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Temperature Range of O-Rings
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The 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 is short or intermittent.

Material

Low end Operating Temperature

High end
Operating
Temperature

Aflas®

25F

450F

Butyl

-60F

250F

EPDM

-40F

300F

FFKM (Perfluoroelastomer)

0F

500F

Fluorosilicone

-60F

350F

HNBR

-20F

300F

Neoprene®

-30F

212F

Nitrile

-30F

250F

Polyacrylate

-10F

300F

Polyurethane

-40F

175F

SBR

-20F

212F

Silicone CLR

-60F

430F

Silicone GP

-60F

400F

Silicone LSR

-60F

400F

Viton®

-10F

400F

agencies

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