Cork rubber sheet
Rubber Cork sheet
Rubber cork sheet combines cork compressibility and rubber elasticity for reliable low- and medium-pressure sealing. Ide.....
Rubber cork sheet is a composite sealing material produced by bonding fine granulated cork with synthetic rubber polymers and functional additives. By combining the elasticity of rubber with the compressibility and recovery of cork, this material delivers stable sealing performance under low to medium pressure conditions. It is widely used as a static sealing solution where vibration absorption, dimensional stability, and reliable sealing are required.
Features
Rubber cork sheet offers excellent resilience, allowing it to maintain sealing force even after repeated compression. The cork structure provides controlled compressibility, while the rubber matrix enhances strength, flexibility, and oil resistance. This combination ensures good sealing performance against fluids, moderate internal pressure, and temperature variations. The material also demonstrates effective vibration damping and noise reduction, helping protect equipment and extend service life.
Applications
Rubber cork sheets are widely applied as gasket materials for engines and equipment in automobiles, tractors, ships, industrial plants, and petroleum pipelines. They are also used in transformers, electrical equipment, and mechanical apparatus where static sealing is required. Thanks to their balanced elasticity, compressibility, and oil resistance, rubber cork sheets are well suited for low- and medium-pressure sealing applications in industrial and automotive systems.
PARAMETER:
Item |
Graded by hardness |
|
Hardness: Shore A |
55-70(Medium) |
70-85(Hard) |
Density: g/cm3 |
≤0.9(Medium) |
≤1.05(Hard) |
Tensile Strength: kg/cm2 |
≥15(Medium) |
≥20(Hard) |
Compressibility (% 300psi load) |
15-30(Medium) |
10-20(Hard) |
Sealing Pressure(min) |
28kg/cm2 |
|
Internal Pressure(max) |
3.5kgf/cm2 |
|
Service Temp(max) |
-40~120~150℃ |
|
Rubber Type |
NBR |
|
Cork Granules |
0.25-120mm |
|
