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What type of gasket material is used around gasoline?

Answers:1   |   LastAnswerAt:2011.06  

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Tony Blake 
Asked at 2011.06.13 01:56:48

answer lisa green  Answered at 2011.06.13 01:56:48
Sealing areas containing highly corrosive fluids like gasoline requires a different sort of gasket material. Gas-resistant gasket materials must be chemically inert, heat resistant and flexible enough to prevent leaks.Immersion and IncedentalGas-contact applications are subdivided by whether they involve immersion in fuel or incidental contact with aerosolized gas.Natural GasketsMost carburetor base gaskets are made of natural (cork) fiber, which are impregnated with enough resin to resist gasoline absorption.SyntheticsMany modern fuel injection systems use gaskets made of neoprene or nitrile rubber (the same kind used for chemically resistant gloves).Combination GasketsMany cars use combination gaskets primarily composed of a hard, injection-molded plastic. The gasket's gas-carrying passages are sealed with rubber or synthetic rubber O-rings.SiliconeSilicone RTV (Room Temperature Vulcanizing) sealants aren't recommended for gasoline-contact applications, but are commonly used by professional shops and manufacturers alike for just such purposes.
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