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Butyl Rubber (IRR) O-Rings


Butyl Rubber (IIR) O-Rings

Temperature Range:

-75°F (-21°C) to 250°F (177°C)

Hardness (Shore A) Range:

30 to 90

Also Know As:

Exxon Butyl®, Polysar Butyl®, Esso Butyl®

Designation:

IIR

Class:

AA,BA

Shelf Life:

15 Years

Description:

Butyl is a copolymer composed of isobutylene and a little bit of isoprene. The isoprene are double-bonded to provide cross-linking during vulcanization.

Advantages:

Outstanding resistance to heat aging, ozone/weather, chemical attack, abrasion and tearing and is gas impermeable. Excellent electrical insulation performance.

Disadvantages:

Not recommended for applications that come in contact with petroleum oils and fluids.

Parker Butyl Rubber (IIR) Compounds

Compound #:Recommended For:Temperature Range:Color:
B0318-70General Purpose-75°F to 250°FBlack
B0612-70Vacuum, Low Compression Set-75°F to 250°FBlack

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