The 3R820 red rubber is made of a commercial blend of Styrene-Butadiene (SBR). It is also available in a red smooth finish.


It is commonly used as domestic and commercial gaskets for air, hot and cold water and low pressure steam.


Technical Data

Polymer Type Red Rubber SBR
Color Red
Hardness (Shore A) ± 5 75
Temperature -25°C to 80°C (-10°F to 180°F)
Tensile Strength, lbs/in² 600
Elongation minimum, % 100
Compression Set Good
Abrasion Resistance Good
Tear Resistance Fair
Ozone Resistance Poor
Impermeability to Gases Poor
Resistance to Dilute Acid Fair
Resistance to aromatic hydro-carbons Poor
Heat Aging Fair
N.B. The information, details and values indicated are to the best of our knowledge. We recommend to conduct tests according to local conditions. The data is subject to some variations without notice.