KELTAN 6950C

Keltan 6950C is a high-Mooney ethylene-propylene-diene rubber based on ethylene, propylene and ethylidene norbornene chemistry.
Keltan 6950C combines relatively low ethylene content with a high ENB level and a controlled molecular architecture designed for demanding rubber-processing applications.
Keltan 6950C is particularly suitable for automotive sponge profiles, dense sealing profiles, windshield-wiper compounds and other EPDM applications requiring rapid curing, low-temperature flexibility and strong weather resistance.

CAS Number: 25038-36-2
Molecular Formula: (C2H4)x(C3H6)y(C9H12)z
Molecular Weight: Not defined
EINECS Number: 607-505-0

Synonyms: Keltan 6950C, Keltan® 6950C, EPDM Rubber, Ethylene Propylene Diene Rubber, Ethylene Propylene Diene Monomer Rubber, Ethylene-Propylene-Diene Terpolymer, Ethylene/Propylene/Diene Terpolymer, Ethylene-Propylene-ENB Terpolymer, Ethylene Propylene Ethylidene Norbornene Rubber, Ethylene-Propylene-5-Ethylidene-2-Norbornene Copolymer, EPM/ENB Terpolymer, EPDM Elastomer, EPDM Synthetic Rubber.

Keltan 6950C is a polymeric material and therefore does not have one discrete molecular formula or one fixed molecular weight.
Keltan 6950C contains polymer chains with a molecular-weight distribution, and its composition is more meaningfully defined through ethylene content, diene content and rheological characteristics.
For this reason, Mooney viscosity, ENB level, ethylene content and molecular architecture are more useful purchasing parameters than a nominal polymer molecular weight.

Keltan 6950C belongs to the EPDM family of synthetic elastomers.
Its polymer backbone is composed primarily of saturated ethylene and propylene sequences, while a controlled quantity of ethylidene norbornene provides unsaturation outside the main polymer backbone.
Keltan 6950C structure gives the material the weathering resistance characteristic of EPDM while retaining sites that allow efficient sulfur vulcanization.

Keltan 6950C relatively low ethylene content of approximately 44 wt.% is an important characteristic of Keltan 6950C.
Lower ethylene content generally reduces the tendency toward highly crystalline ethylene-rich domains and supports a more amorphous rubber structure.
Keltan 6950C contributes to good low-temperature flexibility and makes the grade particularly attractive for dynamic sealing and profile applications.

Keltan 6950C content of approximately 9.0 wt.% is comparatively high for a commercial EPDM grade.
Higher ENB content provides a greater concentration of cure sites and supports rapid sulfur vulcanization when an appropriate accelerator system is used.
This high cure response is one of the defining reasons Keltan 6950C is selected for high-productivity extrusion and continuous-vulcanization processes.

Keltan 6950C also uses a controlled molecular-weight architecture identified as CLCB in the grade specification.
Keltan 6950C molecular architecture contributes to the balance between compound processability, melt strength and finished rubber properties.
The combination of high Mooney viscosity and controlled branching is particularly useful when an uncured compound must maintain dimensional stability after extrusion.

The ethylene and propylene units form the principal saturated polymer backbone.
Keltan 6950C saturated backbone gives EPDM excellent resistance to ozone, oxygen, sunlight and atmospheric aging compared with elastomers that contain substantial unsaturation directly in their main chain.
Keltan 6950C-derived unsaturation remains available mainly for crosslinking rather than becoming a major weak point in the polymer backbone.

Keltan 6950C structural arrangement explains the strong outdoor durability of Keltan 6950C.
Ozone attack that rapidly produces surface cracking in highly unsaturated rubbers is substantially reduced in properly formulated EPDM compounds.
Keltan 6950C suitable antioxidants, fillers and other compounding ingredients can further extend service performance.

Keltan 6950C has a nominal Mooney viscosity of approximately 65 MU measured as ML (1+4) at 125 °C.
This places the material in the high-Mooney section of the Keltan EPDM portfolio rather than among low-viscosity or heavily oil-extended grades.
The high polymer viscosity supports good green strength while compound viscosity can subsequently be adjusted with plasticizers, fillers and processing aids.

