Material

EPDM

EPDM's saturated backbone gives outstanding resistance to ozone ageing, UV and weathering along with strong performance in water, steam, brake fluid and other phosphate-ester hydraulic fluids. Supplied in both sulphur-cured and peroxide-cured grades. It should never be specified where the seal will contact mineral oils or greases.

EPDM O-rings — excellent for water, steam and outdoor applications.

Material Data Sheet

Temperature range

-50°C to +150°C

Hardness range

30–90 Shore A

Resists

Water, steam, glycols, brake fluid, ozone, weathering, dilute acids, alkalies, ketones, alcohol, fire-retardant hydraulic fluids

Avoid with

Mineral oils, greases, petroleum-based fuels and hydrocarbons

Applications

Where it's used

Potable water and steam systems, brake systems, outdoor/weather-exposed seals, HVAC.

Properties

Key advantages of EPDM

Outstanding resistance to ozone, UV and weathering — ideal for outdoor installations
Temperature range from -50°C to +150°C (peroxide-cured grades to +160°C)
Excellent resistance to hot water and low-pressure steam
Good electrical insulation properties
Available in FDA and WRAS (potable-water) approved grades

EPDM's saturated polymer backbone gives it the longest service life of any general-purpose elastomer in ozone and weathering exposure. FITCO supplies EPDM O-rings and gaskets across AS568, ISO 3601, metric and custom sizes for water treatment, HVAC, beverage dispensing, automotive cooling systems and general-purpose outdoor sealing.

Available as