E70920

Stock et disponibilité
En stock: 506
Stock entrant: 0
Offsite Stock: 0 ($50 Ligne Min)
Nouvelle production: illimitée ($250 Ligne Min)
Expédition accélérée*: 06/03/2024
Expédition standard: 08/22/2024
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Numéro de pièce d'échange

  • MCMASTER-CARR 9557K453

Informations complémentaires

Poids 0.00227 livres
Shipping Dimensions 1.711 × 1.711 × 0.118 pouce
Material

Color

Durometer

Size

920

Description

SPEC SHEET: Ethylene Propylene Rubber (EPR, EPDM) 70 Durometer.pdf

Ethylene Propylene Rubber (EPR, EPDM)

Material Description

Ethylene Propylene Rubber (EPDM) is a Copolymer of ethylene and propylene. Furthermore, it is a terpolymer of ethylene and propylene with a small amount of a third monomer (usually a diolefin) to permit vulcanization with sulfur. Generally, EPDM possesses an excellent resistance to ozone, sunlight and weathering, and has very good flexibility at low temperature, good chemical resistance (many dilute acids and alkalis as well as polar solvents) and good electrical insulation property.

Cure system: Peroxide-cured

Standard EPDMs are usually sulfur-cured. Sulfur-cured compounds offer better flexible properties but are more prone to hardening and have an inferior compression set with high temperature. Peroxide-cured EPDMs have better heat resistance and a lower compression set. It complies with long-time usage, especially for hose systems in the construction industry, but is more expensive and more difficult for production than the sulfur-cured EPDMs.

Temperature Range:

Standard Low Temp: -55°C (-67°F)

Standard High Temp: 125°C (257°F)