Keltan 6950C an uncured profile must retain the geometry produced at the extrusion die while it travels toward the vulcanization section.
A polymer with insufficient melt strength can sag, collapse or lose dimensional accuracy before crosslinking develops.

The 44 wt.% ethylene level distinguishes Keltan 6950C from the related Keltan 6950 regional grade, which carries approximately 48 wt.% ethylene.
Both grades have approximately 9.0 wt.% ENB and nominal Mooney viscosity around 65 MU.
The lower ethylene content of 6950C shifts the balance toward greater amorphous character and low-temperature flexibility.

Keltan 6950C is not specified as an oil-extended grade.
This gives compounders direct control over the type and level of process oil introduced during mixing.
The selection of oil can therefore be matched to hardness, extrusion behavior, low-temperature properties and the other requirements of the final rubber compound.

This distinction is important when comparing Keltan 6950C with grades such as Keltan 6951C.
Keltan 6951C has closely related polymer composition but contains approximately 15 phr oil.
Direct replacement between an oil-extended and non-oil-extended grade would therefore change compound formulation and should not be performed on a one-to-one weight basis.

Keltan 6950C low polymer density is characteristic of EPDM and can contribute to relatively lightweight rubber products compared with several denser specialty elastomers.
Finished compound density will be substantially influenced by carbon black, mineral fillers, oils and other additives.

Keltan 6950C can be compounded with carbon black to obtain reinforcement, ultraviolet protection and controlled mechanical properties.
Carbon-black type and loading affect tensile strength, modulus, hardness, extrusion behavior and electrical properties.
Highly reinforced compounds therefore require a different filler strategy from soft sponge or low-hardness sealing formulations.

Keltan 6950C, clay, silica and other inorganic materials may be incorporated to modify cost, hardness, surface properties and processing behavior.
Filler selection should consider compatibility, moisture content and its influence on the selected cure system.

Keltan 6950C paraffinic process oils are widely compatible with EPDM.
Oil reduces compound viscosity, increases softness and facilitates incorporation of high filler levels.
The oil type and dosage must be optimized because excessive plasticization can reduce mechanical strength or compression resistance.

Keltan 6950C can be vulcanized using sulfur-based cure systems.
Keltan 6950C concentration provides efficient sites for sulfur crosslinking and supports comparatively rapid cure response.
Accelerator type and sulfur level determine scorch safety, cure rate and the final crosslink structure.

Keltan 6950C curing can also be considered for EPDM formulations where improved thermal aging or compression-set behavior is required.
Peroxide systems generate carbon-carbon crosslinks rather than the sulfur-containing crosslinks typical of conventional sulfur curing.
Keltan 6950C choice between sulfur and peroxide should be made according to processing conditions and final service requirements.

Keltan 6950C coagents may be used in peroxide-cured EPDM compounds.
These multifunctional ingredients can increase crosslink efficiency and improve modulus or compression properties.
Their influence on elongation, hardness and processing safety must be evaluated within the complete compound.

Foamed or sponge Keltan 6950C is a particularly important field for Keltan 6950C.
The polymer must develop enough green strength to maintain cellular structure while curing quickly enough to stabilize the foam during continuous production.
Its high ENB content and rheological characteristics make the grade especially appropriate for automotive sponge-profile formulations.

Keltan 6950C blowing agents can be used to generate the cellular structure.
Keltan 6950C decomposition profile of the blowing system must be coordinated with the vulcanization rate so that gas evolution and network formation occur in the correct sequence.
If blowing occurs too early or cure occurs too quickly, cell structure and final density can become inconsistent.

Keltan 6950C extrusion processing is therefore strongly dependent on rheological balance.
Keltan 6950C must flow through the screw and die without excessive pressure while remaining dimensionally stable after leaving the die.
Keltan 6950C provides a useful high-Mooney polymer base for achieving this compromise.

Continuous vulcanization methods can include hot air, microwave, salt-bath or combinations of heating technologies depending on the profile and production line.
Rapid-curing high-ENB EPDM grades are especially advantageous when production speed is economically important.
The cure package must nevertheless provide sufficient scorch safety during mixing and extrusion.

