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    Home > Coatings News > Paints and Coatings Market > Common knowledge of coating: how to prevent three "common diseases" of emulsion paint

    Common knowledge of coating: how to prevent three "common diseases" of emulsion paint

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: after we use latex paint in home decoration, due to the quality and painting problems of latex paint itself, such and such "common diseases" often appear on the walls of latex paint In order to prevent or delay the occurrence of these problems, we should take precautions in advance Discoloration and fading Causes: some walls have too high temperature, long sunshine time, or water-soluble salts crystallize on the wall surface, causing color change and discoloration of emulsion paint; some walls contain too high alkali value, which infringes on weak alkali resistant pigments or resins, causing color change and discoloration; some are improper construction, and polyurethane Which is the price of Dajin diatom mud Recommended brief introduction: which is the price of Dajin diatom mud? How to buy genuine diatom mud? Guangdong diatom mud agent suggests placing a basin of cold water in the air conditioning room, so that the diatom mud wall can breathe effectively The feature of the breathing wall is obvious When the indoor air is dry, the diatom mud wall will release the absorbed water quickly Put it out to help regulate the indoor dry humidity It is suggested to place a basin of cold water in the air conditioning room, so that the wall of diatom mud can breathe effectively The feature of the wall that can breathe is obvious When the indoor air is relatively dry, the wall of diatom mud will absorb the water Paint Home News: after we use latex paint in home decoration, due to the quality and painting problems of latex paint itself, latex paint walls often have such and such "common diseases" In order to prevent or delay the occurrence of these problems, we should take precautions in advance Causes of discoloration and fading: some walls have too high temperature, long sunshine time, or water-soluble salt crystallizes on the wall surface, which causes discoloration and fading of emulsion paint; some walls contain too high alkali value, which infringes the weak alkali resistant pigment or resin and causes discoloration and fading; Some are improper construction, and polyurethane paint construction at the same time, this kind of paint contains TDI composition will make latex paint discoloration Prevention: as the first case is relatively rare, you can consult the relevant personnel; for the second case, refer to the treatment method of pulverization; to avoid the third case, latex paint and polyurethane paint should not be used at the same time, you can paint latex paint two days after the paint is painted (at 25 ℃), or paint after the latex paint is completely dry (at 25 ℃) Cause of pulverization: due to the poor weather resistance of resin, the main component of some low-grade emulsion paint, if the wall is not treated in advance or constructed at low temperature, it will cause poor film formation of emulsion paint, which will happen soon after the application of emulsion paint Sometimes, too much water will also cause the emulsion paint to be powdered Prevention: first, the wall surface shall be thoroughly treated, and the wall surface shall be brushed with special wall putty and polished; then, the water-based or oil-based back primer shall be applied once, and then the top coat shall be applied twice In addition, the emulsion paint must be mixed with water according to the specified proportion, and avoid construction at low temperature Peeling and peeling causes: this phenomenon is caused by the moisture in the wall, which makes the paint film off the wall, causing peeling Of course, improper treatment of the wall will also cause such problems Prevention: observe before construction, if there is leakage, ask relevant departments to solve it in time If it is a new house, the phenomenon of water evaporation from the wall is inevitable, and special treatment should be added It is suggested that the wall should be pretreated with durable and waterproof elastic putty, and then painted as usual, so as to avoid peeling and falling off Based on the above three situations, except for special reasons, improper treatment of the wall will cause one or other problems of the emulsion paint wall, so when you supervise the construction, you must let the workers clean the wall, and do not act rashly, or the consequences will be unimaginable 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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