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Teflon® AF Processing

Teflon® AF is easier to process than other fluoropolymers

It is mechanically stiff over a broad temperature range and has a low cold flow. Because Teflon® AF has limited solubility in perfluorocarbon solvents, it can be cast into thin-film, pinhole-free coatings, with no sintering, and only low heat needed to drive off residual solvent. It also can be applied using spin, spray, brush, or dipping techniques.

Teflon® AF can be molded at relatively low temperatures by extrusion, pressing, or injection molding, in typical fluoropolymer molding equipment. In addition, it can be dissolved in selected perfluorinated solvents for the production of highly uniform thin films and coatings through spin coating and other techniques.

Typical molding temperatures range from 240° to 275°C (464° to 527°F) for Teflon® AF 1600 and 340° to 360°C (644° to 680°F) for Teflon® AF 2400. Avoid processing above 360°C (680°F), the temperature at which the polymer begins to decompose. Corrosion-resistant tooling is recommended.

DuPont will also tailor development resins for specific and unique combinations of properties, based on your design needs.

Additional processing information:

DuPont™ Teflon® AF: Processing and Use [.pdf] Processing Guide: Making Solutions of DuPont™ Teflon® AF [.pdf]  Adhesion Information for DuPont™ Teflon® AF [.pdf]