medium: Water-based acrylic coatings
Main functions: Pigment and filler dispersion, stabilization against re-flocculation

A product-specific CAS number, EC number, molecular formula and single molecular weight have not been established from the verified product information. Assigning a generic polymer CAS number to the complete commercial additive would be misleading. For the current composition and regulatory identification of the supplied grade, please contact Ataman Kimya.

CHEMICAL STRUCTURE AND MOLECULAR PROPERTIES OF DELTA DC 3740

Ammonium polyacrylate chemistry involves a carbon-chain polymer bearing carboxylate functionality with ammonium counterions. Carboxylate groups contribute affinity for appropriate pigment surfaces and interaction with the aqueous phase.

The manufacturer's general explanation for its high-molecular-weight polyacrylate dispersants describes anchoring and solvating parts of the polymer. It does not establish an exact graft arrangement, chain-length distribution or degree of neutralization for this individual additive. A molecular-weight range reported for an entire series must not be presented as its measured specification.

HOW DOES DELTA DC 3740 WORK AT THE MOLECULAR LEVEL?

Pigment-affinic parts of the polymer adsorb at the solid-liquid interface. The portions remaining in the liquid phase help oppose renewed particle contact. The manufacturer's family description emphasizes steric stabilization, while the ionic carboxylate chemistry also makes the aqueous environment relevant to performance.

Practical functions include:

Assisting the wetting and dispersion of solids
Reducing the tendency to re-flocculate
Supporting more consistent pigment distribution
Contributing to mill-base rheology control

Compatibility, dose, surface treatment, pH and electrolyte content affect the result. Mechanical energy is still needed to break pigment agglomerates. The dispersant does not dissolve pigment crystals or guarantee the elimination of settling.

PHYSICAL AND CHEMICAL PROPERTIES OF DELTA DC 3740

General technical characteristics:

Chemical character: Ammonium polyacrylate
Active ingredients: Approximately 43%
Molecular-weight classification: High-molecular-weight dispersant in the manufacturer's selection guide
Functional character: Wetting and dispersion control
Recommended systems: Acrylic emulsion and acrylic water-reducible coatings

Active concentration directly affects dosage and cost comparisons. A 1.00% addition of the supplied additive contributes approximately 0.43% active dispersant to the total formula. This is not a claim that the product is 43% chemically pure polymer with the balance fully identified.

Active content and non-volatile matter should not automatically be treated as identical analytical results. Their methods and definitions must be specified before comparing batches or substitutes.

Appearance, density, pH, viscosity, flash point and numerical water-solubility data have not been confirmed for this exact product. Values from the sodium counterpart must not be copied into its specification. For the current values and acceptance methods, please contact Ataman Kimya.

Viscosity should be compared at a defined temperature and test method. Density matters when converting mass to volume, while pH can influence the polymer's interactions with pigments and binders. These points define what to measure rather than supplying unverified values.

The information above is descriptive and does not replace agreed batch acceptance limits.

ACTIVE-MATERIAL DOSAGE CALCULATIONS FOR DELTA DC 3740

The manufacturer's general high-molecular-weight dispersant guide provides empirical starting calculations based on pigment properties. For inorganic pigments, the starting percentage of active dispersant on pigment is approximately 0.10 times the numerical oil absorption value, measured in grams of oil per 100 g pigment.

If an inorganic pigment has an oil absorption value of 20, the corresponding starting point is approximately 2 g active dispersant per 100 g pigment. At 43% active content, the as-supplied amount is 2 / 0.43, or approximately 4.65 g per 100 g pigment. This does not mean 4.65% of the complete paint.

Useful calculation:

As-supplied dispersant mass = pigment mass x active-on-pigment percentage / 100 / 0.43

For several pigments and fillers, calculate an initial contribution for each relevant component and evaluate the combined demand experimentally. Pigment surface treatment and competing additives can change the optimum.

The guide also gives DBP- and BET-based screening rules for carbon black and organic pigments. Those family-level rules do not demonstrate that this specific ammonium polyacrylate is an effective choice for every organic pigment or carbon black. Such applications require separate confirmation.

SECTORS AND INDUSTRIAL APPLICATIONS OF DELTA DC 3740

The verified focus is aqueous acrylic coating manufacture, where pigment dispersion affects processing and final film appearance.

