“Quality is our highest Principle”

Products

EPDM

KEP EP(D)M synthetic rubber has excellent weatherability and chemica resistance. Superior mechanical properties including processability are maintained even with high filler loading compound. The processing characteristics of the EP(D)M rubber compound is determined by the content and structure of the filler and the type and content of the process oli as well as the structure and type of the base polymer.

EPDM

Features

KEP EP(D)M synthetic rubber has excellent weatherability and chemica resistance. Superior mechanical properties including processability are maintained even with high filler loading compound. The processing characteristics of the EP(D)M rubber compound is determined by the content and structure of the filler and the type and content of the process oli as well as the structure and type of the base polymer. Therefore, selecting adequate compounding ingredients is essential for the design of EP(D)M rubber compound to obtain the required properties and superior workability of the product.

The compounding ingredients used to improve the physical properties of the final rubber product and to get the cost effective compounds are called fillers. All types of fillers generally used in rubber industry are available for EP(D)M. Though it varies more or less by the molecular weight, ethylene content, and diene content, lots amounts of fillers can be added to EP(D)M synthetic rubber compared with other types of syntetic rubbers.

POLYMER

Provides the basic characteristics of the compound and selected according to the use of the final vulcanized product. For secific purposes, the processabillty and physical properties of the EP(D)M synthitic rubber can be coordinated by blending.

CARBON BLACK

The most widely used reinforcing filler is the carbon black. Physical properties(Stength and hardeness) of final rubber products are determined by the type and content of the carbon black.

CARBON BLACK Characteristic Factors

icle Size and Structure
Surface area & Activity
Degree of aggregation

MINERAL FILLER

Mineral fillers are used for the color compound, for processabillty improvement of black color compounds, or for cost reduction. Various mineral fillers are available according to the purpose such as reinforcing, procssabillity, or economy. As is the carbon black, the size, shape, and surface characteristics of particle of the mineral fillers infuence the physical properties of the rubber product. Calcium carbonate, clays, TALC are typical mineral fillers. Aluminum hydroxid is used in flame resistant rubber products.

PLASTICIZER

Generally, EPDM is very compatible with paraffinic type oils. Armonatic oils should be avoided because they have less compatiblity with EPDM on cure. Viscosity is an important parameter in case of selection an plasticizer. im general, the higher viscosity oils enhance physical property, improve heat resistande, and reduce compound viscosity but case porous problem on extruded profile.

EPDM

Product Name	Mooney Viscosity (ML1+4,100°C)	ENB Content (Wt.%)	Ethylene Content (Wt.%)	Extender Oil (PHR)	Product Form (1)	Characteristic	Purpose
KEP020P	25	-	71	-	P	With a low molecular weight, the product is excellent in terms of its flow and workability. It has low temperature and is used as a modifier for plastic.	PP/PE modifier: TPO, sponge, sheets, coating materials, and automotive parts (bumpers, spoilers, and instrument panel)
KEP070P	69	-	71	-	P	With a medium molecular weight, the product has excellent mechanical properties and is used as a modifier to supplement the shock resistance of polyolefin (PP, PE).	PP/PE modifier: Polyolefin modifiers, film, sheets, and injection moldings (bumpers and others)
KEP110	40	-	52	-	B	With a bale shape, the product is unstructured and excellent in terms of workability and heat resistance.	Heat-resistant belts, electric wire covers, oil modifiers, adhesives, binders, brake parts, and gaskets

Product Name	Mooney Viscosity (ML1+4,125°C)	ENB Content (Wt.%)	Ethylene Content (Wt.%)	Extender Oil (PHR)	Product Form (1)	Characteristic	Purpose
KEP435	33	2.3	57	-	B	With a low molecular weight and ENB content, the product is excellent in terms of heat resistance, ozone resistance, and scorch stability. In particular, it has excellent IIR and blending characteristics.	Automotive tire tubes, waterproof sheets, roofing sheets, and heat-resistant belts.
KEP430H	43	1.6	57	-	B	With a low molecular weight and ENB content, the product is excellent in terms of heat resistance, ozone resistance, and scorch stability. In particular, it has excellent IIR and blending characteristics.	Automotive tire tubes, waterproof sheets, roofing sheets, and heat-resistant belts.

