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CORK in combination with RUBBER Provides unique properties.
By itself Cork is amazing, it is natural, light, imputrescible,
impervious to liquids and gases, flexible, resistant, it has
great dimensional stability and is a thermal and acoustic
insulator. Remarkably when combined with rubber we get properties
of the polymer plus the property of true compressibility.
This unique combination has a never-ending potential of applications.
Rubberized Cork has major superiorities over other gasket
material, which makes it ideal for wide range of other gasket
material where application of oil is involved and only choice
for flanges, which are not fully flat, or having limited surface
area. Other material under pressure crush, distort or extrude.
Cork is endowed with a natural property allowing it to recover
its initial shape after being compressed. Cork is the only
material that can compress without lateral spread, and can
recover up to 80% of its original thickness. This property
ensures there is a Relaxation stress (outward pressure) on
the flanges to maintain the seal.
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Rubber
Cork
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Other
Material
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When
Compressed
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APPLICATION:
Synthetic Rubber bonded cork sheets have wide application
where gas, oil or any other liquid is used at low bolt loads.
Thus it has wide application in Transformers & switchgears,
Automobiles and General electrical industry. Many applications
ranging from gearboxes, inspection covers to water piping
gaskets use rubber - cork. In high voltage transformers rubberized
cork sheet is used as oil sealants. Even at elevated temperature,
Rubberized Cork Sheets have a deformity of less than 0.1%
and the physical stability of the products is excellent. They
do not swell, have high tensile strengths and are resistance
to the temperature as high as 110 degree Celsius. In automobile
industry, rubberised cork gaskets are used as a sealant for
engine heads, sumps or packing to prevent leakage of oil.
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