Main areas of evaluation:

Acrylic emulsion paints
Acrylic water-reducible coatings
Pigment and filler mill-bases intended for these binders

DELTA DC 3740 IN ACRYLIC EMULSION PAINTS

Purpose: Produce a uniform pigment and filler distribution.
Function: Stabilize particles following mechanical dispersion.
Performance effect: Support reproducible viscosity, color and appearance when appropriately formulated.
Limitations: Latex compatibility, thickener interactions and storage stability must be checked.

DELTA DC 3740 IN ACRYLIC WATER-REDUCIBLE COATINGS

Purpose: Maintain dispersed solids in the selected acrylic vehicle.
Function: Provide polymeric wetting and dispersion control.
Performance effect: Help manage flocculation-related changes in flow and film appearance.
Limitations: Neutralization, solvent content and dilution sequence can affect compatibility.

DELTA DC 3740 IN PIGMENT AND FILLER MILL-BASES

Purpose: Prepare a grind that remains compatible after letdown.
Function: Stabilize the surfaces exposed during dispersion.
Performance effect: Support consistent grind quality and subsequent incorporation.
Limitations: A low-viscosity mill-base alone does not demonstrate long-term stability or final-film performance.

WHICH PROBLEMS CAN DELTA DC 3740 HELP SOLVE?

Re-flocculation after grinding
An appropriate polymer layer can reduce particle reassociation, provided the dosage and vehicle are suitable.

Variable color strength or rub-out differences
Improved dispersion can help control flocculation-related color changes. Pigment combinations and surface treatment remain important.

Unstable processing viscosity
A dosage ladder can identify a useful balance between dispersion and rheology. More additive is not necessarily better.

Poor sediment redispersibility
Dispersion control can contribute to a manageable sediment, but dense particles may still need an appropriate rheology or anti-settling package.

THINGS TO CONSIDER WHEN USING DELTA DC 3740

The most consequential calculation error is confusing active material on pigment with supplied product on total paint. Record both bases in trial sheets.

Confirm compatibility with the actual binder.
Include pigment and filler surface characteristics in dose selection.
Run low, middle and high dose trials around the calculated starting level.
Keep mixing energy, temperature and addition order consistent between comparisons.
Evaluate the mill-base and the complete letdown paint.
Measure stored samples as well as fresh samples.

A published preliminary compatibility screen uses a 90:10 blend of dispersant and main letdown vehicle, in that stated order, with additional bead agitation if needed. This is a concentrated screening blend, not a coating dosage. Clarity can be informative only where the vehicle itself permits a clear mixture, so an inherently opaque latex must not be judged by that criterion alone. This screen does not prove dispersion efficiency.

Provide splash protection and appropriate ventilation during high-speed mixing. Pigment handling and grinding introduce their own exposure and mechanical risks beyond those of the dispersant.

INITIAL FORMULATION APPROACHES FOR DELTA DC 3740

The following mass-balanced laboratory compositions illustrate how the published inorganic-pigment calculation can be translated into trials. They are starting screens, not validated production recipes. All percentages are by mass of the complete formula, with the dispersant used as supplied at a nominal 43% active content. The oil absorption values below are stated calculation assumptions and must be replaced by the actual pigment data.

EXAMPLE 1: DELTA DC 3740 IN AN ACRYLIC TITANIUM DIOXIDE COATING SCREEN

Components:

Water: 40.07%
Titanium dioxide, assumed oil absorption 20 g/100 g: 20.00%
DELTA DC 3740, as supplied: 0.93%
Acrylic emulsion binder, as supplied: 35.00%
Propylene glycol: 2.00%
Suitable coalescing agent: 1.00%
Defoamer: 0.30%
Nonionic wetting additive: 0.20%
Compatible thickener, as supplied: 0.50%
Total: 100.00%

The dispersant contributes approximately 0.40% active material to the complete mixture, equivalent to approximately 2.0% active material on titanium dioxide. The binder and thickener concentrations are supplied-product percentages, not dry-polymer percentages.

