Andur 720 DP/Curene® 442

About
Andur 720-DP is the result of several years of research to develop a high performance, moderate cost prepolymer for the cast urethane industry. This new product is a poly-ester/ether, toluene diisocyanate-terminated prepolymer. An elastomer with a hardness of 70 Shore D is obtained by reaction with various polyols and their combination with Curene 442 and other diamine curatives.&&

Product Description
GenericPUR-酯/醚+TDI
Material StatusCommercial: Active
FeaturesHydrolysis stability,Solvent resistance
AvailabilitysNorth America

Technical Data
PHYSICALNominal valueUnitTest method
Density1.20g/cm³ASTM D1505

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s D71 ASTM D2240

elastic bodyNominal valueUnitTest method
tensile strength
yield52.4MPaASTM D412
100% strain33.1MPaASTM D412
Tensile strain
fracture240%ASTM D412
Compression deformation36%ASTM D395B
Basho’s elasticity45%ASTM D2632

THERMALNominal valueUnitTest method
storage stability2.5min
stripping time
100℃25min
Post curing time
100℃16hr

Notes
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