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Solid Rubber Elastomeric Materials
The following table is an introduction to our more standard materials.
| Elastomer Base | ISO Abbreviation | General Description | |
| Acryl-Nitrile Butadiene | NBR |
Has good mechanical properties including a high wear resistance. NBR is available with varying percentages of Acryl-Nitrile, the higher the content the better the oil and fuel resistance. Conversely the elasticity, compression set and low temp flexibility are adversely affected. Temp range: +100ºC (Short +120ºC) -20ºC (Special -50ºC) |
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Ethylene-Propylene |
EPDM, EPM |
Has good general properties, particularly useful for sealing against hydraulic fluids and Glycol based brake fluids. Temp range: +150ºC (200 in Steam) -50ºC |
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Chloroprene (Neoprene) |
CR |
Has good ozone, ageing, chemical and mechanical properties over a wide temperature range. Temp range: +100ºC (Short +120ºC) –40ºC |
|
| Butyl
|
IIR
|
Has a low gas permeability rate and good electrical insulating properties. Temp range: +130ºC -40ºC |
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Styrol-Butadiene |
SBR |
Predominately used in Tyre production, in seal applications is used for sealing non-mineral oil based brake fluid. Temp range: +100ºC -50ºC |
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|
Silicone |
Q, MQ, MVQ |
In general have good heat resistance, cold flexibility, weathering and electrical insulating. Available in a wide range of compounds including food approved, flame retardant and WRC. Temp range: +210ºC (Special 250ºC) –60ºC (Special –100ºC) |
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Fluorosilicone |
MFQ |
Has very similar properties to Silicone except increased resistance to fuel and mineral oil but with reduced hot air resistance. Temp range: +175ºC (200ºC Max) –50ºC |
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Fluorocarbon (Viton® fluoroelastomers) |
FPM |
Has excellent resistance to high temperatures, ozone, oxygen, mineral oil, synthetic hydraulic fluids, fuels, aromatics and many organic solvents and chemicals. A little let down by its low temp properties. Temp range: +200ºC (Short 220ºC) –25ºC (-40ºC certain applications) |
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The above table highlights our more standard grades available in roll, sheet, and moulded, extruded and finished component. There are several more Elastomeric grades not listed above that are available in varying forms and information on these is available on request.
Below we offer greater depth of information on varying grades, hardness and relevant specifications such as BS, WRC, FDA and Flame retardant. We are in the process of compiling compatibility tables that we hope to list shortly.
NATURAL RUBBER
General Temperature Range -20º + 70ºC. Excellent physical properties including abrasion resistance and low temperature resistance. Resistant also to some organic
solvents and many inorganic salts and acids.
|
Ref No
|
Specification |
Colour |
SG |
Hardness (Shore A)
|
Tensile Strength(MPa)
|
Elongation At Break (%)
|
|
N02 |
Commercial |
Black |
1.50 |
65º |
4 |
250 |
|
N03 |
Food Quality |
White |
1.30 |
50º |
6 |
500 |
|
N04 |
Shotblast |
Black |
1.30 |
60º |
20 |
600 |
|
N06 |
Shotblast Para |
Tan |
1.04 |
45º |
16 |
600 |
Also available in a full range of BS1154 Z & W grades.
NEOPRENE RUBBER (CHLOROPRENE)
General Temperature Range -20º +110ºC. Good strength and abrasion properties flame retardant. Moderate resistance to petroleum based products other than aromatic and halogenated hydrocarbons.