Physical Form: Solid rubber
Appearance: White to off-white bales
Chemical Family: Ethylene-Propylene-Diene Rubber
Polymer Type: EPDM
Diene Type: Ethylidene Norbornene (ENB)
Mooney Viscosity: 65 MU
Mooney Test Condition: ML (1+4) at 125 °C
Ethylene Content: 44 wt.%
ENB Content: 9.0 wt.%
Molecular Weight Distribution: CLCB
Oil Content: None specified / non-oil-extended grade
Density: 0.86 g/cm3
Water Solubility: Insoluble
Ionic Character: Nonionic
Physical State: Solid
Odor: Slight characteristic odor
Recommended Storage Temperature: below 30 °C
Self-Ignition Temperature: greater than 370 °C
Decomposition Temperature: greater than 300 °C

Keltan 6950C Mooney viscosity value is measured under standardized conditions and should not be interpreted as the viscosity of the final rubber compound.
Fillers, oil, curatives and mixing history can alter compound viscosity substantially.
Mooney viscosity is most useful when comparing base-polymer consistency and processing behavior between Keltan 6950C grades.

Keltan 6950C value is especially significant during cure-system design.
Increasing diene content generally increases the number of sites available for sulfur crosslinking and can shorten the time required to achieve useful network development.
The same characteristic requires appropriate scorch control to prevent premature vulcanization during mixing or extrusion.

Keltan 6950C low ethylene content also influences mechanical behavior before and after cure.
Highly ethylene-rich EPDM grades can show greater crystallinity and green strength, while lower-ethylene grades remain more amorphous.
Keltan 6950C therefore combines its high molecular viscosity with a relatively flexible polymer composition.

Keltan 6950C is important in vehicle sealing systems.
Door seals, trunk seals and glass-run channels must remain flexible during winter conditions rather than becoming excessively stiff.
Keltan 6950C relatively low ethylene content of Keltan 6950C supports this type of cold-temperature flexibility.

Keltan 6950C performance is another major consideration for sealing compounds.
A weatherstrip must recover after being compressed repeatedly between vehicle body panels.
Polymer choice, cure density, filler system and plasticization all influence the amount of permanent deformation that remains after prolonged compression.

Keltan 6950C also performs well in contact with hot water and steam compared with many hydrocarbon rubbers.
Keltan 6950C behavior extends the broader EPDM family into hoses, seals, gaskets and industrial components exposed to aqueous environments.
The suitability of Keltan 6950C for a particular fluid-service application should still be confirmed in the complete compound rather than assumed from polymer family alone.

Keltan 6950C has limited resistance to petroleum oils and hydrocarbon fuels.
Keltan 6950C non-polar saturated structure swells in many mineral oils, gasoline and hydrocarbon solvents.
Applications involving continuous fuel or lubricant contact may therefore require NBR, HNBR, FKM or another oil-resistant elastomer instead.

Keltan 6950C limitation should be considered carefully in automotive engineering.
Keltan 6950C is highly suitable for many exterior seals and weathering applications but should not be treated as a universal under-hood elastomer for every fluid.
Coolant, water and weather exposure are very different service environments from gasoline or engine oil immersion.

Uses Of Keltan 6950C: 
Keltan 6950C is primarily used in automotive and industrial EPDM compounds requiring rapid curing, strong extrusion behavior, low-temperature flexibility and excellent resistance to outdoor aging.
Keltan 6950C grade-specific strengths are particularly relevant to sponge profiles, dense sealing profiles and windshield-wiper applications.
Keltan 6950C and high Mooney viscosity provides a distinctive balance for these applications.

Keltan 6950C automotive weatherstripping represents one of the most important application areas.
Door seals, trunk seals and window-related profiles must remain elastic while tolerating sunlight, ozone, rain and repeated temperature cycling.
Keltan 6950C is widely selected because its saturated polymer backbone provides excellent durability under these atmospheric conditions.

Keltan 6950C sponge weatherstrips are especially compatible with the characteristics of Keltan 6950C.
Foamed sections reduce weight and provide soft compressibility while a dense skin can improve surface durability.
Keltan 6950C level supports rapid vulcanization needed to stabilize the cellular profile during continuous production.

