For details regarding each rubber click on the particular link or for a detailed comparison chart click here.
  NR SBR

CR

 EPDM NBR FPM Silicone
Hardness scale 30-90 30-90 35-90 30-90 40-90 60-90 30-80
Tensile strength max Mpa 30 20 20 18 25 16 18
Break elongation max % 800 600 900 800 900 400 800
Max cont. operation temp 80 100 120 140 120 250 250
Cold resistance -70 -60 -40 -60 -40 -40 -80
Remaining deformation VG VG VG VG VG VG VG
Resistance to wear E E VG G VG G NG
Tear resistance E G VG G VG G NG
Elasticity E G VG G G NG VG
Petrol and oil resistance B B G B E E NG
Weather- and ozone resistance G G VG E NG E E
Resistance against acid solution G G G VG B E NG
Resistance against hydrolysis, diluted alkali VG VG VG 5 VG E B
Resistance against aliphatic hydrocarbon NG NG G NG VG E G
Resistance against aromatic hydrocarbon B B G B G E B
Resistance against ketone G G G E B NG B
Gas permeability G G VG NG G E B
E = excellent NR = Natural rubber NBR = = Nitrile-Butadiene rubber
VG = very good SBR = Styrene-Butadien rubber FPM = Hypalon rubber
G = good CR = Chloropren rubber, Neoprene Silicone = Silicone rubber
NG = not so good  EPDM = Ethylene-Propylene Diane Monomer  
B = bad