Commercial |
Acrylic |
Polyboron |
Epichlorohydrin |
Butyl |
Hydrogenated |
Natural |
Acryonitril |
Chloroprene |
Styrene |
Silicone |
EPDM Ethyiene-propylene-diene |
Chlorosulphonated |
Fluorinated |
International
designation |
ACM |
PNR |
ECO |
IIR |
HNBR |
NR |
NBR |
CR |
SBR |
SI |
EPDM |
CSM |
FPM |
Hardness available |
50-80 Shore A |
10-80 Shore A |
50-90 Shore A |
40-85 Shore A |
40-90 Shore A |
25-95 Shore A |
25-95 Shore A |
30-90 Shore A |
35-95 Shore A |
40-80 Shore A |
30-90 Shore A |
50-95 Shore A |
65-90 Shore A |
Resistance to temperatures |
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+ |
+ |
+ |
+ |
+ |
+ |
up to + |
up to + |
up to + |
up to + |
up to + |
up to + |
up to + |
Tensile strength in kp/sq.cm(N/sq.mm) |
160 (16)
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170 (17) |
170 (17) |
170 (17) |
300 (30) |
250 (25) |
250 (25) |
250 (25) |
250 (25) |
80 (8) |
200 (20) |
180 (18) |
200 (20) |
Tensile Elongation in % |
up to 350 |
300 to 700 |
150 to 500 |
400 to 800 |
150 to 600 |
800 |
500 |
450 |
450 |
250 |
450 |
300 |
400 |
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Properties |
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Abrasion |
moderate |
good |
moderate |
good |
very good |
good |
very good |
good |
very good |
moderate |
good |
moderate |
moderate |
Flex cracking resistance |
moderate |
moderate |
good |
moderate |
very good |
good |
moderate |
very good |
good |
bad |
very good |
good |
good |
Flexibility |
low |
as required |
moderate |
slight |
good |
excellent |
good |
good |
good |
good |
good |
good |
moderate |
Notch strength/structure strength |
- |
moderate |
good |
good |
good |
excellent |
good |
good |
good |
moderate |
moderate |
good |
almost good |
Light resistance |
good |
good |
good |
very good |
good |
bad |
bad |
very good |
moderate |
excellent |
excellent |
excellent |
excellent |
Oxidizing resistance |
very good |
good |
good |
very good |
good |
moderate |
moderate |
good |
moderate |
very good |
excellent |
excellent |
excellent |
Ozone resistance |
very good |
good |
very good |
very good |
good |
moderate |
moderate |
very good |
moderate |
excellent |
excellent |
excellent |
excellent |
Wear-and-tear resistance |
good |
good |
- |
good |
good |
very good |
very good |
very good |
very good |
bad |
good |
good |
almost good |
Weathering effect |
very good |
good |
good |
very good |
good |
good |
moderate |
very good |
good |
excellent |
excellent |
excellent |
excellent |
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Resistance
to… |
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Lyes |
not suitable |
moderate |
bad |
very good |
good |
good |
good |
very good |
good |
not suitable |
excellent |
very good |
very good |
Petrol |
not suitable |
not suitable |
good |
not suitable |
good |
not suitable |
excellent |
moderate |
not suitable |
not suitable |
not suitable |
moderate |
excellent |
Benzole |
not suitable |
not suitable |
good |
not suitable |
moderate |
not suitable |
bad |
not suitable |
not suitable |
not suitable |
not suitable |
not suitable |
good |
Foodstuffs * |
not suitable |
not suitable |
not suitable |
suitable |
not suitable |
suitable |
suitable |
suitable |
suitable |
excellently suitable |
suitable |
suitable |
not suitable |
Solvents.aliphatic |
bad |
not suitable |
good |
not suitable |
very good |
not suitable |
very good |
moderate |
not suitable |
not suitable |
bad |
moderate |
very good |
Solvents.aromatic |
bad |
not suitable |
good |
not suitable |
conditional |
not suitable |
conditional |
moderate |
not suitable |
not suitable |
not suitable |
moderate |
good |
Solvents.halogene |
bad |
not suitable |
not suitable |
not suitable |
conditional |
not suitable |
bad |
bad |
not suitable |
not suitable |
not suitable |
moderate |
good |
Oils and greases |
very good |
conditional |
very good |
not suitable |
very good |
not suitable |
excellent |
good |
not suitable |
good |
bad |
good |
good |
Acids |
not suitable |
moderate |
moderate |
very good |
moderate (conditional) |
conditional |
conditional |
good |
conditional |
not suitable |
very good |
very good |
very good |
Water |
good |
excellent |
moderate |
good |
very good |
good |
good |
very good |
very good |
good |
very good |
good |
good |
*
special formulations only |
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The
properties presented hereby are for guidance only, and are affected
by temperature, concentration, etc, in specific applications and cannot
be guaranteed |
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