Elastomers

Elastomers or rubbers are amorphic polymers with crosslinked linear chain molecules that ensures elasticity and the return of the material to its original shape when load is removed.

Elastomers Properties

Elastomers or rubbers are amorphic polymers with crosslinked linear chain molecules that ensures elasticity and the return of the material to its original shape when load is removed.

Typical properties for some of the most commonly used elastomers:

Elastomer TypeChemical NameApplicationsShore HardnessTemperature Range (°C)
PolyisopreneNR (Natural Rubber)Vehicle tyres, tubes, seals, antivibration mountings, hoses, belts30 - 90-55 to 85
Styrene butadiene rubbersSBR, GRS, BUNA SVehicle tyres, tubes, seals, antivibration mountings, hoses, belts40 - 80-50 to 82
PolybutadieneBR (Butadiene rubber)Vehicle tyres, tubes, seals, antivibration mountings, hoses, belts40 - 90-100 to 90
Isobutylene isopreneGR 1 (Butyl rubber)Puncture-proof tyres, tubes, vacuum seals40 - 90-45 to 150
Butadiene acroylonitrileBUNA (Nitrile rubber)O-rings, seals, petrol hoses, fuel pumps40 - 95-55 to 82
PolychlorpreneNeoprene (Chloroprene)Diving suits30 - 50-40 to 115
PolyurethanePolyurethane rubberWear resistant applications35 - 100-50 to 115