Great India Plastics

Teflon, technically known as Polytetrafluoroethylene (PTFE), is a high-performance engineering plastic known for its exceptional chemical resistance and non-stick properties. Here are the key technical details and specifications for Teflon (PTFE) sheets: 1. Key Physical Properties • Temperature Range: One of the most stable plastics, capable of operating from -200°C to +260°C. • Chemical Resistance: Nearly inert; it resists almost all chemicals, including strong acids and alkalis (except for molten alkali metals and certain fluorine compounds). • Coefficient of Friction: Extremely low (the third-lowest of any known solid material), making it highly "slippery." • Electrical Insulation: High dielectric strength, making it an excellent insulator for high-frequency electronics. • Water Absorption: Zero. It is completely hydrophobic. 2. Common Available Sizes Teflon sheets are typically manufactured in two forms: Skived (thin rolls) and Molded (thick plates).

PTFE Skived Sheets (often referred to as Teflon Tape or Film) are manufactured by "shaving" a thin layer from a large molded cylinder of PTFE. This process allows for much thinner and more flexible material compared to molded plates. Technical Specifications • Standard Thickness: Available from 0.05 mm to 3.0 mm. • Standard Widths: Common widths include 300 mm, 600 mm, 1000 mm, and 1200 mm. • Surface Finish: Smooth, non-porous, and naturally white (unless additives are used). • Tolerance: Very high precision in thickness, usually within ±5%. Key Advantages • Flexibility: Unlike rigid molded sheets, skived sheets can be easily wrapped around pipes, rollers, or curved surfaces. • Continuous Length: They can be supplied in long, continuous rolls, which is ideal for lining large tanks or industrial conveyor belts. • Die-Cutting: Their thinness makes them perfect for stamping out high-precision gaskets, washers, and seals. • Dielectric Strength: Excellent for electrical insulation in capacitors and high-temperature wire wrapping. Common Applications 1. Chemical Tank Linings: Used to protect metal surfaces from highly corrosive acids. 2. Heat Sealing: Often used on packaging machines to prevent plastic bags from sticking to the heating bars. 3. Electrical Insulation: High-frequency insulation for aerospace and telecommunications components. 4. Mechanical Shims: Used as low-friction spacers in machinery. Available Variants