Keltan 6950C profiles must compress easily when the door closes and recover after the load is removed.
A carefully formulated Keltan 6950C compound can provide the elastic recovery required for repeated opening and closing cycles.
Compression set, hardness and sealing force are optimized through the cure system, filler level and oil content.

Trunk and tailgate seals operate under similar conditions.
Keltan 6950C must protect the passenger or cargo compartment against water and dust while remaining flexible over many years.
Ozone and ultraviolet resistance are therefore more important than resistance to hydrocarbon fuel.

Keltan 6950C automotive window seals are another suitable EPDM application.
Rubber surrounding vehicle glass experiences direct sunlight, moisture, temperature variation and repeated mechanical movement.
Keltan 6950C can be compounded for durable weathering performance together with an appropriate surface finish.

Keltan 6950C blades represent a specifically relevant application for Keltan 6950C.
A wiper compound requires flexibility, controlled friction, resistance to ozone and good retention of edge geometry during repeated movement across glass.
The grade's low ethylene content and high cure response make it well suited to this demanding dynamic rubber application.

Wiper performance also depends on surface treatment and compound design.
Carbon black, fillers, waxes, processing oils and friction-modifying treatments can influence wiping quality and noise.
Keltan 6950C serves as the elastomeric base while the complete compound determines final blade behavior.

Keltan 6950C dense automotive profiles are another important application.
These sections can be used where a solid rubber component rather than a cellular sponge is required.
High polymer viscosity helps maintain dimensional control during extrusion before vulcanization.

Coextruded sealing systems can combine dense and sponge EPDM sections.
Keltan 6950C a dense carrier region can provide mechanical strength while a cellular sealing bulb supplies compressibility.
Keltan 6950C can be particularly valuable in the sponge or flexible regions depending on the compound architecture.

Keltan 6950C profiles may also be coextruded with thermoplastic or metal carriers.
Rubber adhesion and dimensional stability must then be coordinated with the carrier geometry and curing process.
Compound rheology is therefore particularly important in these multi-material profile systems.

Keltan 6950C channels may use flocked or coated EPDM profiles.
The rubber provides weather resistance and elasticity, while a surface layer reduces friction against moving glass.
Keltan 6950C can provide the EPDM base for systems where the selected compound and coating technology are compatible.

Keltan 6950C applications are not limited to passenger cars.
Commercial vehicles, buses, trucks and specialty vehicles also require weather-resistant extruded rubber profiles.
The long outdoor service life of EPDM makes it suitable for these transportation applications.

Keltan 6950C automotive hoses form part of the broader EPDM application field.
Coolant and radiator hoses particularly benefit from EPDM's resistance to heat, water and glycol-based coolant formulations.
A grade must nevertheless be selected according to hose reinforcement, pressure, temperature and processing requirements.

Keltan 6950C can be considered where high ENB content and fast curing are beneficial to a particular hose compound.
Keltan 6950C low ethylene content can support flexibility, while the high Mooney value provides compound strength.
Actual hose qualification should be based on finished-compound testing rather than the base polymer specification alone.

Keltan 6950C heater hoses and water-handling hoses represent similar service conditions.
The elastomer must resist hot aqueous fluids while retaining flexibility and sealing force.
EPDM is generally much more appropriate for these environments than natural rubber or many unsaturated general-purpose elastomers.

Keltan 6950C industrial seals and gaskets represent another broad application category.
EPDM is used where resistance to ozone, hot water, steam and atmospheric exposure is important.
Keltan 6950C can be formulated across different hardness levels by adjusting fillers, oils and cure density.

Keltan 6950C window and façade gaskets are important construction applications for EPDM.
Building seals remain exposed to sunlight, oxygen, rain and temperature cycling for long periods.
The saturated polymer backbone provides the durability required for long-life exterior sealing systems.

Keltan 6950C construction profiles can be produced continuously by extrusion.
Good green strength is required so that complex cross sections retain their dimensions between extrusion and cure.
The high-Mooney character of Keltan 6950C can be valuable in such processing conditions.

Keltan 6950C roofing and waterproofing are broader EPDM markets.
Keltan 6950C membranes provide flexibility, ozone resistance and long-term outdoor performance.
Grades selected for large roofing sheets may require different rheological characteristics from profile grades, so Keltan 6950C should be evaluated against the specific membrane process.

