A process for the production of a multilayer protective and/or decorative coating upon a surface of a substrate.

摘要

A process for the production of a multilayer protective and/or decorative coating upon a surface of a substrate, comprises the steps of: applying to the surface a base-coat composition comprising a film forming polymer (A), a volatile organic liquid diluent (B) in which the polymer is dissolved, polymer microparticles (C) which are insoluble in the solution of polymer (A) in the liquid diluent (B) and which are stably disposed by steric stabilisation therein in a non-flocculated state in an amount of from 3% to 8% of the aggregate weight of the polymer (A) and the microparticles (C), and pigment particles (D) also dispersed in the solution of the polymer (A) in the liquid diluent (B); forming a base-coat film upon the surface from the base-coat composition; applying to the base-coat film so obtained a transparent top-coat composition comprising a film-forming polymer (E) and a volatile carrier liquid for the polymer to form a polymer film upon the base-coat film.