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Saint-Gobain COHRlastic® CF4420 High Heat Reinforced Solid Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
Manufacturer Saint-Gobain Perfomance Plastics
Trade Name COHRlastic®
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Saint-Gobain COHRlastic® CF4420 High Heat Reinforced Solid Rubber.pdf
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Material Notes:
Description: COHRlastic® CF silicone solid rubber reinforced with fiberglass is a dimensionally-stable, durable material for press pads, belting and gasketing. It is available in six constructions. CF 4420 is specially formulated for thermal stability and long life under extreme heat and pressure for extended dwell times. It resists reversion (i.e. softening and outgassing) longer than general purpose silicone. Throughout its useful life, 4420 has thermal stability for consistent thermal conductivity. All data based on a 0.0625 inch test sample.(Also available in 0.045"; Thickness shown is for silicone rubber. Fiberglass thickness = 0.014".) Information provided by Saint Gobain Performance Products.
Physical Properties Metric English Comments
Volatile Organic Compounds (VOC) Content <= 0.50 g/l
<= 0.50 g/l
Weight Loss (4 hrs at 400°F)
Mechanical Properties Metric English Comments
Hardness, Shore A 74
74
Elongation at Break <= 10 %
<= 10 %
Flexural Strength 3.45 MPa
500 psi
Diaphragm Burst Strength
Tear Strength 52.6 kN/m
300 pli
Thermal Properties Metric English Comments
CTE, linear 270 µm/m-°C

@Temperature 20.0 °C
150 µin/in-°F

@Temperature 68.0 °F
Silicone rubber component
Thermal Conductivity 0.274 W/m-K
1.90 BTU-in/hr-ft²-°F
Electrical Properties Metric English Comments
Dielectric Strength 19.7 kV/mm
500 kV/in
Descriptive Properties Value Comments
Color Brown
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