BJB Polyurethane TC-8764 A/B

About
TC-8764 A/B is a two-component urethane casting compound that is specifically formulated for high abrasion and impact resistance. It is recommended for use for the production casting of highly wear-resistant parts and linings. This product is a safe, easy-to-handle, room temperature mixing and curing system that does not contain TDI, MDI, MDA or MOCA. TC-8764 A/B is relatively insensitive to typical environmental moisture and will make good void-free parts without the problems that some conventional urethane systems exhibit. Because of this products exceptional toughness and abrasion resistance, castings made with TC-8764 A/B are particularly suitable for mining and mineral process industries.&&

Product Description
GenericTSU
Material StatusCommercial: Active
FeaturesGood flexibility,High impact resistance,Good wear resistance
AvailabilitysNorth America

Technical Data
PHYSICALNominal valueUnitTest method
Density 
1.09g/cm³
1.13g/cm³ASTM D792
1.14g/cm³
Specific volume0.903cm³/g
Shrinkage rate
MD0.90%ASTM D2566
colour 
Part APale Yellow 
Part BAmber 

elastic bodyNominal valueUnitTest method
tear strength89.3kN/mASTM D624

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch> 530J/mASTM D256

THERMALNominal valueUnitTest method
Thermosetting components 
Component A按重量计算的混合比: 100, 按容量计算的混合比: 100 
Component B按重量计算的混合比: 50, 按容量计算的混合比: 48 
Storage period
24℃26wk

Thermosetting mixed viscosityNominal valueUnitTest method
25℃1550cP
25℃2750cP
25℃250cP
stripping time
25℃120 to 180min
Post curing time
25℃120 to 170hr
Gelation time15.0 to 20.0min
working hours
25℃10.0 to 15.0min

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s D58 to 62 ASTM D2240
Tensile modulus283MPaASTM D638
tensile strength30.3MPaASTM D638
Tensile strain
fracture310%ASTM D638
Bending modulus267MPaASTM D790A
bending strength9.86MPaASTM D790-A

Notes
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