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Precision Polymer Engineering R70D Natural Rubber

Category Polymer , Thermoset , Rubber or Thermoset Elastomer (TSE)
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 R70D Natural Rubber.pdf
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Material Notes:
Natural Rubber, 65-75 °IRHD. Formulated to Defence Standard 93-30, Type QX, Grade 70 (NRQX70).Applications: Natural rubber offers low compression set, high tensile strength, high resilience and excellent resistance to tear and abrasion. The designation `Type QX` indicates that the material is suitable for certain applications where a high degree of compatibility with explosives is a requirement. However, compatibility with all explosives in all environments has not been established and design authorities should seek advice on particular applications from the Director, Defence Research Agency (Military Division), Fort Halstead, Sevenoaks, Kent, TN14 7BP.
Mechanical Properties Metric English Comments
Hardness, Shore A 70
70
°IRHD; ASTM D1415
70 - 74
70 - 74
°IRHD, -0/+4 change after 168 hours @ 70°C; ASTM D1415
Tensile Strength, Yield 10.2 MPa
1480 psi
-15% change after 168 hours @ 70°C; ASTM D412
12.0 MPa
1740 psi
ASTM D412
Elongation at Break 255 %
255 %
-15% change after 168 hours @ 70°C; ASTM D412
300 %
300 %
ASTM D412
Compression Set 35 %
35 %
24 hours @ 70°C; ASTM D395
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 100 °C
212 °F
Minimum Service Temperature, Air -50.0 °C
-58.0 °F
Flash Point >= 300 °C
>= 572 °F
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