Keltan 6950C geomembranes represent a related field.
Flexible EPDM sheets can be used in water containment and other outdoor lining applications.
Resistance to weathering and dimensional durability are major advantages of the polymer family.

Keltan 6950C wire and cable compounds are another established EPDM application.
Electrical insulation materials require good dielectric properties together with resistance to heat and environmental aging.
Keltan 6950C can be compounded for insulation and jacket systems where these requirements are important.

Keltan 6950C may use high filler levels and peroxide cure.
Flame-retardant systems can contain large quantities of mineral fillers, making polymer rheology and filler acceptance important.
Keltan 6950C should be evaluated experimentally where such demanding compound designs are intended.

Keltan 6950C industrial rollers can also use EPDM where water, weathering or temperature resistance is required.
Keltan 6950C covered rollers are used in numerous processing operations and may encounter repeated compression and abrasion.
ARLANXEO's current application mapping includes Keltan 6950C within roller-related EPDM selections.

Keltan 6950C roller depends strongly on the process fluid.
Water-based and weather-exposed service is generally compatible with EPDM, while petroleum-oil-rich environments can cause swelling.
Keltan 6950C should therefore be tested in the actual service medium.

Tire sidewall modification represents another application area in which Keltan 6950C appears within the current Keltan portfolio.
Keltan 6950C can contribute ozone and weather resistance when used appropriately in rubber blends.
Compatibility, cure behavior and dynamic performance must be optimized carefully because tire compounds contain multiple elastomers and highly specialized filler systems.

Keltan 6950C can also be blended with other rubbers.
Blending allows compounders to combine the weather resistance of EPDM with mechanical or processing properties contributed by another elastomer.
Cure compatibility between the polymer phases is essential if the blend is to develop uniform mechanical performance.

Thermoplastic vulcanizates represent another wider EPDM application.
Keltan 6950C can be dynamically vulcanized within a thermoplastic matrix such as polypropylene to create a material that combines rubber-like elasticity with thermoplastic processing.
The suitability of Keltan 6950C depends on target morphology, viscosity ratio and dynamic-vulcanization conditions.

Keltan 6950C extrusion of soft profiles places particular emphasis on die swell.
High-molecular-weight elastomers recover elastically after leaving the die and can change profile dimensions.
Die design and compound rheology must therefore be optimized specifically for the selected polymer.

Keltan 6950C surface quality is equally important.
Automotive profiles must often exhibit a uniform surface without excessive roughness, porosity or die lines.
Filler dispersion, extrusion temperature and polymer architecture all influence surface appearance.

Keltan 6950C content of Keltan 6950C enables rapid cure but can also shorten scorch time.
Processing safety must therefore be considered during internal mixing, open-mill operations and extrusion.
Accelerator choice can be adjusted to obtain the required delay before rapid vulcanization begins.

Keltan 6950C dispersion is another major processing factor.
Poor dispersion creates local variations in mechanical properties and can lead to visible surface defects in extruded profiles.
Appropriate mixing sequence, rotor design and dump temperature help obtain a uniform Keltan 6950C compound.

Keltan 6950C oil addition must also be controlled.
Because Keltan 6950C itself is non-oil-extended, the compounder has flexibility to determine process-oil dosage independently.
This makes the grade useful when a tailored hardness or extrusion profile is required.

For very soft sponge compounds, relatively high oil loading may be used.
Keltan 6950C base polymer must retain enough network strength to hold gas cells and resist collapse despite the plasticization.
The high Mooney viscosity of Keltan 6950C is advantageous in this type of formulation design.

For dense profiles, lower oil levels can be used to maintain mechanical strength and compression resistance.
The optimum formulation depends on target Shore hardness, modulus and extrusion speed.
Keltan 6950C is therefore no single universal compounding recipe for Keltan 6950C.

Keltan 6950C sulfur cure systems are especially attractive where high processing speed is required.
The 9.0 wt.% ENB content supports efficient crosslinking and can help achieve short curing cycles.
This contributes to productivity in continuous profile and wiper manufacturing.

Keltan 6950C can be selected when thermal aging and low compression set take priority.
They can also be useful in white or light-colored compounds where sulfur-related discoloration must be controlled.
Peroxide cure requires suitable compounding practices because some ingredients can interfere with radical crosslinking.

