pigmented powder coating products based on low melting point fluorine - based terpolymers , preferably on those made from a majority of vinylidene fluoride copolymerized with tetrafluoroethylene and hexafluoropropene , are capable of providing coatings with controllable gloss properties . the process for preparing coatings from the powders is essentially characterized by the selection of the temperature at which the desired gloss can be obtained , from low to high , without degradation of the mechanical properties .