Product Name	Mooney Viscosity (ML1+4,125°C) (2)	ENB Content (Wt.%)	Ethylene Content (Wt.%)	Extender Oil (PHR)	Product Form (3)	Characteristic	Purpose
KEP210	23	5.7	65	-	B	With a low molecular weight, the product has a fast vulcanization speed and good in terms of workability and extrudability.	Electric wire covers, insulation cables, automotive parts, extrusion objects, window seals, and sponge
KEP510	23	5.7	71	-	B	Suitable for high-hardness products, the product has a fast vulcanization speed and excellent in terms of its workability in a roll and extrudability.	Electric wire covers, insulation cables, automotive parts, extrusion objects, and glass run for high hardness
KEP2320	25	4.7	58	-	B	The product has a medium vulcanization speed and excellent in terms of its workability in a roll, extrudability, and electrical insulation characteristics. With a non-oil type mixing characteristic, the product has an excellent processing characteristic.	Electric wire covers, insulation cables, brake parts, automotive molding and sponge, oil-free compounds (brake hose), and gaskets
KEP7141	27	4.5	51	-	B	With a low molecular weight, the product has a medium vulcanization speed, excellent in terms of its workability in a roll, and low temperature characteristics. With non-oil type mixing characteristic, the product has excellent processing characteristics.	Sponge, electric wires, cables, electronic parts, gaskets, industrial products, and oil-free compounds (brake hoses)
KEP240	42	4.5	57	-	B	The product is excellent in terms of workability and has a medium vulcanization speed. It is a general product with good properties.	Industrial products, automotive products, and injection products
KEP570P	53	4.5	70	-	P	The product is used as a modifier to supplement the shock resistance of polyolefin (PP, PE).	For modifying resins - Blend with PP: Polyolefin modifiers, film, sheets, injection moldings (such as bumpers), and automotive parts
KEP570F	59	4.5	70	-	FB	As a high ethylene with a medium molecular weight, the product has a high green strength, medium vulcanization speed, excellent extrudability and a high filling characteristic.	Aotomotive and industrial hoses, hoses for washing machines, automotive parts, and extrusion objects
KEP5770	73	5.0	74	-	FB	As a high ethylene with a high molecular weight, the product has a high green strength, medium vulcanization speed, excellent extrudability, and outstanding properties in high-filling conditions.	Aotomotive and industrial hoses, hoses for washing machine, automotive parts, and extrusion objects
KEP270	71	4.5	57	-	B	With a high molecular weight, the product has a medium vulcanization speed. High-filling is possible without damaging the mechanical properties of the product.	Heat-resistant hoses, hoses for washing machines, automotive parts and extrusion objects, and window profiles for buildings
KEP2380	82 (1)	5.7	56	-	SFB	With tailored molecular weight distribution, the product is excellent in terms of workability. It also has a fast extrusion speed, a fast vulcanization speed, and other good mechanical properties.	60-70 Shore A Dense Body Sealing, Radiator Hoses, Molded Goods, Gaskets, Sponge profile
KEP281F	82 (1)	5.7	67	-	FB	With a high molecular weight, the product has a high-filling characteristic, a fast vulcanization speed, as well as excellent extrudability and collapse resistance.	Weatherstrip solid, automotive parts and extrusion objects, and heat-resistant hoses
KEP282F	90 (1)	5.7	73	-	FB	With a high molecular weight, the product has a high-filling characteristic, a fast vulcanization speed, excellent extrudability and collapse resistance, and outstanding mechanical properties.	Weatherstrip solid, automotive parts and extrusion objects, and heat-resistant hoses
KEP1030F	86 (1)	4.5	62	-	FB	With a high molecular weight, the product has a high-filling characteristic and excellent mechanical and extrusion properties.	Weatherstrip solid, extrusion profiles, radiator hoses, and heat-resistant hoses
KEP2371	115 (1)	7.0	70	-	B	With a high molecular weight, the product has a fast vulcanization speed, excellent mechanical properties, as well as outstanding extrudability and collapse resistance.	Weatherstrip solid, automotive parts and extrusion objects, and heat-resistant hoses
KEP2372	115 (1)	6.5	72	-	B	With a high molecular weight, the product has a fast vulcanization speed, excellent mechanical properties, as well as excellent extrudability and collapse resistance.	Weatherstrip solid, automotive parts and extrusion objects, and heat-resistant hoses

