RUBBER DESIGN GUIDE



RESISTANCE OF ELASTOMER TO DIFFERENT CONDITIONS
Properties Natural Butyl Nitrile Polychloroprene
(Neoprene)
Hypalon EPDM Floroelastomer
(VITON )
Silicon Polyurethane
Swelling In Lubricating Oil Poor Poor Very Good Good Good to Excellent Poor Excellent Fair Good to Excellent
Oil and Gasoline Poor Poor Excellent Good Good Poor Excellent Fair Good to Excellent
Animal and Vegetable Oils Poor to Good Very Good Very Good Good Good Good Excellent Good to Excellent Good to Excellent
Water Absorption Very Good Very Good Good Good Very Good Very Good to Exc. Very Good Excellent Good at R.T.Poor at 100 ˚C
Oxidation Good Excellent Good Very Good to Exc. Excellent Excellent Outstanding Excellent Excellent
Ozone Poor to Fair Excellent Fair Very Good to Exc. Outstanding Outstanding Outstanding Excellent Excellent
Sunlight Aging Poor Very Good Poor Very Good Outstanding Outstanding Outstanding Excellent Good
Heat aging (upper limit cont. service) 85 ˚C 120 ˚C 115 ˚C 95 ˚C 135 ˚C 145 ˚C 205 ˚C 205 ˚C 85 ˚C
Flame Poor Poor Poor Good Good Poor Excellent Fair to Good Fair (will melt)
Heat Good Very Good Good Very Good Excellent Excellent Outstanding Outstanding Good
Cold Excellent Good Fair to Good Good Good Excellent Good Outstanding Excellent