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.
|Polymer Type||Red Rubber SBR|
|Hardness (Shore A) ± 5||75|
|Temperature||-25°C to 80°C (-10°F to 180°F)|
|Tensile Strength, lbs/in²||600|
|Elongation minimum, %||100|
|Impermeability to Gases||Poor|
|Resistance to Dilute Acid||Fair|
|Resistance to aromatic hydro-carbons||Poor|