Description

4,7-Methano-1H-Indene,3.Alpha.,4,7,7.Alpha.-Tetrahydro-,Polymer With Ethene And 1-Propene is a high-performance thermoplastic polymer, specifically a terpolymer of ethylene, propylene, and a norbornene derivative. This material is engineered to deliver an exceptional balance of flexibility, chemical resistance, and thermal stability, making it a critical component in advanced material formulations. It is primarily sought by manufacturers in the automotive, wire & cable, and specialty plastics industries for demanding applications where standard polymers fall short.

Application

• Automotive Seals and Gaskets: Used to formulate durable, weather-resistant components that maintain elasticity across a wide temperature range.
• Wire and Cable Insulation: Serves as a key polymer in jacketing and insulation compounds requiring excellent electrical properties and long-term environmental stress crack resistance.
• Polymer Modification and Impact Improvement: Acts as an impact modifier and compatibilizer in blends with polyolefins and engineering plastics to enhance toughness.
• Oil and Gas Hoses: Employed in the production of flexible hoses and tubing that must withstand exposure to hydrocarbons and harsh conditions.
• Thermoplastic Vulcanizates (TPVs): A fundamental component in high-performance TPVs for soft-touch grips, seals, and under-hood automotive parts.
• Adhesives and Sealants: Provides cohesive strength and flexibility in high-performance industrial adhesive and sealant formulations.

Basic Information

Product Name	4,7-Methano-1H-Indene,3.Alpha.,4,7,7.Alpha.-Tetrahydro-,Polymer With Ethene And 1-Propene
CAS No.	25034-71-3
Molecular Formula	(C11H14·C2H4·C3H6)x
Molecular Weight	Varies (Polymer)
Synonyms	Ethylene-Propylene-Dicyclopentadiene Terpolymer; EPDM Rubber (DCPD type); EPDM (Dicyclopentadiene termonomer); 2-Norbornene, 5-ethylidene-, polymer with ethene and 1-propene; Ethene, 1-propene, polymer with 5-ethylidene-2-norbornene; ENB-EPDM (common industry term); DCPD-EPDM; Amorphous ethylene-propylene-diene terpolymer
EINECS	Contact for details

Quality Control

Our ethylene-propylene-diene terpolymer (EPDM) is manufactured under a stringent quality management system. Each batch is tested to ensure consistent performance characteristics such as Mooney viscosity, ethylene content, diene content, and molecular weight distribution. Certificates of Analysis (COA) detailing these specifications are available upon request to support your quality assurance and regulatory compliance needs.

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 strong oxidizing agents and sources of heat or ignition to maintain polymer integrity.

Specification

Item	Specification
Appearance	White to off-white pellets or bale
Mooney Viscosity (ML 1+4 @ 125°C)	20 - 80 (Grade dependent)
Ethylene Content	45 - 75 wt% (Grade dependent)
Dicyclopentadiene (DCPD) Content	1 - 12 wt% (Grade dependent)
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.