DuPont Teflon® PTFE Grade TE-3823 Aqueous Dispersion

Subcategory: Fluoropolymer; Thermoplastic; PTFE

Key Words: Polytetrafluoroethylene; DuPont Fluoroproducts

Material Notes:
DuPont™ Teflon® PTFE TE-3823 fluoropolymer resin is a negatively charged, hydrophobic colloid, containing approximately 60% (by total weight) of 0.05 to 0.5 µm polytetrafluoroethylene (PTFE) resin particles suspended in water. Seen as a milky white liquid, it also contains approximately 6% (by weight of PTFE) of a non-ionic wetting agent and stabilizer. Viscosity at room temperature is approximately 20 cP (mPa•s). Nominal pH is 10.

DuPont™ Teflon® PTFE TE-3823 is recommended for coating applications on a variety of substrates. It is specifically suited to the processes of roller and curtain coating of metal surfaces.

DuPont™ Teflon® PTFE TE-3823 is based on new and improved DuPont polymer and formulation technologies that ensure higher product quality and processing improvements in various coating applications. The product improvements include higher gloss, mechanical strength and durability, while the processor benefits from improved Critical Cracking Thickness, higher shear stability and sinterability, which lead to improved productivity and yields. In addition, the polymer is formulated with a new nonionic wetting agent which burns off at approximately 50°C (90°) lower than traditional surfactants. This feature translates into another processing advantage due to lower fouling of the coating systems. The final product benefits from improved color.

When properly processed, the PTFE resin in Teflon® PTFE TE-3823 exhibits the superior properties typical of the fluoropolymer resins: retention of properties after service at 260°C (500°F), useful properties at –240°C (–400°F), chemical inertness to nearly all industrial chemicals and solvents, and low friction and antistick surfaces. Dielectric properties are outstanding and stable with frequency and temperature.