DuPont Teflon® PTFE Grade 640 Resin for Lubricated Paste Extrusion
Subcategory: Fluoropolymer; Thermoplastic; PTFE
Close Analogs: Data provided by the manufacturer.
Key Words: Polytetrafluoroethylene; DuPont Fluoroproducts
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:
| Available Properties |
- Specific Gravity
- Bulk Density
- Water Absorption
- Particle Size
- Hardness, Shore D
- Tensile Strength, Ultimate
- Elongation at Break
- Flexural Modulus
- Coefficient of Friction
- Izod Impact, Notched
- Volume Resistivity
- Surface Resistivity per Square
- Dielectric Constant
- Dielectric Strength
- Dissipation Factor
- Arc Resistance
- Melting Point
- Flammability, UL94
- Oxygen Index
- Drying Temperature
- 20% Hydrochloric Acid Transmission, g/100sq in.
- 50% Sodium Hydroxide Transmission, g/100sq in.
- Acetic Acid Transmission, g/100sq in.
- Acetone Transmission, g/100sq in.
- Acetophenone Transmission, g/100sq in.
- Benzene Transmission, g/100sq in.
- Carbon Tetrachloride Transmission, g/100sq in.
- Chemical/Solvent Resistance
- Detergent Resist. on grit-blasted aluminum, Hours
- Detergent Resistance on aluminum, Hours
- Detergent Resistance on grit-blasted steel, Hours
- Etyl Acetate Transmission, g/100sq in.
- Folding Endurance, # cycles, .18-.20 mm
- Heat of Combustion J/g
- Hexane Transmission, g/100sq in.
- Piperidine Transmission, g/100sq in.
- Red Fuming Nirtric Acid Transmission, g/100sq in.
- Rheometer Pressure, Mpa
- Salt Spray Resistance on aluminum, Hours
- Salt Spray Resistance on steel, Hours
- Sulfuric Acid Transmission, g/100sq in.
- Water Transmission, g/100sq in.
- Weather Resistance
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| Property Data |
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