Frequently asked questions about water-like epoxy flooring

China Paint Online News Information: Water-based epoxy flooring problem, the first is the primer off: usually water-based epoxy resin coating due to water as a thinner, compared with oily epoxy surface pressure is larger, and the substrate wetting capacity is insufficient. Causes the primer and substrate adhesion to drop and fall off. Before construction, the substrate dust and other clean-up is not thorough and easy to cause adhesion to drop. Solution: Select the water-based epoxy AB part with better penetration ability, adjust the appropriate viscosity and solid content, add the wetting leveling agent appropriately when painting, and in order to improve the binding force, the bottom coating construction must be rolled and not scraped. The on-site mixing of AB parts of whole water-based epoxy resin is simple, compatible, and the particle size is uniform to the substrate penetration and curing performance is good. Before construction, the substrate is thoroughly treated. And the primer curing bad re-stick problem, into AB component mixing bad, affecting the coating performance. Solution: Strengthen site construction management, primer as far as possible to choose a full-water epoxy resin AB parts.
the other middle layer cracking, skin: water-based epoxy RESIN AB solid content is too low; At this time, although there is a similar scraping viscosity to oily epoxy, but the effective substance is less, not enough to wet and wrap the substrate and filler. The medium coating is thicker, the moisture can not be in the water-like epoxy normal film before the timely evaporating of the case can also cause the cured coating to rise. Solution: Water-like epoxy paint production fixed water added, finished paint does not need to add water. On-site powdering, sanding to be accurate, construction to maintain air circulation. Thicker coatings add cement and quartz sand. There is a layer of roller printing, uneven gloss: paint in the production of paint dispersion is insufficient, AB components mixed, placement time is too long, material performance changes, local thickness differences when coating, slow release of moisture. Solution: Water-based epoxy surface paint AB components after mixing requires 30-40 minutes to run out, on-site air circulation, coating thickness is uniform.
About the surface part of the strength difference, drop powder: water-based epoxy AB components on-site mixing and mixing, the material in a longer period of time did not run out, the internal molecules of the coating increased, film-forming properties decreased, resulting in a decrease in coating strength. Solution: After the water-based epoxy AB parts are mixed and stirred on site, the material is used up within the specified time. The last layer cracking, skin problem: paint coating after 5 to 7 hours local low-lying or thick parts do not dry, 1 to 2 days after the surface cracking, skin, usually because of the thicker part, moisture release is too slow, paint reaction and film, a large amount of water was not released in time. Solution: Control air humidity on site and maintain good ventilation, coating as consistent thickness as possible. At present, its products are widely used in water-based resin coatings, epoxy coatings, anti-corrosion coatings, water-based epoxy coatings, electronic potting materials, epoxy adhesives, concrete reinforcement, reinforcement, dyeing and other industries.