PHYSICAL PROPERTIES OF RUBBER MATERIALS

SILICON RUBBER
Silicon have exceptional heat to Silicon passes excellent resistant & comp resistance to temperature extremes. Flexibility below - 1750 F. the maximum temperature at which silicones are recommended for continuous service in dry air is 4500 F.

VITON RUBBER
Viton is the most significant single elastomer. Its working temperature range is 200 F to +4000 F. it has been known to Seal at 6500 F in some specific applications.

HYPELONE RUBBER
Hypolone is useful to over a temperature range of 650 to 2500F. But its mechanical properties, compression and permanent set characteristics are less than desired for both dynamic and static sealing applications.

NEOPRENE RUBBER
Neoprene can be compounded for service at temperatures of 650 F to +3000 F. Most elastomers are either resistance to deterioration from exposure to petroleum lubricants or oxygen.An ASTM-specified oil resistance level based on an ASTM test.

NITRILERUBBER
Nitrile is excellent resistance to Petroleum product and its ability to be compounded for service over a temperature range of 650 to +2500F Nitrile is the most widely used elastomer in the seal Industry today. An ASTM-specified oil-resistance level based on an ASTM test (e.g. oil swell)

STYRENE BUTADINE RUBBER (SBR)
SBR Rubber is probably best known under its old destination buna S or GRS (Government Rubber Styrene) which refers to the rubber originally made during world war II in United States Government owned plants as a substitute for natural Rubber. SBR and natural rubber account for approximately 90% of total world rubber consumption. SBR is commonly recommended for automotive brake fluid alcohol and water.

EPDM RUBBER
EPDM is an elastomer prepared from ethylene and propylene monomer and at times with a small amount of a third monomer. It has won broad acceptance in the sealing world because of its excellent resistance to skydrol and other phosphate ester type hydraulic fluids. EPDM has a temperature range of 650 to +3000 F for most applications.

NATURAL RUBBER
Natural rubber is found in the juices of many plants including the shrub quayule, Russian dandelion, galdenrod and dozens of other shrubs vines and trees. The principal source is the tree heavier prasiliensis which is native to Brazil, Petroleum oil are the greatest enemy of natural rubber compounds commonly recommended for Automotive break fluid.