Rubber Gaskets
Gaskets are mechanical seals that prevent leaks between separate substrate sections. Many types of synthetic rubbers are used to manufacture rubber gaskets, primarily due to the multitude of different environments faced by different applications.
Nitrile (Buna-N) Gasket Material specifications:
Polymer: Nitrile-Butadiene
ISO/ASTM Designations: NBR
Durometer Rating (hardness): 60
Temperature Range: -30°F to +200°F
Elongation: 350%
Tensile Strength: 1000 PSI
Black Viton® Sheet specifications:
Polymer: Hexaflouropropylene Vinylidene Flouride
ISO/ASTM Desgination: FKM
Durometer Rating (hardness): 75 (Shore A)
Temperature Range: -18°F to +400°F
Elongation: 200%
Tensile Strength: 1000 PSI
Specifications of the EPDM rubber sheet available:
Polymer: Ethylene-Propylene-Diene-Monomer
ISO/ASTM Desgination: EPDM
Durometer Rating (hardness): 40, 60, 70
Temperature Range: -40°F to +225°F
Elongation: 350%
Tensile Strength: 1100 PSI
Silicone Gasket Sheet specifications:
Polymer: Polydimethysiloxane
ISO/ASTM Designation: FE
Durometer Rating (hardness): 30, 40, 50, 60, 70, 80
Temperature Range: -94°F to +392°F
Elongation: 300%
Tensile Strength: 1100 PSI
Neoprene rubber sheet, roll, & slab material specs:
Polymer: Chloroprene Rubber
ISO/ASTM Designation: CR
Durometer Rating (hardness): 40, 50, 60, 70, 80
Temperature Range: -20°F to +180°F
Elongation: 350% – 400%
Tensile Strength: 900 – 1000 PSI