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Precision Polymer Engineering Q75B Polyurethane Rubber

Category Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane, Elastomer, Unreinforced , 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
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Material Notes:
Sulphur cured, Polyurethane Rubber, 65-75 °IRHD. Polyester-based urethane. To meet ASTM line call-out M5BG728, B14, EO14, EO34. ASTM & ISO designation = AU.Applications: Excellent abrasion resistance and tensile strength, with fluid compatibility approaching that of NBR. Polyurethane seals provide outstanding performance in hydraulic systems, which are prone to abrasive contamination and high shock loads. Good resistance to weathering and ozone but poor against water and high temperature.
Mechanical Properties Metric English Comments
Hardness, Shore A 70
70
°IRHD; ASTM D1415
85
85
°IRHD, +15 change after 70 hours @ 100°C; ASTM D1415
Tensile Strength, Yield 22.4 MPa
3250 psi
-20% change after 70 hours @ 100°C; ASTM D412
28.0 MPa
4060 psi
ASTM D412
Elongation at Break 240 %
240 %
-40% change after 70 hours @ 100°C; ASTM D412
400 %
400 %
ASTM D412
Compression Set 25 %
25 %
70 hours @ 100°C; ASTM D395
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 100 °C
212 °F
Minimum Service Temperature, Air -35.0 °C
-31.0 °F
Non-brittle after 3 minutes
-30.0 °C
-22.0 °F
Flash Point >= 204 °C
>= 399 °F
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