Tefzel® HT-2181

About
DuPont™ Tefzel® HT-2181 fluoropolymer resin is a general-purpose resin available in translucent, 2.5-mm (0.1-in) pellets. Compared with other grades of Tefzel® , its most unique features are an intermediate flow rate and a balance of properties that make it suitable for a variety of processes and demanding end uses. Tefzel® HT-2181 and the other Tefzel® fluoropolymers are melt processible, modified copolymers of ethylene and tetrafluoroethylene. They are high-performance resins that can be processed at relatively high rates compared with other fluorocarbon resins. They are mechanically tough and offer an excellent balance of properties. Tefzel® HT-2181 can perform successfully in applications where other thermoplastics are lacking in mechanical toughness, broad thermal capability, ability to meet difficult environmental conditions, or limited by fabricating problems. Properly processed products made from neat Tefzel® HT-2181 are inert to most solvents and chemicals, hydrolytically stable, and weather-resistant. The recommended upper service temperature is 155°C (311°F); useful properties are retained at cryogenic ranges. The level and stability of dielectric properties are excellent, and the flame rating is V-0 by the UL94 method. Mechanical properties include outstanding impact strength, cut-through, and abrasion resistance. Statements, or data, regarding behavior in a flame situation are not intended to reflect hazards presented by this or any other material when under actual fire conditions. Typical End Products Tefzel ® HT-2181 is ideal for many end products, including electrical components, such as sleeving, coil forms, sockets, connectors, and switches; lab ware, such as tubing, valves, containers, and dishes; battery or instrument components that require chemical inertness; chemical service items, such as valve components, seal glands, pipe plugs, and corrugated tubing; and film.&&

Product Description
SupplierChemours
GenericETFE
Material StatusCommercial: Active
FeaturesWeather resistance is good,Good flexibility,High impact resistance,Good Electrical Properties,Hydrolysis stability,Moderate liquidity,Copolymer,Good wear resistance,Solvent resistance,V-0
AvailabilitysNorth America,Latin America,Asia Pacific,Europe
Process MethodsExtrusion

Technical Data
PHYSICALNominal valueUnitTest method
Density1.70g/cm³ASTM D792
Apparent density1.30g/cm³Internal Method
Melt Flow Rate
297℃,5.0kg6.0g/10minASTM D3159
Water absorption rate
24hr7.0E-3%ASTM D570

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s D67 ASTM D2240
tensile strength
23℃40.0MPaASTM D638
Tensile strain
Fracture, 23 ℃300%ASTM D638
Bending modulus
23℃1000MPaASTM D790
compressive strength
23℃17.0MPaASTM D695

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch
23℃No Break ASTM D256

THERMALNominal valueUnitTest method
Melting temperature255 to 280ASTM D3418
Linear coefficient of thermal expansion
MD:0~100℃1.3E-41/℃ASTM D696
Maximum operating temperature155UL 746

Electrical performanceNominal valueUnitTest method
Volume resistivity1.0E+17ohms·cmASTM D257
Dielectric strength
0.25 mm70kV/mmASTM D149
Dielectric constant
23 ℃,1 MHz2.50 to 2.60 ASTM D1531
Dissipation factor
23℃,1 MHz6.0E-3 ASTM D1531
Arc resistance122secASTM D495

FLAME CHARACTERISTICSNominal valueUnitTest method
Flame retardant levelV-0 UL 94
Extreme oxygen index30 to 32%ASTM D2863

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