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BCC Products BC 8690E Polyurethane Elastomer

Category Polymer , Thermoset , Polyurethane, TS , Thermoset Polyurethane, Elastomer, Unreinforced , Rubber or Thermoset Elastomer (TSE)
Manufacturer BCC Products
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF BCC Products BC 8690E Polyurethane Elastomer.pdf
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Material Notes:
BC 8690E is a two-component urethane elastomer compound specifically designed for casting applications. This product is a safe, easy-to-handle, room temperature mixing and curing system that contains no TDI, MDA or MOCA. BC 8690E is insensitive to moisture during storage and normal handling; hence, this system will make dependably good void-free parts without the foaming problems that some conventional urethane systems exhibit. The low shrinkage, low viscosity, superior toughness, and excellent detail reproduction of BC 8690E makes this system ideal for general purpose castings and quality tooling operations. Uses: mold Fabrication, shock absorbent pads & liners, adhesive for high strength and resilient bonds, and many types of urethane rubber parts.Information provided by BCC Products, Inc.
Physical Properties Metric English Comments
Specific Gravity 1.07 g/cc
1.07 g/cc
Brookfield Viscosity 2500 cP

@Temperature 23.9 °C
2500 cP

@Temperature 75.0 °F
mixed
Linear Mold Shrinkage 0.0025 cm/cm
0.0025 in/in
Mechanical Properties Metric English Comments
Hardness, Shore A 85 - 90
85 - 90
Tensile Strength, Ultimate 18.6 MPa
2700 psi
Elongation at Break 550 %
550 %
Tear Strength 68.4 kN/m
390 pli
Processing Properties Metric English Comments
Cure Time 240 - 360 min
4.00 - 6.00 hour
demold time
4320 - 7200 min
72.0 - 120 hour
full cure
Pot Life 20 min

@Temperature 25.0 °C
20 min

@Temperature 77.0 °F
work life (100g)
30 min

@Temperature 25.0 °C
30 min

@Temperature 77.0 °F
gel time (180g)
Descriptive Properties Value Comments
Mix Ratio 100:55 by weight, 185:100 by volume (resin/hardener)
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