Chemours Teflon® PTFE 640 Resin for Lubricated Paste Extrusion

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Chemours Teflon® PTFE 640 Resin for Lubricated Paste Extrusion (discontinued **)
Categories:	Polymer; Thermoplastic; Fluoropolymer; Polytetrafluoroethylene (PTFE); Polytetrafluoroethylene (PTFE), Extruded
Material Notes:	Available in white powder, often called "fine powder," this fluoropolymer resin is capable of being sheared by lubricated paste extrusion (facilitated by a hydrocarbon liquid) into a coherent fibrous matrix with useful structural integrity. Teflon® PTFE fine powders provide a practical method for producing long lengths of product from a resin that cannot be melt extruded. Resin Characteristics: High reduction ratio; low pressure resin. Uses: Wire and cable coating; spaghetti tubing. Typical properties for Teflon® PTFE Fine Powder: Chemours was formed from former DuPont performance chemicals businesses, including DuPont Fluoroproducts, in 2015.
Key Words:	Polytetrafluoroethylene
Vendors:

Available Properties

Specific Gravity, ASTM D4895
Bulk Density, ASTM D4895
Water Absorption, ASTM D570, 24 hours
Particle Size, ASTM D4895
Hardness, Rockwell R, ASTM D785
Hardness, Shore A, ASTM D2240
Hardness, Shore D, ASTM D2240
Tensile Strength, Ultimate, ASTM D1457, 1708, 638
Elongation at Break, ASTM D 1457, 1708, 638
Flexural Modulus, ASTM D790
Poissons Ratio, approaches a limit of 0.50 at higher temperature
Izod Impact, Notched, ASTM D256
Coefficient of Friction, ASTM D 1894
Coefficient of Friction, Dynamic, V = 10 fpm; P= 800 - 1000 psi
Coefficient of Friction, Dynamic, V = 100 fpm; P= 80 - 100 psi
Coefficient of Friction, Static, 500 psi
K (wear) Factor, unlubricated vs. soft carbon steel
Limiting Pressure Velocity, at 10 fpm
Limiting Pressure Velocity, at 100 fpm
Limiting Pressure Velocity, at 1000 fpm
Taber Abrasion, mg/1000 Cycles, 1000 cycles; CS-17F wheel
Volume Resistivity, ASTM D257
Surface Resistivity per Square, ASTM D257
Dielectric Constant, ASTM D150
Dielectric Strength, ASTM D149, 100 micrometers film
Dissipation Factor, ASTM D150
Arc Resistance, ASTM D495
CTE, linear
CTE, linear
CTE, linear
CTE, linear, Large volume change in the 18-25°C transition range
Specific Heat Capacity
Specific Heat Capacity
Specific Heat Capacity
Specific Heat Capacity
Thermal Conductivity
Melting Point, ASTM D1458
Maximum Service Temperature, Air, retains useful mechanical properties
Minimum Service Temperature, Air, retains useful mechanical properties
Minimum Service Temperature, Air, remains highly flexible
Flammability, UL94
Oxygen Index, ASTM D2863
Processing Temperature, Cure Temperature

Property Data

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Manufacturer Notes:
Chemours, former DuPont

Category Notes
Plastic

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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