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Rubber seal products |
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Tistam supply
VITON (FKM), Ethylene propylene (EPDM), Silicon rubber (SIL),
Kalrez and Nitril (NBR). V-ring, O-ring, U-rin. |
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Also we supply other special rubber product in all sizes such
as:
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Nitrile butadiene ( NBR )
Is a copolymer of acrylonitrile and butadiene, and
it is available in various ratios of these monomers.
Better Known as nitriles, reinforced NBR rubbers
have good oil and gasoline resistance, tensile strength,
elongation properties, heat resistance and low compression
set. Special compounding is required for good weather
ability.
Typical applications for these medium priced
tubers are seal, O-rings, gaskets, diaphragms, pipe gaskets,
tank linings, boots and bellows. |
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Ethylene propylene (EPR and
EPDM)
Is produced in two types: a fully' saturated
copolymer of ethylene and propylene (EPR) and an unsaturated
version of ethylene and propylene plus a no conjugated diene
as a third monomer (EPDM).
Being unsaturated, the terpolymer is capable of
sulfur vulcanization.
The copolymer must be, and the terpolymer may be,
cured with peroxides also. |
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Fluorocarbon (VITON) (FKM)
Viton is
produced as either a copolymer of vinylidene fluoride and
hexafluoropropylene (A family), a terpolymer of
tetrafluoroethylene, vinylidene fluoride, and
hexafluoropropylene (B family) or a tetra polymer composed
of tetrafluoroethylene vinylidene fluoride, a cure site
monomer, and either hexafluoropropylene or
perfluoromethylvinyl ether (F family). These moderately
expensive elastomers exhibit excellent resistance to heat,
ozone, oils, mechanicals, and some solvents. Higher levels
of chemical resistance or enhanced low temperature
properties are achieved through the selection of the proper
polymer family. The recent introduction of Viton Extreme (ETP
polymer) which is produced as a tetrapolymer of ethylene,
tetrafluoroethylene, perfluoromethylvinyl |
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ether
and cure site monomer offers additional chemical resistance,
approaching that of a Perfluoroelastomer, and will handle highly
aggressive chemicals such as amines, steam, and polar solvents.
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Silicon rubber (SIL)
Silicone
rubber offers good resistance to extreme temperatures, being
able to operate normally from −55 °C to +300 °C. At the
extreme temperatures, the tensile strength, elongation, tear
strength and compression set can be far superior to
conventional rubbers although still low relative to other
materials. Organic
rubber has
a carbon to
carbon backbone which can leave them susceptible to
ozone,UV ,heat and other ageing factors that silicone rubber can
withstand well. This makes it one of the elastomers of
choice in many extreme environments. |
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Perfluoroelastomer (FFKM) (Kalrez)
Commonly referred to as Kalrez this expensive
elastomer type is usually produced as a terpolymer of
tetrafluoroethylene, a cure site monomer used for
cross-linking.
Due to the complete fluorination of the
polymer backbone, these premium material exhibit almost
universal chemical resistance.
Depending on the compound ingredients employed
for cross-linking, these material may also offer the
ultimate in heat resistance. |
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1 Hossen
Basha EL Meamary ST, KASR EL NILE –
CAIRO-Egypt
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HEAD OFFICE |
6th Of October City - 6th Industrial zone
- Section 72 |
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FACTORY |
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Fax: (202)
25788393 - 35400455 |
Tel.: (202)
25788393 - 35400382 |
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FOLLOW US |
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E.mail :
info@tistam.com |
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The Site is Designed by |
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