The invention relates to strippable heat-proof antirust protective
film coating and a preparation method thereof. The
raw material of the protective
film coating is formed by paint and curing agent. The paint comprises, by weight, 88-96 parts of linear chain
polyester resin or
acrylic resin containing
hydroxide radical, 2.0-5.0 parts of stripping
accelerant, 1.0-3.0 parts of film-forming
accelerant, 0.5-2.0 parts of antifoaming agent and 0.5-2.0 parts of flatting agent. The curing agent comprises, by weight, 25-40 parts
isocyanate polymer. The linear chain
polyester resin or the
acrylic resin containing the
hydroxide radical is heated and stirred and then added in other components except the curing agent, the
isocyanate polymer is added in the mixture during usage, and the strippable heat-proof antirust protective
film coating is obtained after even mixing. The strippable heat-proof antirust protective film
coating does not contain
solvent, meets environment-friendly requirements, simultaneously has high waterproof performance, oil resistance,
temperature resistance, abrasion resistance and strippable performance, can have
metal surfaces, stripping surfaces, plastic surfaces and the like at the same time, and has temporary antirust protection effects.