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Abstract

For the coating of plastics with polyvinylidene fluoride, finely divided polyvinylidene fluoride is dispersed in a solvent mixture of (a) at least one high-boiling, organic solvent with a boiling point up to 250.degree. C., which dissolves polyvinylidene fluoride little or not at all, and (b) at least one strongly polar latent organic solvent for polyvinylidene fluoride, the dispersion obtained is dissolved in (c) at least one low-boiling polar organic solvent with a boiling point up to 120.degree. C., the plastic surface is coated with the solution and the latter is baked on at a temperature of 100.degree. to 300.degree. C. A bake-on varnish suitable for the method contains, for example: 3 to 25 wt.-% of polyvinylidene fluoride, 5 to 20 wt.-% of at least one high-boiling organic solvent with a boiling point up to 250.degree. C., 1 to 10 wt.-% of at least one strongly polar latent organic solvent for polyvinylidene fluoride and 60 to 90 wt.-% of a low-boiling polar organic solvent with a boiling point up to 120.degree. C., as well, if desired, as conventional ultraviolet light absorbers and/or additive resins.

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