Keltan 6950C is also relevant where low-temperature elasticity is important.
The low ethylene content minimizes excessive crystallinity and helps maintain flexible polymer behavior under cold conditions.
Keltan 6950C makes the grade well suited to exterior rubber parts exposed to seasonal temperature variation.

Ozone resistance is central to outdoor sealing applications.
Seals can remain under strain for long periods, a condition that accelerates ozone cracking in susceptible unsaturated rubbers.
Keltan 6950C's saturated backbone provides strong resistance to this degradation mechanism.

UV resistance is similarly important.
Sunlight can initiate polymer oxidation and surface degradation over years of exposure.
Keltan 6950C provides an inherently strong base for weather-resistant compounds, while carbon black and stabilizers can supply additional protection.

Keltan 6950C heat aging must be considered together with weather resistance.
Keltan 6950C is commonly used at elevated temperatures that exceed the practical range of many conventional general-purpose rubbers.
ARLANXEO positions the EPDM family for outdoor and elevated-temperature service, including applications reaching approximately 150 °C depending on formulation and service conditions.

This temperature capability should not be interpreted as a universal continuous-use rating for every Keltan 6950C compound.
Actual service temperature depends on the curing system, fillers, oils, antioxidants, mechanical load and duration of exposure.
Finished-part validation remains necessary before specifying the material for demanding thermal service.

Keltan 6950C also provides good resistance to many dilute acids, alkalis and polar chemicals when properly compounded.
This resistance broadens the use of EPDM into industrial seals and process components.
Strong hydrocarbons and petroleum oils remain an important limitation and should be checked separately.

Steam resistance can be excellent in suitable peroxide-cured EPDM formulations.
This makes Keltan 6950C useful in selected hot-water and steam seals.
The exact pressure, temperature and fluid chemistry must be considered when developing the compound.

Keltan 6950C should be specified by its grade-level properties rather than only by the generic term EPDM.
Mooney viscosity around 65 MU, ethylene content around 44 wt.%, ENB around 9.0 wt.% and density around 0.86 g/cm3 are the principal identifying technical values.
Molecular architecture and absence of intentional oil extension are equally important when evaluating an alternative grade.

Keltan 6950C with the same Mooney viscosity may not process identically if its ethylene and ENB levels differ.
Changing ethylene content can alter crystallinity and low-temperature behavior, while changing diene content directly affects cure speed.
Molecular-weight distribution and branching can additionally change extrusion behavior even where the headline analytical values look similar.

Keltan 6950C is particularly important for sponge extrusion.
A small change in melt strength or cure rate can alter cell size, profile expansion and dimensional stability.
Production trials should therefore be carried out before replacing Keltan 6950C with a nominally similar Keltan 6950C.

The broad application profile of Keltan 6950C includes automotive sponge and dense profiles, weatherstripping, windshield-wiper compounds, sealing systems and selected industrial Keltan 6950C applications.

Its strongest technical combination is high cure activity, relatively low ethylene content, high Mooney viscosity and the weather resistance inherent to Keltan 6950C.
These characteristics make Keltan 6950C particularly useful where fast processing must be combined with flexibility and long-term resistance to atmospheric aging.

Safety Profile Of Keltan 6950C:
Keltan 6950C is supplied as a solid EPDM polymer and is not classified as hazardous in its marketed polymer form under the referenced product-specific safety information.
Keltan 6950C contains the polymer matrix rather than a volatile reactive monomer system, which results in a comparatively low acute exposure hazard during normal cold handling.
Normal industrial hygiene and rubber-processing controls remain necessary during cutting, mixing, heating and compounding operations.

Keltan 6950C is supplied as white solid bales with a slight characteristic odor.
Keltan 6950C solid polymer has very low volatility at ordinary storage temperature.
Routine inhalation exposure is therefore associated more strongly with dust from compounding ingredients and fumes generated during hot processing than with vapor from the polymer itself.

Keltan 6950C contact with the cold polymer is not classified as a significant skin-corrosion or sensitization hazard under the referenced product SDS.
Suitable gloves remain useful during material handling to prevent mechanical injury and contamination from other compound ingredients.
Keltan 6950C hands and exposed skin should be washed after processing operations.

