|
|
Polymer
|
Hardness
|
Temperature
|
General Properties
|
|
NR
SBR
BR
IR
|
Natural Rubber
Styrene Butadiene
Polybutadiene
Polyisoprene
|
25-90
65-85 Shore D
1-30 P&J
|
Max. 80 °C
Max. 100 °C
|
Elasticity, abrasion
and tear resistance, shock absorption
Food grade compounds
Ebonites
|
|
CR
|
Polycholoprene
|
15-90
|
Max. 120 °C
|
Abrasion and tear
resistant
Oil - and solvent
resistant
|
|
NBR
XNBR
HNBR
|
Butadiene acrylonitrile
Modified nitrile
Modified nitrile
|
25-95
03-78 P&J
70-90
70-90
|
Max. 110 °C
Max. 120 °C
Max. 150 °C
|
Good general resistance
Oil, grease and
solvent resistant
Food grade compounds
Ebonites
Excellent abrasion
resistance
Excellent physical
properties
|
|
CSM
|
Chlorosulphonated
Polyethylene
|
55-95
|
Max. 135 °C
|
Excellent resistance
to acids,
Bases and ozone
Excellent abrasion
resistance
|
|
IIR
|
Isobutylene-isoprene
(butyl)
|
50-70
|
Max. 140 °C
|
Excellent chemical
resistance to acids,
Bases, oxidants,
ozone
Cetonic solvents
and esters, lacquer and varnish - Gas-proof
|
|
EPDM
|
Ethylene-propylene-terpolymer
|
30-90
|
Max. 140 °C
(170 °C)
|
Excellent chemical
resistance to acids,
Bases, oxidants,
ozone, cetonic
solvents and esters,
lacquer and varnish UV-resistant
|
|
Q
|
Silicone
Silicone HT
Food grade Silicone
|
40-80
|
Max. 220 °C
Max. 280 °C
|
Non-adhesive, ozone
resistant, high electrical insulation
|
|
PNR
|
Polynorbornene
|
15-40
|
Max. 90 °C
|
Elasticity, shock
absorbent,
Good oil resistance
at low temperatures
|
|
FKM
|
Fluoro-elastomers
|
60-90
|
Max. 200 °C
(260 °C)
|
Resistant to ozone,
Aromatic and other
solvents and acids
|
|
ACM
|
Pplyacrylate
|
80
|
Max. 170 °C
|
Good oil resistance
|
|
T
|
Thiokol
|
60
|
Max. 70 °C
|
Resistant to aromatic
and
chlorinated and
to xylene
|