A fluoropolymer coating composition contains a homogeneous mixture of
crystalline submicron fluoropolymer particles dispersed in a
solvent-borne solution of less crystalline or amorphous fluororesin. The
composition may be prepared by blending a latex containing crystalline
submicron fluoropolymer particles with a latex containing less
crystalline or amorphous fluororesin particles, coagulating and drying
the blended latices, and dissolving the dried blend in a solvent for the
fluororesin particles. Quasi-homogenous compositions may be prepared by
blending dry crystalline submicron fluoropolymer particles with a) dry
less crystalline or amorphous fluororesin particles and a solvent for the
fluororesin particles, or b) a solvent-borne solution of less crystalline
or amorphous fluororesin. Rubbing the disclosed coatings can provide a
thin, continuous or nearly continuous fluoropolymer surface layer atop a
less crystalline or amorphous fluororesin binder containing crystalline
submicron fluoropolymer particles.