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    Home > Coatings News > Paints and Coatings Market > Wall construction | stainless steel paint: common problems

    Wall construction | stainless steel paint: common problems

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: painting on stainless steel surface is a common anti-corrosion process, but many times, due to the nonstandard painting process, there will always be some small defects on the surface of stainless steel paint film The following will reveal some common problems of stainless steel paint, and explore the reasons Problem 1: there are pinprick holes with a concave bottom on the surface of the paint film, and the hole diameter is about 100 microns Causes: 1 The surface of the board is not well treated, resulting in wood wool and wood thorn, which leads to the difficulty of filling 2 Before the bottom layer is completely dry, the second construction is started 3 The moisture content of wood is high 4 Too much curing agent is added Five Paint agent, top 10 Chinese wall paint brands Recommended introduction: interior wall paint and exterior wall paint can achieve beautiful, clean and pleasant effects, but the effects in different environments are different, so the color of the paint will be different There are ten brands of Chinese paint, ten brands of global paint, ten brands of Chinese wall paint, and ten brands of Chinese paint, Famous trademark of Chinese paint and coating In private rooms, most of us choose according to our own personality, personal hobbies and living habits The younger generation will choose the interior wall paint with rich colors and bright colors, while the older ones will have some working experience Paint Home News: painting on stainless steel surface is a common anti-corrosion process, but many times, due to the nonstandard painting process, there will always be some small defects on the surface of stainless steel paint film The following will reveal some common problems of stainless steel paint, and explore the reasons Problem 1: there are pinprick holes with a concave bottom on the surface of the paint film, and the hole diameter is about 100 microns Causes: 1 The surface of the board is not well treated, resulting in wood wool and wood thorn, which leads to the difficulty of filling 2 Before the bottom layer is completely dry, the second construction is started 3 The moisture content of wood is high 4 Too much curing agent is added 5 Curing agent and diluent are not properly matched 6 The prepared paint did not stand for a period of time, resulting in a high viscosity of the paint and incomplete elimination of air bubbles 7 The ambient temperature and humidity are on the high side 8 One time construction coating is too thick Problem 2: after the paint film is dry, there are protruding round bubbles of different sizes between the coated surface and the paint film or between the two layers of paint film Reasons: 1 The oil-based or water-based putty is not completely dry or the primer coating is not dry before the start of painting the finishing layer 2 The substrate treatment does not meet the requirements, such as the pine resin is not removed in time, the aromatic oil contained in the wood itself, and the moisture content of the wood is higher 3 The viscosity of the paint is too high 4 When painting, drag the brush back and forth, resulting in bubbles that cannot be completely eliminated 5 The mixing proportion of paint is improper 6 There is water in the compressor and air pipe, or water splashes on the surface during construction 7 Joints and holes not filled with wood 8 The surface of the base material is dirty such as oil, dust or blister, and there is moisture around Problem 3: the coating contains water or other liquids, and the color of the coating is light white, white mist like Causes: 1 Due to the high moisture content of the board, after a long time, the moisture accumulated in the paint film, resulting in whitening 2 The paint is too thick 3 There is moisture in the stainless steel surface or paint 4 The moisture contained in the primer film was not removed 5 The diluent volatilizes too fast 6 The curing agent is mixed in the wrong way, resulting in incompatibility with the paint and whitening 7 The humidity of the environment is too high Problem 4: the solvent in the upper coating softens and swells the bottom paint film, resulting in poor adhesion of the bottom paint film, and then peeling and undercutting Reasons: 1 The primer is not completely dry, and the top coat is applied The solvent of the top coat dissolves and softens the primer 2 The operation is not fast enough when painting the top coat, and the times of repeated painting are too many 3 The amount of curing agent for the first coat is not enough 4 The front and back coating are not matched properly After reading so many, do you have a further understanding of some common problems and causes of stainless steel paint? I hope you can avoid the above mistakes in the process of painting stainless steel paint in the future, so as to ensure that the surface of the finish coat is smooth and traceless 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,
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