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Silicone O-Rings

Description:Excellent material for static service at extreme (hot or cold) temperatures.
Outstanding flex and fatigue life. Very good for ozone and UV radiation service as well as
for resistance to fungal and biological attack.

Limitations:Avoid chlorinated solvents, aliphatic and aromatic hydrocarbons and petroleum oils.  Silicones are generally very permeable to gases and have poor physical strength and abrasion resistance.

Chemistry:Methyl disiloxane, with vinyl— and/or phenyl—groups.

Trade Names:SILASTIC ® , SILPLUS ®

ASTM D1418 Designation MQ, PMQ, VMQ, PVMQ

ASTM D2000/SAE J200 Type, Class:FC, FE, GE

Temperature Range:–115° to 232°C (–175° to 450°F)

Typical Uses:LPCVD/Oxidation, Dry Etch, Resist Stripping


Standard Silicones (VMQ)

* Silicone is available in a wide range of Durometers and Colors

High-Temperature Silicone (VMQ)

Compound# Color Hardness
Shore A
Mpa (Psi)
Elongation % 70Hr C/S
@ 200C
Low Temp High Temp
S1015 Orange 68 6.5 (940) 170 36   –70°C (–94°F) 246°C (500°F)

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