Westlake Kynar® 740

About
Manufactured from Kynar® polyvinylidene fluoride resin. This material offers excellent corrosion and chemical resistance at both ambient and elevated temperatures. PVDF is also inherently UV stable, mechanically tough, abrasion and flame resistant. Applications Include: Chemical Process/Storage Fluid handling Semiconductor equipment Fire-safe componentry DI Water Systems Advantages of Kynar: High purity Flame resistant Easy to machine Excellent weatherability Resin meets the requirements of FDA, USDA, USPXX Class VI, 3A, UL, V-0, FM 4910&&

Product Description
SupplierWestlake Plastics
GenericPVDF
Material StatusCommercial: Active
FeaturesWeather resistance is good,Good flexibility,High purity,Machinable,Corrosion Resistant,Flame Characteristics,Good wear resistance,Solvent resistance,V-0
AvailabilitysNorth America

Technical Data
PHYSICALNominal valueUnitTest method
Density1.78g/cm³ASTM D792
Water absorption rate
24hr0.030%ASTM D570

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch160J/mASTM D256
Notched impact strength of cantilever beam1100 to 4300J/mASTM D256

THERMALNominal valueUnitTest method
Hot deformation temperature ASTM D648
0.45 MPa, unannealed125 to 140ASTM D648
1.8 MPa, unannealed110ASTM D648
Continuous use temperature138
Melting temperature168ASTM D4591
Linear coefficient of thermal expansion
MD1.2E-41/℃ASTM D696

Electrical performanceNominal valueUnitTest method
Volume resistivity2.0E+14ohms·cmASTM D257
Dielectric strength
0.127 mm63kV/mmASTM D149
Dielectric constant
1 kHz8.50 ASTM D150

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant levelV-0 UL 94
Extreme oxygen index43%ASTM D2863

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s D77 ASTM D2240
Tensile modulus1720MPaASTM D638
tensile strength
yield48.3MPaASTM D638
Tensile strain ASTM D638
yield7.0 to 13%ASTM D638
fracture100%ASTM D638
Bending modulus2000MPaASTM D790
bending strength55.2MPaASTM D790

Notes
1. Typical properties: these are not to be construed as specifications.
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