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Precision Polymer Engineering S72R 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 S72R Silicone Rubber.pdf
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Material Notes:
Orange Silicone Rubber, 65-75 °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) to be in accordance with Code of Federal Regulations, Title 21 (CFR21), Section 177.2600. 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 70
70
°IRHD; ASTM D1415
60 - 80
60 - 80
°IRHD, ±10 change after 70 hours @ 200°C; ASTM D1415
Tensile Strength, Yield 6.00 MPa
870 psi
-25% change after 70 hours @ 200°C; ASTM D412
8.00 MPa
1160 psi
ASTM D412
Elongation at Break 192.5 %
192.5 %
-45% change after 70 hours @ 200°C; ASTM D412
350 %
350 %
ASTM D412
Compression Set 30 %
30 %
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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