Vellutherm 611

A nonasbestos beater addition material consisting of a unique blend of fibers and other components with a cured nitrile rubber binder. Vellutherm 611 demonstrates high compressive strength and excellent dimensional stability under varying ambient humidities at service temperatures up to 350° F.

Compressibility % @ 35.5 MP’s (5000 psi)
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  • 10-20
Compressibility % @ 6.89 MP’s (1000 psi)
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  • -
Minimum Recovery %
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  • 50
Tensile Strength Minimum %
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  • 2000
ASTM Oil No. 3 Thickness Increase Maximum %
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  • 10
Weight Increase Maximum %
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  • 30
ASTM Fuel B Thickness Increase Maximum %
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  • 15
Weight Increase Maximum %
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  • 30
Distilled Water Thickness Increase Maximum %
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  • -
Weight Increase Maximum %
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  • -
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Vellumoid Gasket Material
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