DeWAL DW 203

About
D/W 203 is an unsintered PTFE (Polytetrafluoroethylene) film used primarily for electrical insulation, particularly for wire and cable applications. The polymer is fibrilated giving good strength in the machine direction. It has the inherent benefits of PTFE: exceptional chemical resistance, extreme temperature range from 450F to +500F, low coefficient of friction, excellent drape characteristics and non-stick properties. D/W 203 is used in cable insulation, harness wrap, and as the dielectric medium in coaxial cables. Once sintered, it seals completely to provide excellent electrical insulating properties, unsurpassed chemical resistance and excellent thermal resistance. DeWAL’s unsintered PTFE tape has good drape characteristics allowing it to conform smoothly to complicated shapes. D/W 203 can be used for gaskets, expansion joints, valve seals and diaphragm applications. It is available unpigmented and pigmented to match EIA colors. It has good strength after sintering and is used where chemical inertness and high temperature resistance are needed.&&

Product Description
GenericPTFE
Material StatusCommercial: Active
FeaturesGood Rigidity,No viscosity,Low coefficient of friction,High Heat Resistance,Solvent resistance,Insulation
AvailabilitysNorth America,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density1.50g/cm³
Thickness50.8 to 508.0µm

filmNominal valueUnitTest method
tensile strength ASTM D882
MD, yield, 51 µ m12.4MPaASTM D882
MD, yield, 130 µ m10.3MPaASTM D882
Tensile strain
MD, fracture30%ASTM D882

Supplementary informationNominal valueUnitTest method
Base materialExtruded PTFE Film 
Core ID7.62cm
Maximum Roll OD279mm
Width12.7 to 279mm

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