Coating common sense: coating defects: which defects are easy to appear in the construction quality of solvent wall coating?

Core tip: solvent based wall coating may have some quality defects (also known as film sick) during construction The following describes the causes and prevention methods (1) Possible causes of sagging (sagging, flowing, etc.) problems: ① low viscosity of coating section; ② too thick coating; ③ quality problems of coating itself with sagging; ④ too close distance between spray gun and wall during spraying construction, or the coating is not evenly mixed, and the upper coating is too thin The preventive measures can be taken: ① the viscosity of the coating shall be qualified, the ratio of pigment and filler shall be appropriate, and the coating shall be evenly stirred before application; 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: solvent based wall coating in the construction may appear some of the following quality defects (also known as film sick), the following describes the causes and prevention methods (1) Possible causes of sagging (sagging, flowing, etc.) problems: ① low viscosity of coating section; ② too thick coating; ③ quality problems of coating itself with sagging; ④ too close distance between spray gun and wall during spraying construction, or the coating is not evenly mixed, and the upper coating is too thin The preventive measures can be taken: ① the viscosity of the coating shall be qualified, the ratio of pigment and filler shall be appropriate, and the coating shall be evenly stirred before application; ② each coating layer shall not be too thick, and the construction tools shall not be too thick (brush or roller) do not dip too much paint each time; ③ negotiate with the manufacturer to solve the problem of sagging; ④ adjust the distance between the spray gun and the wall, and mix the paint evenly before application (2) The possible causes of the poor covering power of the coating film are as follows: ① the poor covering power of the coating itself; ② the low viscosity of the coating; ③ the coating with precipitation layer is not stirred evenly before coating; ④ the color difference between the primer or putty layer and the surface coating is large The preventive measures can be taken: ① select the coating with covering power (contrast ratio) meeting the requirements of quality standards; ② require the viscosity of the coating to be qualified; ③ fully mix the coating with sedimentation or stratification before coating; ④ adjust the color of the bottom coating or putty to be consistent as far as possible, or apply one more coat 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,