Analysis of 5 Common Epoxy Floor Paint Construction Problems
Although the floor paint construction is not complicated, but if you do not pay attention to the correct construction method, there will be blistering, not dry, pinhole and shrinkage and other common paint disease. The following is a detailed introduction to the common problems of epoxy floor paint construction. 1. Blistering problem of epoxy floor paint: Epoxy floor paint blistering is divided into two cases: that is, the coating surface blistering and osmotic pressure blistering. Coating surface blistering is mainly due to the presence of moisture and volatile liquid, the film in the drying process or in the case of high temperature and high humidity, the surface will appear many uneven size, round irregular bubble bulging phenomenon; Osmotic pressure foaming is mainly caused by water vapor in concrete. Small bubbles in the paint film curing process to escape when the micro pores, in the curing reaction process, due to the increase in coating viscosity, pores fine pipe will not be closed, thus retained to the dry film. To achieve the surface of the film without residual air or micro bubble. One is to choose a good construction method to reduce the amount of air entering. However, in the actual operation process, the construction method is mostly determined by the actual application conditions, but the method has limited effect. The second is to reduce or eliminate microbubbles by adjusting the coating formulation. Specifically, the foaming problem can be significantly reduced by selecting low foaming raw materials or adjusting excellent viscosity. However, this method is often limited to the predetermined performance index of the coating and the viscosity specification at the time of construction. Causes of blistering: the base layer is not completely closed, or the surface layer is not eliminated before construction and gassing is omitted. Treatment method: strengthen the inspection and treatment of the base level. After each coating trowel before the surface layer is made or coated, check it again to see if there are bubbles on the surface. In some areas, the bamboo broom is brushed flat to deflate the bubbles. Be careful and there must be no omission. The next process will be carried out after the coating film is cured. 2, epoxy floor paint does not dry the problem: 1, epoxy floor paint ratio is not correct, such as more or less curing agent will appear this problem, it is recommended that the ingredients must be used to match the electronic scale. 2. If the surface is still sticky after 24 hours, it seems that it will not dry all the time. At this time, it is necessary to immediately use solvent-free epoxy resin to scrape another layer on the surface. After drying out, roll another layer of topcoat. 3, epoxy floor paint pinhole problem: In the process of mixing the curing agent with the main material, a large number of bubbles are generated in the coating due to stirring. In the curing process, the bubbles continue to diverge, leaving traces on the base layer and becoming pinholes. Or the construction personnel do not control the initial setting time of the coating well, and the pinhole healing is poor after the deflation nail barrel is rolled. Treatment method: wipe the air particles (bubbles) over and over again with a trowel, and the crackling sound of bubbles can be heard, and the amount of smearing shall not exceed 2mm in thickness each time; Pay attention to the time of defoaming with the air release nail cylinder. 4, epoxy floor paint depression problem: The surface tension of the coating is uneven, and the local regularity is shown. Before curing, water drops will also form depressions on the coating film; Treatment method: strengthen the technical training of construction personnel; in the summer, the sweat dripping from the construction personnel will usually cause depression on the uncured coating film. Prevent any moisture from contacting the material during construction, and be sure to pay attention before curing. 5, epoxy floor paint shrinkage problem: 1, before construction, to check the quality of epoxy floor paint materials, confirm whether the coating is matched, correct before construction. 2. Clean up the construction site and keep it clean and tidy. Construction tools and equipment shall be cleaned before painting before construction. 3, the bottom of the sand to be flat, epoxy floor paint need to be fully polished, can not have a leak grinding place, with fine sandpaper comprehensive and uniform grinding again, and will be polished to clean up the dust, and then the floor paint coating work. 4. Thoroughly clean up the moisture and grease and other dirt in the air compressor, duct and spray gun. Guangzhou Zhiye Chemical Co., Ltd. has been focusing on floor paint for 23 years. As a professional floor paint manufacturer established in the early stage of China, Zhiye has taken the lead in passing ISO management in the industry. It has always insisted on creating the greatest value for customers with continuous innovation, specializing in R & D, production, sales and application services of high-quality epoxy resin floor. Address (Address): 4/F, Deputy Building, Kerui Building, 336 Qingnian Road, Huangpu District Development Zone, Guangzhou Tel: 020-82057070 Web: www.gzzeal.com
Release Time:
2020-10-23 16:25
Although the floor paint construction is not complicated, but if you do not pay attention to the correct construction method, there will be blistering, not dry, pinhole and shrinkage and other common paint disease. The following is a detailed introduction to the common problems of epoxy floor paint construction.
