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Western Rubbers India Pvt. Ltd. has compiled a large collection of technical information as a service to its customers. Please make a selection from the categories below.
 
Relative Material Cost Comparison
Hardness of Rubber Durometer
Rubber Selection Data Chart
Materials
   
Rubber Selection Data Chart
   
- Natural Rubber SBR EDPM Neoprene
CR
Hypalon*
CSM
Nitrile NBR Silicon
Si
Therban
HNBR
Viton*
FPM
Fluoro-Silicon FSi
Cost Factor 1 1 1 2 3 2 6 8 15 40
Hardness Range 30-95° 40-95° 30-85° 30-90° 40-85° 40-100° 40-80° 50-95° 50-95° 40-80°
Colours Full Range Full Range Limited Range Full Range Limited Range Limited Range Limited Range Limited Range Limited Range Limited Range
Heat Resistance (°C)
Maximum Continuous
Maximum Intermittent

75°C
105°C

85°C
115°C

130°C
150°C

95°C
125°C

130°C
160°C

100°C
130°C

205°C
300°C

125°C
160°C

205°C
300°C

180°C
200°C
Low Temperature
Resistance
-60°C -55°C -50°C -40°C -25°C -20°C -60°C
(special grades -80°C)
-30°C -20°C -60°C
Resistances Oxidation
Ozone & Weathering
Fair
Poor
Fair
Poor
Excellent
Outstanding
Very Good
Very Good
Excellent
Outstanding
Good
Fair
Excellent
Outstanding
Excellent
Very Good
Outstanding
Outstanding
Excellent
Outstanding
Oil Resistance
*Astm Oil No.1@20°C
@100°C
*Astm Oil No.3@20°C
@100°C

Poor
Unsatisfactory Unsatisfactory
Unsatisfactory

Poor
Unsatisfactory Unsatisfactory
Unsatisfactory

Fair
Unsatisfactory Unsatisfactory
Unsatisfactory

Excellent
Good
Good
Fair

Excellent
Good
Excellent
Fair

Excellent
Good
Excellent
Good

Excellent
Good
Good
Fair

Excellent
Excellent
Fair
Fair
Excellent
150°C Excellent
Excellent
150°C Excellent
Excellent
150°C Excellent
Excellent
150°C Excellent
Fuel Resistance
*Astm Fuel B @40°C
Unsatisfactory Unsatisfactory Unsatisfactory Poor Poor Fair Unsuitable - Excellent Fair
(good at low temps)
Solvent Resistance 20°C

Alcohol
Acetone
Benzene


Good
Fair
Unsatisfactory


Good
Fair
Unsatisfactory


Good
Good
Unsatisfactory

Good
Fair
Unsatisfac
tory

Good
Fair
Unsatisfac
tory
Good
Unsatisfac
tory
Unsatisfac
tory
Good
Fair
Unsatisfac
tory
Excellent
Good
Fair
Good
Unsuitable
Good
Good
Unsuitable
Good
Chemical Resistance
Acids
Bases


Fair
Good


Fair
Good


Good
Good


Good
Fair


Very Good
Good


Good
Fair


Fair
Fair


Good
Good


Excellent
Good


Good
Fair
Physical Strength Excellent Good Good Good Good Good Poor Good Good Poor
Compression Set Good Good Good Fair to Good Fair Good Fair Good Good Good
Tear & Abrasion
Resistance
Excellent Good Good Good Good Good Poor Very Good Good Poor
Resilience Excellent Good Very Good Very Good Fair Good Good Fair Fair Fair
Permability
to Gas
Poor Fairly Low Fairly Low Low Low Low Fairly Low Good Very Low Fairly Low
Electrical
Strength
Excellent Excellent Excellent Good Good Poor Excellent Poor Good Excellent
Flame Resistance Poor Poor Poor Self- extinguishing Good Poor Good Poor Self- extinguishing Self- extinguishing
Water Resistance Very Good Good Excellent Good Very Good Good Good Very Good Good Good
 
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