Coating common sense: what is the alkali resistance of coating?

Core tip: alkali resistance refers to the resistance of paint film to alkali corrosion The specific inspection method in the national standard is: first, prepare the test board on the standard size asbestos cement board according to the standard provisions, and seal the prepared test board with 1:1 paraffin and rosin mixture for back sealing Then immerse 2 / 3 of the test plate area into the saturated solution of calcium hydroxide at 23 ± 2 ℃ until the specified time Observe whether the coating is blistered, cracked, peeled, powdered, softened and dissolved Alkali resistance is different from what we often call alkali return Alkali resistance tends to be tested Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Paint Home News: [news] alkali resistance refers to the resistance of paint film to alkali corrosion The specific inspection method in the national standard is: first, prepare the test board on the standard size asbestos cement board according to the standard provisions, and seal the prepared test board with 1:1 paraffin and rosin mixture for back sealing Then immerse 2 / 3 of the test plate area into the saturated solution of calcium hydroxide at 23 ± 2 ℃ until the specified time Observe whether the coating is blistered, cracked, peeled, powdered, softened and dissolved Alkali resistance is different from what we often call alkali return Alkali resistance tends to examine whether the paint film is damaged under alkaline conditions Alkali return refers to the precipitation of alkaline substances on the basic substrate of the paint film, and the paint film is generally not damaged Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,