1. Blistering problem of epoxy floor paint:
Epoxy floor paint blistering is divided into two cases: that is, the coating surface blistering and osmotic pressure blistering.
Coating surface blistering is mainly due to the presence of moisture and volatile liquid, the film in the drying process or in the case of high temperature and high humidity, the surface will appear many uneven size, round irregular bubble bulging phenomenon;
Osmotic pressure foaming is mainly caused by water vapor in concrete. Small bubbles in the paint film curing process to escape when the micro pores, in the curing reaction process, due to the increase in coating viscosity, pores fine pipe will not be closed, thus retained to the dry film.
To achieve the surface of the film without residual air or micro bubble. One is to choose a good construction method to reduce the amount of air entering. However, in the actual operation process, the construction method is mostly determined by the actual application conditions, but the method has limited effect. The second is to reduce or eliminate microbubbles by adjusting the coating formulation. Specifically, the foaming problem can be significantly reduced by selecting low foaming raw materials or adjusting excellent viscosity. However, this method is often limited to the predetermined performance index of the coating and the viscosity specification at the time of construction.
Causes of blistering: the base layer is not completely closed, or the surface layer is not eliminated before construction and gassing is omitted.
Treatment method: strengthen the inspection and treatment of the base level. After each coating trowel before the surface layer is made or coated, check it again to see if there are bubbles on the surface. In some areas, the bamboo broom is brushed flat to deflate the bubbles. Be careful and there must be no omission. The next process will be carried out after the coating film is cured.
2, epoxy floor paint does not dry the problem:
1, epoxy floor paint ratio is not correct, such as more or less curing agent will appear this problem, it is recommended that the ingredients must be used to match the electronic scale.
2. If the surface is still sticky after 24 hours, it seems that it will not dry all the time. At this time, it is necessary to immediately use solvent-free epoxy resin to scrape another layer on the surface. After drying out, roll another layer of topcoat.
3, epoxy floor paint pinhole problem:
In the process of mixing the curing agent with the main material, a large number of bubbles are generated in the coating due to stirring. In the curing process, the bubbles continue to diverge, leaving traces on the base layer and becoming pinholes. Or the construction personnel do not control the initial setting time of the coating well, and the pinhole healing is poor after the deflation nail barrel is rolled.
Treatment method: wipe the air particles (bubbles) over and over again with a trowel, and the crackling sound of bubbles can be heard, and the amount of smearing shall not exceed 2mm in thickness each time; Pay attention to the time of defoaming with the air release nail cylinder.
4, epoxy floor paint depression problem:
The surface tension of the coating is uneven, and the local regularity is shown. Before curing, water drops will also form depressions on the coating film;
Treatment method: strengthen the technical training of construction personnel; in the summer, the sweat dripping from the construction personnel will usually cause depression on the uncured coating film. Prevent any moisture from contacting the material during construction, and be sure to pay attention before curing.
5, epoxy floor paint shrinkage problem:
1, before construction, to check the quality of epoxy floor paint materials, confirm whether the coating is matched, correct before construction.
2. Clean up the construction site and keep it clean and tidy. Construction tools and equipment shall be cleaned before painting before construction.
3, the bottom of the sand to be flat, epoxy floor paint need to be polished fully, can not have a leak grinding place, with fine sandpaper comprehensive and uniform grinding again, and will be polished to clean up the dust, and then the floor paint coating work.
4. Thoroughly clean up the moisture and grease and other dirt in the air compressor, duct and spray gun.
Guangzhou Zhiye Chemical Co., Ltd. has been focusing on floor paint for 23 years. As a professional floor paint manufacturer established in the early stage of China, Zhiye has taken the lead in passing ISO management in the industry. It has always insisted on creating the greatest value for customers with continuous innovation, specializing in R & D, production, sales and application services of high-quality epoxy resin floor.
Address (Address):
4/F, Deputy Building, Kerui Building, 336 Qingnian Road, Huangpu District Development Zone, Guangzhou
Tel: 020-82057070
Web: www.gzzeal.com
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Guangzhou Zeal Chemical Co., LTD
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Telephone：+86 020-8205 7070
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