Our core expertise, and much of the work we do, involves processing of corrosion resistant and high purity fluoropolymers such as PTFE, PFA, FEP, PCTFE and PVDF.
The fluoropolymers industry had its beginnings with PTFE (formerly referred to as TFE) which stands for Polytetrafluoroethylene, the polymer discovered by DuPont in 1938. Since then, other manufacturers entered the market and produce the material under their own trade names. A broad overview of the material can be found in the on-line encyclopedia Wikipedia here
More specific sources of information come from the manufacturers themselves, including:
3M, who manufactures PTFE under the trade name Dyneon™
DuPont, who manufactures PTFE under the trade name Teflon®
Daikin America, who manufactures PTFE under the trade name DAIKIN-POLYFLON™
AGC Chemicals America, who manufacturers PTFE under the trade name Fluon®
Each manufacturer offers PTFE in a variety of formulations generally referred to as "compounds", differing mostly in the size of the raw powdered resin particles and various added fillers. Fillers can be materials such as carbon to increase electrical conductivity (making parts static dissipative) and glass fibers to enhance certain mechanical properties. Of course, there are always trade-offs to consider in that fillers may adversely affect some material properties. Micromold's years of experience can help you intelligently select the best compound for your particular application.
Since PTFE will not flow above its melting point, it cannot be injection molded and requires special processing techniques. Molded PTFE is processed by first compression molding the powder into preforms, and then sintering the preforms in a process analogous to sintered metal processing. This process creates geometric shapes that can then be machined, fused, and/or welded.
Click here for Properties of PTFE - Representative Values