Paint knowledge: common construction problems and treatment methods of paint

Core tips: problem 1: bubble and pore cause: incorrect mixing method and time of the coating, or the base is not cleaned, can make the coating produce pores or bubbles In the mixing process, the agitator with high power and low rotation speed shall be selected, and the forced mixing time shall be controlled at least 5min; the base course must be clean and free of floating sand and lime soil, and the pores of the base course shall be filled with base course coating to avoid bubbles If the coating is too thick, bubbles will also appear on the surface of the coating Treatment method: puncture the air bubble, remove the floating film, exhaust air, fill or supplement with paint Problem 2: cause of bulge: large moisture content of base course and ambient temperature Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: problem 1: air bubble, air hole reason: paint mixing method and time control is not right, or the base is not treated clean, can make the film produce air hole or air bubble In the mixing process, the agitator with high power and low rotation speed shall be selected, and the forced mixing time shall be controlled at least 5min; the base course must be clean and free of floating sand and lime soil, and the pores of the base course shall be filled with base course coating to avoid bubbles If the coating is too thick, bubbles will also appear on the surface of the coating Treatment method: puncture the air bubble, remove the floating film, exhaust air, fill or supplement with paint Problem 2: cause of bulge: the water content of the base course is large, the ambient temperature is high, and the gas under the coating cannot be discharged, resulting in the bulge of the coating Treatment method: cut off the bulging part, dry the base layer, remove the moisture, and repair the coating several times Problem 3: edge warping reasons: the base is not treated well, the adhesive force of coating coating is not strong, and the operation of end closing is not correct Treatment method: slight edge warping can directly enhance the treatment; serious edge warping, the part of edge warping must be peeled off, cut off, roughen the base course, select the base course with strong adhesion, and then apply the base course with scratch, and seal the edge with layer coating Problem 4: damage cause: poor protection of finished products Treatment method: slight damage can directly enhance the coating treatment; for the larger damage, cut off the damaged part, clean the base, and enhance the coating waterproof in order and layer by layer to meet the design requirements Problem 5: coating layer and overall poor reasons: the ratio is not in accordance with the requirements, the construction interval between the upper and lower coating layers is too long, the reinforced cloth is not saturated, etc Treatment method: mix in strict accordance with the product specification proportion, the construction time of the upper and lower two coating layers and the above layers shall be subject to the actual work (the hand touch is not sticky, and the fingerprint is not left), which should not be separated for too long If there is reinforced cloth material, the reinforced cloth material must be fully soaked and firmly bonded with paint.