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Saint-Gobain COHRlastic® 300 General Purpose Silicone Solid Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone
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® 300 General Purpose Silicone Solid Rubber.pdf
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Material Notes:
Description: COHRlastic® solid silicone rubber in square sheet and continuous length form has a smooth, blemish-free surface. It is available in degrees of hardness from relatively soft 30 durometer to the relatively hard 70 durometer on the Shore A scale. It is manufactured in different formulations to provide a choice of physical properties and cost considerations. Series 300-700: COHRlastic general-purpose molded sheet is available in thicknesses up to 1/2" and it withstands temperatures from -100°F to +500°F. RED in color.All data based on a 0.25 inch test sample.(Also comes in 0.5" thickness. +/-0.031" tolerance.) Information provided by Saint Gobain Performance Products.
Mechanical Properties Metric English Comments
Hardness, Shore A 25 - 35
25 - 35
Increases by 5 after dry heat aging for 70 hrs at 437°F.; ASTM D2240
Tensile Strength, Yield 5.52 MPa
800 psi
Tensile strength decreases by 15% after dry heat aging for 70 hrs at 437°F.; ASTM D412
Elongation at Break 550 %
550 %
Elongation properties decrease by 15% after dry heat aging for 70 hrs at 437°F.; ASTM D412
Tear Strength 8.77 kN/m
50.0 pli
Initial Tear Strength; ASTM D624
Compression Set 15 %

@Temperature 160 °C
15 %

@Temperature 320 °F
Constant Deflection, 70 hrs.; ASTM D395
Thermal Properties Metric English Comments
CTE, linear 270 µm/m-°C

@Temperature 20.0 °C
150 µin/in-°F

@Temperature 68.0 °F
Specific Heat Capacity 1.26 J/g-°C
0.300 BTU/lb-°F
Thermal Conductivity 0.187 W/m-K
1.30 BTU-in/hr-ft²-°F
Electrical Properties Metric English Comments
Dielectric Strength 19.7 kV/mm
500 kV/in
Descriptive Properties Value Comments
Color Red
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