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    Home > Coatings News > Paints and Coatings Market > Coating knowledge: remedy method for wet and moldy wall

    Coating knowledge: remedy method for wet and moldy wall

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: Wall problem 1: sometimes the wall will have blister like protrusions, and also contain sand particles, which will fall when touched slightly The causes of wall blistering are too much pigment added or mixed with sundries in the paint preparation; unclean paint barrel, brush, roller or spray gun; before the paint surface is completely dry, water infiltrates into the paint, resulting in the loss of adhesion of the paint film; the wall is not cleaned when painting the wall, etc In order to solve the problem of wall blistering, first of all, it is necessary to avoid painting in the season with high humidity or in the weather Secondly, the interval of painting times must wait for the putty or paint film to dry and then paint the next layer Before painting, clean the construction environment and clean it 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: Wall problem 1: foaming sometimes the wall will have a bubble like protrusion, but also contains sand, a little touch will fall The causes of wall blistering are too much pigment added or mixed with sundries in the paint preparation; unclean paint barrel, brush, roller or spray gun; before the paint surface is completely dry, water infiltrates into the paint, resulting in the loss of adhesion of the paint film; the wall is not cleaned when painting the wall, etc In order to solve the problem of wall blistering, first of all, it is necessary to avoid painting in the season with high humidity or in the weather Secondly, the time interval of painting times must wait for the putty or paint film to dry and then paint the next layer Before painting construction, clean the construction environment and clean the painting objects When bubbles appear on the wall, first remove all blisters and peeling parts, but if the problem is caused by the putty on the wall base, it is necessary to remove the putty, and select the appropriate putty to re scrape again Local wall blistering can only be partially scraped, and the edge of the scraped part shall be ground smooth, then primed and repainted; if it is a large area of blistering, it shall be completely scraped, and construction shall be carried out when the wall is dry Wall problem 2: peeling sometimes only after finishing the decoration, the wall appears the phenomenon of block putty floating and falling The main reasons are poor construction technology, poor putty, coating adhesion and shrinkage performance, etc The quality of construction technology needs professional construction team and experienced construction personnel, which reminds us to be careful when looking for decoration company and not to be greedy for cheap To solve this problem, it is necessary to reinforce the base course, shovel off the wall in the peeling area, thoroughly remove the sundries on the wall, and brush the putty and paint again There is a difference in the paint applied to the interior and exterior walls The interior wall latex paint has a high requirement for scrub resistance It is easy to stain the wall surface in home life and can be wiped with water at any time Exterior wall paint can be used for interior wall painting because it also has water resistance, while interior wall paint does not have sun resistance, so it cannot be used for exterior wall painting Wall problem 3: before wall peeling, one of the wall problems that will occur is wall cracking Spider web like cracks appear on the wall little by little until they are connected into one piece, leading to wall falling off The reason for the wall cracking may be due to the putty shrinkage In the construction, if the previous putty is not completely dried, the putty will be scraped once, and if the second putty is not completely dried, the paint will be painted, causing the cracking of the back layer after the putty is dried The remedy method of cracking can spread the putty and paint on the cracks, but it can not be completely eliminated In order to prevent this kind of problem, it is necessary to wait for the last putty to dry completely before scraping the next one, and the thickness of each putty shall not exceed 2mm During rework and repair, the cracks shall be scraped clean first, and then the putty shall be scraped for repair After the putty is dry, the top coat shall be painted Wall problem 4: mildew due to indoor too wet, or long-term immersion in water, the wall is easy to have spots of mildew, or a large area of mildew, and some even grow moss The moldy treatment of the wall surface should first use a scraper to scrape off the moldy wall surface The scraped area should be a circle larger than the moldy area, and then ventilation and air drying should be carried out to ensure that it is not wet before it is conducive to the later repair work Clean the wall that has been scraped off the wall surface, apply the putty powder that has been adjusted, and then apply lime after the putty is dry, the lime can absorb the moisture and keep dry; then apply the waterproof paint and emulsion paint, and finally polish the wall surface once If every step in the decoration process is strictly done according to the requirements, there will not be so many problems later Therefore, prevention is more important than remedy, and the selection of construction team must be serious [focus on WeChat official account "paint net"; pay attention to surprises; scan code to see what the paint sales are Great! 》Paint home is specialized in coating, diatom mud, paint coating, coating process, news information and coating of fireproof coating, diatom mud, paint coating, coating process, decoration knowledge and decoration effect map of fireproof coating,
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