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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

25F

450F

Buna-N - Nitrile

-30F

250F

EPDM

-40F

300F

FFKM (Perfluoroelastomer)

0F

500F

Fluorosilicone

-60F

350F

HNBR

-20F

300F

Neoprene

-30F

212F

Nitrile - Buna-N

-30F

250F

Polyacrylate

-10F

300F

Polyurethane

-40F

175F

Silicone CLR

-60F

430F

Silicone GP

-60F

400F

Silicone LSR

-60F

400F

Viton

-10F

400F

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