Product Name	Mooney Viscosity (ML1+4,125°C) (2)	ENB Content (Wt.%)	Ethylene Content (Wt.%)	Extender Oil (PHR)	Product Form (3)	Characteristic	Purpose
KEP330	28	7.9	57	-	B	With a low molecular weight, the product is excellent in terms of workability. It also has a very fast vulcanization speed and is suitable to be blended with diene rubber.	Tire cover strips, white sidewalls, weather strip solid, automotive parts, extrusion objects, heat-resistant hoses, gaskets, packaging, and sponge.
KEP650L	41	8.7	59	-	B	With a medium molecular weight, the product has a very fast vulcanization speed and good workability.	Sponge, automotive parts, extrusion objects, and industrial products
KEP650	49	8.7	59	-	B	With a medium molecular weight, the product has a very fast vulcanization speed and good workability.	Sponge, automotive parts, extrusion objects, and industrial products
KEP350	56	7.9	57	-	B	The product has an excellent workability and a very fast vulcanization speed. It is also suitable to be blended with diene rubber.	Tire cover strips, white sidewalls, automotive parts, extrusion objects, gaskets, packaging, and sponge
KEP370F	69	8.1	59	-	FB	The product has an excellent workability and a very fast vulcanization speed. It is also suitable to be blended with diene rubber.	Weather strip body/door seal, gaskets, and packaging.
KEP2480	81 (1)	8.9	58	-	SFB	With tailored molecular weight distribution, the product is excellent in terms of workability. It has a fast extrusion speed and a very fast vulcanization speed aside from its excellent collapse resistance and compression set.	Sponge body sealing, automotive parts, and extrusion objects
KEP9590	95 (1)	10.0	52	-	SFB	As a low ethylene product with a high molecular weight and a high ENB, the product is excellent in terms of workability and has a very fast vulcanization speed, resulting to outstanding productivity. In particular, its mechanical properties and compression set are exceptional. It has a good extrusion surface and softness and is accordingly suitable for automotive sponge products.	Sponge Body sealing, automotive parts, and extrusion objects

Product Name	Mooney Viscosity (ML1+8,125°C) (2)	ENB Content (Wt.%) (1)	Ethylene Content (Wt.%) (1)	Extender Oil (PHR)	Product Form (3)	Characteristic	Purpose
KEP960N(F)	49	5.7	70	50	B,FB	As a product that is high in ethylene and with a high molecular weight, the product has an outstanding filling characteristic and excellent mechanical properties. When colors are mixed using non-aromatic paraffinic oil, the product provides an excellent stability against ultraviolet rays.	Radiator hoses, automotive moldings, gaskets for washing machines, anti-vibration rubber, and extrusion objects
KEP980	58	4.5	71	75	B	As a product that is high in ethylene and with a high molecular weight, the product has an outstanding filling characteristic and excellent mechanical properties. It is also suitable for low-hardness products.	Automotive parts and extrusion objects, anti-vibration rubber (mounts), TPV, and gaskets for washing machines
KEP980N	58	4.5	71	75	B	As a product that is high in ethylene and with a high molecular weight, the product has an outstanding filling characteristic and excellent mechanical properties. In particular, when colors are mixed using non-aromatic paraffinic oil, which is appropriate for low-hardness products, as a new dielectric material, the product provides excellent stability against ultraviolet rays.	Automotive parts and extrusion objects, anti-vibration rubber (mounts), TPV, and gaskets for washing machines
KEP901	50	4.8	70	100	B	As an oil 100 phr-extended product, the product is suitable for low-hardness mixing, and it has an outstanding filling characteristic and excellent mechanical properties.	Automotive moldings, low hardness mixing, damping parts, and TPV
KEP902N	52	4.5	66.5	100	B	As an oil 100 phr-extended product, the product is suitable for low-hardness mixing, and it has an outstanding filling characteristic and excellent mechanical properties. In particular, when colors are mixed using non-aromatic paraffinic oil, which is appropriate proper for low-hardness products, as a new dielectric material, the product provides excellent stability against ultraviolet rays.	Automotive moldings, low hardness mixing, damping parts, TPV, and gaskets for washing machines

Product Name	Melt Index (2.16kg / 230°C)	Yellowness	Product Form (1)	Characteristic	Purpose
KEPA 1130	3	14	P	The product is a special polymer made by grafting maleic anhydride into EP(D)M blend. It can also be blended with a polar polymer. * Impact modification: polyamides, polyesters and others. * Compatibilizer: Polyamide/polyethylene, polyamide/polypropylene, and others. * Coupling agent: Polyethylene/CaCO3, polypropylene/glass and others.	Ski surf bindings, automotive wheel cap, oil separator, helmet, and others.
KEPA 1150	2	11	P	The product is a 100% rubber-type special polymer made by grafting maleic anhydride into polyolefin elastomer, which contains EP(D)M. It can also be blended with a polar polymer. * Impact modification: Polyamides, polyesters, etc. * Compatibilizer: Polyamide/polyethylene, polyamide/polypropylene, etc. * Coupling agent: Polyethylene/CaCO3, polypropylene/glass, etc.	Ski surf bindings, automotive wheel cap, oil separator, helmet, and others.

Contact Us

Trading in natural rubber and natural latex is the main business of WEBER & SCHAER . Regular visits to supplier countries keep us in constant contact with almost all important producers. A check of all goods arriving at our warehouse provides us with an overview of the quality of their products.

Product Information

Contact Information

Sectors Served

The seven major objectives of its ethical management achieving blameless management.

Our Company Catalog

The seven major objectives of its ethical management achieving blameless management.

What is Rubber ?

We provide answers to all the questions concerning rubber.

Human Resource

Our human resources policy