|
Ref No
|
Specification |
Colour |
SG |
Hardness (Shore A)
|
Tensile Strength (MPa)
|
Elongation At Break (%)
|
|
C20 |
Commercial |
Black |
1.45 |
60º |
6 |
320 |
|
C35 |
Commercial |
White |
1.40 |
60º |
8 |
450 |
|
C24 |
BS2752:C40 |
Black |
1.35 |
40º |
12 |
500 |
|
C25 |
BS2752:C50 |
Black |
1.35 |
50º |
13 |
450 |
|
C26 |
BS2752:C60 |
Black |
1.42 |
60º |
13 |
300 |
|
C27 |
BS2752:C70 |
Black |
1.42 |
70º |
13 |
300 |
|
C28 |
BS2752:C80 |
Black |
1.40 |
80º |
13 |
190 |
|
C34 |
Flame Retardant |
Black |
1.40 |
70º |
10 |
300 |
NITRILE RUBBER (ACRILONITRILE BUTADIENE)
General Temperature Range -20º +110ºC. Moderate mechanical properties. Excellent resistance to petroleum based fluids, oils, solvents, greases but only moderate to aromatic hydrocarbons.
|
Ref No
|
Specification |
Colour |
SG |
Hardness (Shore A)
|
Tensile Strength (MPa)
|
Elongation At Break (%)
|
|
A40 |
Commercial |
Black |
1.48 |
70º |
4 |
250 |
|
A41 |
BS2751:BA40 |
Black |
1.20 |
40º |
7 |
600 |
|
A42 |
Food Quality |
White |
1.45 |
65º |
8 |
500 |
|
A43 |
Commercial |
Black |
1.40 |
50º |
4 |
250 |
|
A45 |
BS2751:BA50 |
Black |
1.20 |
50º |
8 |
450 |
|
A46 |
BS2751:BA60 |
Black |
1.32 |
60º |
13 |
500 |
|
A47 |
BS2751:BA70 |
Black |
1.20 |
70º |
15 |
350 |
|
A48 |
BS2751:BA80 |
Black |
1.30 |
80º |
13 |
325 |
E.P.D.M. (ETHYLENE PROPYLENE)
General Temperature Range -50º +150ºC. Excellent ozone chemical and ageing characteristics.
|
Ref |
Specification |
Colour |
SG |
Hardness |
Tensile |
Elongation |
|
No |
(Shore A) |
Strength (MPa) |
At Break (%) |
|||
|
E80 |
Commercial |
Black |
1.40 |
70º |
4 |
200 |
|
E82 |
Portable Water |
Black |
1.12 |
65º |
10 |
400 |
BUTYL (ISOBUTYLENE-ISOPRENE)
General Temperature Range -40º +130ºC. Very good weathering resistance. Low permeability. Poor resistance to petrol.
|
Ref |
Specification |
Colour |
SG |
Hardness |
Tensile |
Elongation |
|
No |
(Shore A) |
Strength (MPa) |
At Break (%) |
|||
|
B70 |
Commercial |
Black |
1.23 |
60º |
8 |
350 |
HYPALON (CHLOROSULPHONATED POLYETHYLENE)
General Temperature Range -35º +140ºC. Excellent resistance to ozone, weather, acids, heat and abrasion. Fair resistance to petroleum based fluids.
|
Ref |
Specification |
Colour |
SG |
Hardness |
Tensile |
Elongation |
|
No |
(Shore A) |
Strength (MPa) |
At Break (%) |
|||
|
H60 |
Commercial |
Black |
1.40 |
70º |
12 |
350 |
VITON
General Temperature Range -40º +220ºC.
|
Ref |
Specification |
Colour |
SG |
Hardness |
Tensile |
Elongation |
|
No |
(Shore A) |
Strength (MPa) |
At Break(%) |
|||
|
V90 |
Commercial |
Black |
2.1 |
75º |
4 |
130 |
|
V95 |
Viton B |
Black |
1.80 |
65º |
10 |
195 |
|
V99 |
Viton A |
Black |
1.86 |
70º |
11 |
200 |
SILICONE
General Temperature Range -70º +250ºC.
|
Ref |
Specification |
Colour |
SG |
Hardness |
Tensile |
Elongation |
|
No |
(Shore A) |
Strength (MPa) |
At Break (%) |
|||
|
S84 |
Commercial |
Any |
1.15 |
40º |
6 |
330 |
|
S86 |
Commercial |
Any |
1.25 |
60º |
7 |
300 |
|
S88 |
Commercial |
Any |
1.35 |
80º |
8 |
280 |