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Precision Polymer Engineering S40R Silicone Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone
Manufacturer Precision Polymer Engineering Limited
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Precision Polymer Engineering S40R Silicone Rubber.pdf
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Material Notes:
Red Silicone Rubber, 35-45 °IRHD. Silicone rubber having both methyl and vinyl substituent groups on the polymer chain. ASTM & ISO designation = VMQ.Applications: Excellent heat resistance and low temperature flexibility combined with low compression set performance. Used primarily for dry heat static seals. Low physical strength and poor abrasion resistance prevents dynamic sealing. Although silicone will swell in petroleum lubricants, this is not necessarily detrimental in static sealing applications.
Mechanical Properties Metric English Comments
Hardness, Shore A 40
40
°IRHD; ASTM D1415
Tensile Strength, Yield 7.00 MPa
1020 psi
ASTM D412
Elongation at Break 600 %
600 %
ASTM D412
Compression Set 35 %
35 %
24 hours @ 175°C; ASTM D395
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 250 °C
482 °F
Minimum Service Temperature, Air -60.0 °C
-76.0 °F
-60.0 °C
-76.0 °F
Non-brittle after 3 minutes
Flash Point >= 300 °C
>= 572 °F
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