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Precision Polymer Engineering S70H Silicone Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE) , Silicone
Manufacturer Precision Polymer Engineering Limited
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Precision Polymer Engineering S70H Silicone Rubber.pdf
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Material Notes:
White Silicone Rubber, 68-78 °IRHD. Silicone rubber having both methyl and vinyl substituent groups on the polymer chain. Formulated using only those ingredients determined by the United States Federal Food and Drug Administration (FDA). Water and n-Hexane extraction tested in accordance with Code of Federal Regulations Title 21 (CFR21), Section 177.2600. Formulated to BS2494 Type ‘W’ and Water Research Council (WRC) tested in accordance with BS6920 (WRC approval 9910521).‘Items which have passed full tests of effects on water quality’ (for use in potable water applications). Also complies with the requirements of USP 25, NF20, 2002, Class 6. ASTM & ISO designation = VMQ.Applications: Excellent heat resistance and low temperature flexibility. Used primarily for dry heat static seals. Low physical strength and poor abrasion resistance prevents dynamic sealing.
Mechanical Properties Metric English Comments
Hardness, Shore A 77
77
°IRHD; ASTM D1415
72 - 82
72 - 82
°IRHD, ±5 change after 168 hours @ 70°C; ASTM D1415
Tensile Strength, Yield 9.00 MPa
1310 psi
ASTM D412
7.20 - 10.8 MPa
1040 - 1570 psi
±20% change after 168 hours @ 70°C; ASTM D412
Elongation at Break 350 %
350 %
ASTM D412
245 - 455 %
245 - 455 %
±30% change after 168 hours @ 70°C; ASTM D412
Compression Set 20 %
20 %
24 hours @ 70°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
Descriptive Properties Value Comments
Extraction Test, 21 CFR 177.2600 pass
Distilled Water
pass
n-Hexane
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