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Mica Gasket material
 Mica
gasket material is exceptional in it resistance to
high heat. At temperatures over 900 F the ideal
sealing material Grafoil or flexible graphite cannot
be used. Flexible graphite or Grafoil will coke at
those elevated temperatures when oxygen is present,
where mica gasket material will not (900 - 1850 F).
Mica
gasket material is an excellent alternative in these
high temperature (to 1800 F) applications. Some of
the basics on Mica are shown below. As a gasket
material Mica can be very effective in sealing those
high temp critical applications with out failing due
to the presence of oxygen.
Mica
is a mineral, which offers a wide range of
exceptional properties.
You
may find that some of the properties of mica could
improve the different products in your range.
Mica
which comes in the form of flaks is completely
harmless and presents very high thermal and
mechanical performances, allowing
it to successfully replace asbestos gasket material
in many applications.
Mica Thermal
Properties
Withstands
heat up to temperatures of 1850oF (1000oC).
Ø
Resists fire without burning.
Ø
Low heat conductivity.
Mica Electrical
Properties
Ø Insulating
strength better than 25kV/mm.
Ø Good
resistance against arcing and arc erosion.
Ø
Permeability to microwaves.
Mica
Chemical Properties
Mica
is inert to most chemical agents, in particular
solvents, acids bases and mineral oils.
Very
good compression resistance.
Ø Good
tensile and bending strength.
Ø Large
elasticity modulus.>>The
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