Evaluation criteria:

Grind quality and viscosity at a defined temperature
Gloss, hiding and film uniformity
Rub-out difference and pigment compatibility
Storage viscosity, sediment and redispersibility
Water resistance and film formation

Safety note: Use industrial laboratory controls and evaluate all component hazards. Preservation and shelf life have not been established for this trial.

EXAMPLE 2: DELTA DC 3740 IN AN EXTENDER-RICH ACRYLIC COATING SCREEN

Components:

Water: 35.10%
Calcium carbonate, assumed oil absorption 15 g/100 g: 40.00%
DELTA DC 3740, as supplied: 1.40%
Acrylic emulsion binder, as supplied: 20.00%
Propylene glycol: 2.00%
Suitable coalescing agent: 0.50%
Defoamer: 0.30%
Compatible thickener, as supplied: 0.70%
Total: 100.00%

The nominal calculation calls for 1.5% active dispersant on filler. The rounded supplied-product addition contributes approximately 0.602% active material to the complete formula, or approximately 1.51% on calcium carbonate. Change water to maintain 100% when adjusting the dispersant or rheology package.

Evaluation criteria:

Filler incorporation and grind viscosity
Low- and high-shear flow behavior
Settling and redispersibility
Film continuity, adhesion and water resistance
Compatibility after storage

Safety note: Control airborne mineral dust during charging. The laboratory formula needs preservation, application and durability validation before commercial use.

SIMILAR PRODUCTS AND ALTERNATIVES TO DELTA DC 3740

Compare alternatives at equivalent active levels first, then optimize the dose for each chemistry. Pigment affinity, binder compatibility, water resistance and sediment behavior matter together.

DELTA DC 3740 AND SODIUM POLYACRYLATE DISPERSANTS

Changing the counterion can affect formulation behavior even when the nominal active contents match. The sodium counterpart in the selection guide is an alternative for comparison, not an automatic weight-for-weight replacement.

DELTA DC 3740 AND POLYURETHANE-BASED DISPERSANTS

Other polymer architectures can give different pigment affinity and mill-base viscosity reduction. A lower grind viscosity may require reconsidering the anti-settling package rather than assuming superior overall performance.

DELTA DC 3740 AND LOW-MOLECULAR-WEIGHT DISPERSANTS

Suitable lower-molecular-weight products can be useful for mineral pigments and fillers. Their stabilization mechanism and optimum dose can differ, so a general molecular-weight label is insufficient for selection.

DELTA DC 3740 AND OTHER MODIFIED POLYMERIC DISPERSANTS

Specialized acrylic or other polymeric chemistries may be preferable for difficult organic pigments or carbon black. Confirm the application rather than extending a generic polyacrylate recommendation to all pigment types.

Select substitutes through controlled laboratory and application trials.

QUALITY CONTROL AND PURCHASING CRITERIA FOR DELTA DC 3740

Define the coating and pigment package before comparing prices. The same chemical description does not establish equal dispersion performance.

Information to clarify and review before purchasing:

Exact product designation and manufacturing source
Binder, pigments and fillers
Active content and its analytical definition
Agreed appearance, pH, viscosity and density methods
Relevant composition and regulatory documents
Batch traceability and acceptance certificate
Packaging, quantity and delivery conditions

A TDS describes technical characteristics, an SDS addresses safety and transport, and a COA reports batch acceptance information. These documents serve different purposes and should relate to the supplied product.

Concentration, packaging, order quantity, documentation and logistics affect purchasing cost. Compare cost at the effective trial dose rather than price per kilogram alone. For current availability and quotations, please contact Ataman Kimya.

STORAGE AND HANDLING OF DELTA DC 3740

Keep the dispersant in a closed, clearly identified container and avoid contamination during dispensing. Storage temperature limits, freeze-thaw tolerance, shelf life and remixing instructions have not been verified for this exact product. Please contact Ataman Kimya for the supplied grade's conditions rather than using values from a neighboring product.

After prolonged storage, examine appearance and reassess performance before release to production. Do not assume that restoring a uniform appearance alone restores all dispersion properties.

Contain spills and keep collected material out of drains. For the current UN assignment, transport class and packing requirements, please contact Ataman Kimya. Absence of an accessible classification is not evidence that the product is unregulated.

