Description

Ethylene-Propylene Rubber is a versatile synthetic elastomer known for its excellent resistance to weathering, ozone, and heat. This copolymer is valued for its outstanding flexibility and durability in harsh environments, making it a critical material for demanding industrial applications. Key industries that rely on this high-performance rubber include automotive manufacturing, construction, wire and cable, and polymer modification.

Application

• Automotive Seals and Gaskets: Used in door seals, window channels, and under-hood components for its excellent weather and ozone resistance.
• Polymer Modification and Impact Improvement: Acts as an impact modifier and compatibilizer in thermoplastics like polypropylene (PP) and polyethylene (PE).
• Roofing Membranes and Waterproofing Sheets: A primary material for single-ply roofing systems due to its long-term durability and UV stability.
• Wire and Cable Insulation/Jacketing: Provides reliable electrical insulation and protection against environmental stress in power and communication cables.
• Hoses, Belts, and Industrial Rubber Goods: Manufactured into components requiring flexibility, heat resistance, and chemical inertness.
• Vibration Dampening and Anti-vibration Mounts: Utilized in machinery mounts and automotive components for its elastic properties.

Basic Information

Product Name	Ethylene-Propylene Rubber
CAS No.	61789-00-2
Molecular Formula	(C2H4)x.(C3H6)y
Molecular Weight	Varies by grade and monomer ratio
Synonyms	EPR; EPM; Ethylene Propylene Copolymer; Ethylene-Propylene Elastomer; Ethylene Propylene Monomer Rubber; EPR Rubber; EPM Rubber; Poly(ethylene-co-propylene)
EINECS	263-124-0

Quality Control

Our Ethylene-Propylene Rubber is manufactured under a stringent quality management system. Each batch is tested to ensure consistent properties such as ethylene content, Mooney viscosity, and molecular weight distribution, meeting the requirements of relevant industry standards. Certificates of Analysis (COA) detailing specific test results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from sources of heat, sparks, and open flame. For long-term storage, maintain under an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	White to off-white pellets or bale
Ethylene Content	40 - 80 wt%
Mooney Viscosity (ML 1+4 @ 125°C)	10 - 100
Ash Content	< 0.5 %
Volatile Matter	< 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.