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O-ring Temperature Chart

The O-rings' temperature range is determined by the base elastomer used. This chart depicts the maximum temperature range for each elastomer. The temperature range for a specific compound may not reach these maximum limits. Higher temperatures may be considered if exposure to the o-ring is short or intermittent.

Material

Low end Operating Temperature

High end
Operating
Temperature

Aflas®

25°F

450°F

Buna-N - Nitrile

-30°F

250°F

EPDM

-40°F

300°F

FFKM (Perfluoroelastomer)

0°F

500°F

Fluorosilicone

-60°F

350°F

HNBR

-20°F

300°F

Neoprene®

-30°F

212°F

Nitrile - Buna-N

-30°F

250°F

Polyacrylate

-10°F

300°F

Polyurethane

-40°F

175°F

Silicone CLR

-60°F

430°F

Silicone GP

-60°F

400°F

Silicone LSR

-60°F

400°F

Viton®

-10°F

400°F