SAFETY INFORMATION OF DELTA DC 3740

A verified product-specific CLP classification and set of H statements are not available in the reviewed material. No hazard category, flash point or transport number is assigned here by inference from ammonium polyacrylate chemistry. Please contact Ataman Kimya for the current local safety and regulatory documentation, including the applicable REACH supply-chain information.

Use chemical splash eye protection, suitable gloves and working clothes, with ventilation appropriate to the operation. Avoid skin and eye contact and avoid inhaling spray mist generated during processing.

For eye contact, rinse promptly with clean water. Wash contaminated skin and obtain medical advice for persistent symptoms or significant exposure. In a fire, use the site response plan and extinguishing media appropriate to the surrounding materials, with trained responders assessing combustion exposure.

Prevent uncontrolled environmental release and dispose of residues and contaminated packaging through the applicable local waste procedures. The coating additive's industrial recommendation does not establish approval for cosmetic, food or pharmaceutical use.

SUPPLY OF DELTA DC 3740 FROM ATAMAN KIMYA

Ataman Kimya can be contacted for an inquiry concerning this ammonium polyacrylate dispersion-control additive. Confirm the offered product, documents, packaging and delivery conditions when obtaining a quotation.

Sharing the following information helps evaluate a suitable supply:

Coating type and acrylic binder
Pigments and fillers with relevant surface data
Current dose and target dispersion performance
Quantity, packaging and delivery location
Required technical and regulatory documents

FREQUENTLY ASKED QUESTIONS ABOUT DELTA DC 3740

What is DELTA DC 3740?
It is an ammonium polyacrylate wetting and dispersing additive recommended for water-based acrylic coatings.

What is its active ingredient content?
The published guide states approximately 43%.

Which binder systems are recommended?
Acrylic emulsion and acrylic water-reducible coatings.

Does the product have one verified CAS number?
A product-specific CAS identifier has not been established from the reviewed information. Please contact Ataman Kimya for the current identification.

Can a single molecular formula or molecular weight describe the supplied additive?
Not on the available evidence. It is a commercial polymeric additive rather than a defined small molecule.

Is active content the same as non-volatile matter?
Not necessarily. Confirm the analytical definition and test method.

How does the dispersant work?
It adsorbs onto pigment surfaces and helps resist re-flocculation through polymeric stabilization.

Does it replace grinding?
No. Mechanical dispersion remains necessary.

How is the supplied-product dose calculated?
Divide the required active dispersant mass by 0.43 at the nominal stated active concentration.

Is the dose based on pigment or total paint?
The cited starting calculation is active material on pigment. A complete-formula percentage must be calculated separately.

Can the generic carbon-black calculation prove suitability?
No. A series-level calculation does not confirm performance of the individual product with a particular carbon black.

Does good dispersion eliminate settling?
No. Particle density, rheology and the complete formulation still matter.

What does the 90:10 compatibility screen establish?
It is a preliminary concentrated compatibility check, not a dosage recommendation or proof of dispersion efficiency.

Can the sodium analogue replace it directly?
Only after evaluating the counterion, active level and finished-coating performance.

What are the verified storage limits and UN number?
These product-specific details have not been confirmed. Please contact Ataman Kimya.

What should accompany a purchase?
Current technical and safety information, a batch COA and relevant composition and regulatory documents.

DELTA DC 3740 - TECHNICAL SUMMARY

The ammonium polyacrylate additive is recommended for acrylic emulsion and acrylic water-reducible coatings. Its published active ingredient content is approximately 43%.

Polymer adsorption and stabilization help maintain dispersed pigment surfaces after grinding. Compatibility and pigment surface properties determine whether that mechanism produces the required coating result.

Active-on-pigment calculations must be converted to supplied-product mass. The two starting examples illustrate that conversion without establishing a universal dose or a validated commercial recipe.

Generic polymer identifiers and series-wide molecular-weight ranges do not define the complete supplied formulation. Sodium polyacrylate and other dispersants require application testing before substitution.

Batch quality, safe handling and storage depend on the actual product documentation. For current supply conditions and the technical information needed to evaluate the additive, contact Ataman Kimya.

DELTA DC 3740 can be sourced from ATAMAN KİMYA. For further information and supply inquiries about DELTA DC 3740, please contact ATAMAN KİMYA.