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Taiwan PU Corporation UR50 Polyester Urethane Rubber

Category Polymer , Thermoset , Polyurethane, TS , Rubber or Thermoset Elastomer (TSE)
Manufacturer Taiwan PU Corporation
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Taiwan PU Corporation UR50 Polyester Urethane Rubber.pdf
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Material Notes:
UR50 is a polyester urethane rubber which is an easy to process millable gum especially developed for improved compounding and processing benefits. It can be processed and compounded by the use of conventional rubber manufacturing equipment and techniques to yield finished urethane parts.Compounds of urethane rubber can be molded by compression, injection, and transfer molding procedures. Excellent mold definition is obtainable in press cures. The linear shrinkage of vulcanizates of UR varies somewhat with the type of loading, but, in general this value is approximately 1.5%, which is comparable to that of neoprene.Excellent mold release is provided by lubricant of M-7 or silicone mold release lubricants, but indiscriminate use can cause poor flow and knitting problems.Information provided by Taiwan PU Corporation.
Physical Properties Metric English Comments
Specific Gravity 1.15 g/cc
1.15 g/cc
Mooney Viscosity 35 - 65

@Temperature 100 °C
35 - 65

@Temperature 212 °F
ML 1-4
Mechanical Properties Metric English Comments
Hardness, Shore A 50
50
Tensile Strength at Break 26.9 MPa
3900 psi
Elongation at Break 700 %
700 %
300% Modulus 0.00331 GPa
0.480 ksi
Tear Strength 31.6 kN/m
180 pli
Die C
Compression Set 49 %
49 %
22 hours at 158°C
Processing Properties Metric English Comments
Processing Temperature 152 - 171 °C
305 - 340 °F
Cure Time 5.00 - 45.0 min
0.0833 - 0.750 hour
Descriptive Properties Value Comments
Color White to cream
Health Hazard None
Odor Faint, characteristic
Physical Form Solid
Storage Stability Excellent
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