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A gasket is a mechanical seal that fills the space

between two objects, generally to prevent leakage

between the two objects while under compression.

Gaskets save money by allowing "less-than-perfect"

mating surfaces on machine parts which can use a

gasket to fill irregularities. Gaskets are commonly

produced by cutting from sheet materials, such as

gasket paper, rubber, silicone, metal, cork, felt,

neoprene, nitrile rubber, fiberglass, or a plastic

polymer (such as polychlorotrifluoroethylene). Gaskets

for specific applications may contain asbestos. It is

usually desirable that the gasket be made from a

material that is to some degree yielding such that it is

able to deform and tightly fills the space it is designed

for, including any slight irregularities. Many gasketsrequire an application of sealant directly to the gasket

surface to function properly.

GASKET

A gasket is material that is clamped between twoseparate mechanical mating surfaces. Gaskets maintain

a mechanical seal between the two surfaces under

compression to prevent leakage of liquids or gases

History

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Gaskets came into use during the industrial revolution.

Applications for them expanded during the steam-

engine period and accelerated with the invention of the

internal combustion engine.Function

The mating surfaces of two joined machined surfaces

have slight irregularities and imperfections which

would allow leakage from or into them without the

installation of a material with some ability to yield and

conform to the irregular surfaces under compression.Gaskets fulfill that function.

Types

There are many types of gaskets. The type used for a

specific application is determined by the intended use,

type of chemical contact and physical parameters of the

joined surfaces.

Materials

Gaskets are manufactured from a variety of materials

including rubber, paper, plastic, silicone, metal, cork,

felt, neoprene, fiberglass, wax and asbestos.

Significanc

eGaskets save money because they are relatively

inexpensive and allow effective joining of mating

surfaces with slight irregularities. That eliminates the

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Graphite Gaskets

4.Flexible graphite has a strong heat resistance. It isvaluable because it can stand very acidic and

alkaline conditions.

EPDM Material

5.This material is good for ozone exposure,weathering and UV rays. It is also resistant to

animal and vegetable oils and many chemicals.