Keltan 6950C hot polymer creates a different hazard.
Molten or highly heated rubber can adhere to skin and produce serious thermal burns.
Heat-resistant protective equipment should therefore be used during high-temperature processing and equipment cleaning.

Keltan 6950C extrusion, mixing and vulcanization can release small quantities of residual substances or thermal decomposition products.
Effective general ventilation should be provided in rubber-processing areas and local extraction can be required around mills, extruders and curing equipment.
Processing temperature should remain within the range appropriate for the compound to minimize unnecessary fume generation.

Keltan 6950C is a combustible organic polymer.
Keltan 6950C product-specific SDS reports a self-ignition value above approximately 370 °C and decomposition above approximately 300 °C.
The material should therefore be protected from excessive heat, flames and uncontrolled ignition sources.

Keltan 6950C incomplete combustion can generate carbon monoxide and carbon dioxide.
Additional fumes can arise from degradation of the polymer and compound additives during a fire.
Firefighters should use appropriate protective equipment and self-contained respiratory protection in a significant fire.

Keltan 6950C fire behavior of a finished Keltan 6950C compound can differ substantially from the base polymer.
Carbon black, oils, flame retardants and other formulation ingredients can modify ignition, smoke and burning characteristics.
Fire classification should therefore be established for the actual compound or finished product where regulatory performance is required.

Keltan 6950C should be protected from moisture and contamination during storage.
The product-specific handling guidance recommends storage in the original closed packaging in a dry, cool and well-ventilated location away from direct sunlight.
Keltan 6950C a storage temperature below approximately 30 °C is recommended in the referenced SDS.

Keltan 6950C prolonged exposure to excessive heat can contribute to polymer aging.
Direct sunlight should likewise be avoided during raw-material storage even though EPDM itself has strong weathering resistance after compounding.
Warehouse control preserves polymer consistency before processing.

Bales should remain clean before entering rubber-mixing equipment.
Foreign material can cause localized defects in extruded sealing profiles and may interfere with cure or surface appearance.
Packaging should therefore be opened only when the polymer is ready for processing.

Keltan 6950C spilled or dropped polymer should be collected mechanically.
Loose pieces can create a tripping or housekeeping problem even when the material itself has low acute toxicity.
Collected clean polymer may be reused only where product-quality procedures permit.

Keltan 6950C base polymer is not soluble in water.
Rubber pieces should therefore be prevented from entering drains, waterways or uncontrolled waste streams.
Disposal and recycling should follow the local requirements applicable to polymer waste and any ingredients contained in the finished compound.

Keltan 6950C safety profile changes significantly after Keltan 6950C is compounded.
Sulfur, accelerators, peroxides, carbon black, process oils, blowing agents and other rubber chemicals each introduce their own hazards.
The SDS of every compound ingredient must therefore be incorporated into the workplace risk assessment.

Keltan 6950C systems require particular care.
Organic peroxides are reactive materials with storage and temperature-control requirements very different from those of Keltan 6950C itself.
Their handling instructions should never be inferred from the comparatively benign classification of Keltan 6950C.

Keltan 6950C sulfur accelerator packages also require separate assessment.
Several common rubber accelerators can cause skin sensitization or other occupational effects.
Protective measures for an EPDM mixing operation must therefore be based on the entire cure system.

Keltan 6950C introduce additional considerations from chemical blowing agents.
Gas generation occurs intentionally during heating and decomposition products must be controlled through ventilation.
Extrusion and vulcanization lines should therefore be designed for the actual foaming chemistry being used.

Keltan 6950C current product-specific Safety Data Sheet should always take precedence for storage, protective equipment, firefighting and accidental-release procedures.
Technical Data Sheet and Certificate of Analysis documentation should be reviewed separately because safety classification does not establish processing suitability or grade consistency.
Raw-material approval should therefore include both technical and occupational-safety documentation.

Keltan 6950C Procurement and Technical Support:
Ataman Kimya supports customers looking for Keltan 6950C with dependable supply solutions and relevant technical information for industrial and formulation requirements. 
Additional support can be provided regarding product specifications, available documentation, and the evaluation of suitable product options based on the intended application.