Epichlorohydrin Rubber

Epichlorohydrin rubber (ECH / ECO) is a superior grade, multipurpose polymer that’s widely-used in automotive applications. It bridges the gap between nitrile and other considerably more expensive polymers.

Epichlorohydrin rubber (ECH / ECO) offers excellent performance in high and low temperatures. Due to its temperature flexibility, epichlorohydrin rubber (ECH / ECO) has become increasingly popular in severe applications like arctic refueling hose assemblies and tubing, and sealing conditions.

Often compared to Nitrile, epichlorohydrin rubber (ECH / ECO) offers better heat, oil and petrol resistance. It’s extensively used in fuel applications such as automotive fuel systems, bladders and die-cut sealing. It exhibits excellent resistance to acids, alkalis and ozone exposure. Typical working temperatures range from -35°C to +125°C.

Epichlorohydrin Rubber

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Description Durometer Tensile (Min PSI) Elongation (%) Temperature Range (F) Specification Conforms to ASTM D20000 Spec Sheet Quote

H521

60

1100

300

-40° to 240°

2CH608A25B14C12F17

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H523

70

1100

300

-40° to 240°

2CH711A25B14C12F17

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Epichlorohydrin rubber (ECH / ECO) has low gas permeability and offers good resistance to bio-fuel and abrasion. It’s elevated service temperature and fuel resistance make it an excellent option for applications that are typically exposed to difficult  conditions. It also has superior strength against tears and resistance. Epichlodohydrin rubber has similar traits of Nitrile with enhanced weather and ozone resistance. It requires longer vulcanization times and tempering is typically necessary.

Common applications of epichlodohydrin rubber (ECH / ECO) include seals, membranes, hoses and roll coverings. It’s important to note that epichlorohydrin rubber (ECH / ECO) can have a corrosive effect on select metals, which can increase tooling costs and limit metal bonding applications. Its compression set is also limited and it is not recommended for use as a sealing material. As with all BRP rubber products, our epichlorohydrin rubber (ECH / ECO) is American-made in our Lima, Ohio facility.