Description

Bicyclo[2.2.1]Hepta-2,5-Diene, Polymer With Ethene, 1,4-Hexadiene And 1-Propene is a high-performance synthetic polymer, specifically a terpolymer of ethylene, propylene, and a diene monomer (EPDM rubber). This compound matters for its exceptional resistance to weathering, ozone, and a wide range of chemicals, making it a critical material for durable elastomer applications. Industries requiring reliable, long-lasting sealing, insulating, and flexible components, such as automotive manufacturing, construction, and wire & cable production, depend on the consistent quality of this polymer.

Application

• Automotive Seals and Gaskets: Used in door seals, window channels, and under-hood gaskets due to its excellent weather and ozone resistance.
• Construction Weather-stripping: Ideal for sealing windows, doors, and curtain walls in buildings.
• Polymer Modification and Impact Improvement: Acts as an impact modifier for thermoplastics like polypropylene (PP) and polyethylene (PE).
• Wire and Cable Insulation: Provides superior electrical insulation and environmental protection for cables.
• Hoses and Belts: Manufactured into radiator, heater, and industrial hoses, as well as timing belts.
• Roofing Membranes: A key component in single-ply roofing systems for its durability and flexibility.
• Vibration Dampening Mounts: Used in automotive and industrial machinery for noise and vibration control.
• Sporting Goods and Consumer Products: Found in grips, seals for appliances, and other molded rubber goods.

Basic Information

Product Name	Bicyclo[2.2.1]Hepta-2,5-Diene, Polymer With Ethene, 1,4-Hexadiene And 1-Propene
CAS No.	25190-87-8
Molecular Formula	(C7H8·C2H4·C6H10·C3H6)n
Molecular Weight	Polymer - varies by grade
Synonyms	EPDM Rubber; Ethylene Propylene Diene Monomer Rubber; 2,5-Norbornadiene, polymer with ethene, 1,4-hexadiene and propene; Ethene, polymer with 1-propene and 5-ethylidene-2-norbornene; ENB-EPDM; DCPD-EPDM; Terpolymer of Ethylene, Propylene and a Diene; Synthetic Rubber
EINECS	Contact for details

Quality Control

Our EPDM rubber is manufactured under strict quality management systems to ensure batch-to-batch consistency and performance. Key parameters such as ethylene content, diene content, Mooney viscosity, and molecular weight distribution are rigorously controlled. Certificates of Analysis (COA) detailing specific grade specifications are available upon request, supporting compliance with relevant industry and customer-specific requirements.

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, it is recommended to keep the material under an inert atmosphere to prevent oxidation.

Specification

Item	Specification
Appearance	White to pale yellow pellets or bale
Ethylene Content	45 - 75 wt%
Diene Content (ENB type)	3.0 - 12.0 wt%
Mooney Viscosity (ML 1+4 @ 125°C)	20 - 100
Specific Gravity	0.85 - 0.88
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.