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Ethylene Propylene (EP) Rubbers for Plastic Parts: Overview

Based on 299 products - Last update on the Jun 26, 2025

Ethylene propylene rubber is known for excellent electrical insulation properties, outstanding ozone and weather resistance, good heat resistance, remarkable low-temperature flexibility, and superior resistance to polar chemicals including acids, bases, and alcohols. EPR excels in automotive weather sealing, roofing membranes, electrical insulation, and outdoor applications. 

Alternatives to EPR include natural rubber and SBR. The industry is trending toward sustainable formulations incorporating bio-based materials and grades optimized for improved processing efficiency. Various types exist including EPM (no diene, peroxide-cured, excellent heat resistance), EPDM (incorporating a diene for sulfur curability), and specialty grades with different ethylene content (typically 45-75%) affecting crystallinity and hardness, along with oil-extended versions for improved processing and cost-effectiveness.

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NORDEL™ IP 4770P EPDM

by Dow

NORDEL™ IP 4770P EPDM by Dow is a high molecular weight, semi-crystalline ethylene-propylene-diene terpolymer (EPDM). It offers fast cure rates and high states of cure with standard sulfur cure systems. It exhibits high green strength and high extensibility.<br> <ul style="padding-left: 40px;"><li>It provides great physical performance and supports the global transition to a low-carbon economy.</li> <li>It is suitable for processing by profile extrusion.</li> <li>It is used in applications such as automotive and general purpose hoses and tubing, weatherstrips, low voltage wire and cable jacketing and plastics modification.</li> <li>It can also be used in contact with all foods except water in oil emulsions, high or low fat, and low moisture fats and oil.</li> <li>It is free of BSE/TSE, palm oil, mineral oil and GMO.</li> <li>NORDEL™ IP 4770P EPDM is Halal, Kosher, complies with TSCA, FDA 21CFR 177.1520, FDA 21 CFR 177.2600, FDA 21 CFR 175.105, FDA 21 CFR 177.1210, (EU) 10/2011<, GB 4806.1-2016, GB 4806.11-2023, GB 4806.7-2023, GB 9685-2016, MERCOSUR, ANVISA, EU Directive 2011/65/EU (RoHS) and conforms to EU 94/62/EC, CONEG.</li></ul>
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NORDEL™ IP 4785HM EPDM

by Dow

NORDEL™ IP 4785HM EPDM by Dow is a high-viscosity, semi-crystalline, ethylene propylene diene monomer (EPDM) grade. It offers ease of processing, fast cure rates, and high states of cure with standard sulfur cure systems.<br> <ul style="padding-left: 40px;"><li>It is designed for molded and extruded applications that require high viscosities, high green strength, and high filler capacity. </li> <li>Additionally, it can also be peroxide cured.</li> <li>It exhibits medium diene levels with low gel content and supports the global transition to a low-carbon economy.</li> <li>NORDEL™ IP 4785HM EPDM is used in automotive weather stripping, and hose and tubing.</li> <li>It complies with FDA 21 CFR 177.2600, 21 CFR 177.1520, 21 CFR 175.105 and 21 CFR 177.1210.</li></ul>
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NORDEL™ IP 3722P EPDM

by Dow

NORDEL™ IP 3722P EPDM by Dow is a semi-crystalline, very low diene-containing ethylene propylene diene monomer (EPDM) with low molecular weight. It offers low viscosity, excellent processability, heat and UV stability. It provides low unsaturation and excellent resistance to heat and UV. It supports the global transition to a low-carbon economy.<br> <ul style="padding-left: 40px;"><li>It can also be used in peroxide cured molded and other extruded applications.</li> <li>It is specially designed for medium voltage wire and cable applications and plastic modification.</li> <li>NORDEL™ IP 3722P EPDM is Halal, Kosher, complies with TSCA, FDA 21 CFR 177.2600, FDA 21 CFR 175.105, Regulation (EU) 10/2011, GB 4806.11-2023, GB 4806.1-2016, GB 4806.7-2023, GB 9685-2016, MERCOSUR, ANVISA, EU Directive 2011/65/EU (RoHS) and conforms to EU 94/62/EC, CONEG.</li></ul>
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Ethylene Propylene (EP) Rubbers