The service life of epoxy floor paint is determined by the solid content of epoxy resin. The solid content of the plain coating material should be 60%, and the self-leveling solid content should be more than 95% to reach the international index. The concrete strength must reach C2MPa. The moisture content should be less than 8%. The quality of epoxy floor paint without moisture regain is guaranteed and the construction technology is the key. The quality of epoxy floor requires not only clean and beautiful ground, but also anti-corrosion requirements such as wear resistance, impact resistance, anti-static, acid resistance, alkali resistance and salt resistance. Excellent epoxy floor not only requires higher performance of floor coatings, but also puts forward higher requirements for bad construction. High quality epoxy floor coatings and ordinary floor paints are essentially different. 一、基材处理不同
First, the substrate treatment is different.
Traditional ground brushing does not face up to the substrate treatment, sometimes concrete does not do any treatment on the primer, and some only do a little treatment, the treatment is shovel, sweep, remove dust just. Professional and scientific floor coating is carried out according to the following standards.
1. requirements for concrete floors:
(1) the concrete is required to be smooth and dense with a strength requirement of not less than C20:
(2) the general requirement for surface flatness is within 2M range, not larger than 2mm: larger drop. The thickness of floor coating should be increased to reduce the drop.
(3) If the ground to be coated is at the bottom and the groundwater level is high, the concrete bottom should be waterproof.
(4) the new concrete is dry for at least three weeks and the moisture content is not higher than 8%.
(5) it can also be applied on terrazzo and other substrates.
2. substrate treatment method for new concrete substrates, such as a method of treatment:
(1) Treatment: Improve the overall smoothness of the ground, remove the floating layer and dirt, and obtain a uniform rough surface to facilitate adhesion of the coating.
(2) processing equipment: self suction ground grinding machine, vacuum cleaner and so on.
(3) requirements: to achieve solid ground, no sand holes, holes. At the same time, it requires dry, clean, no floating dust, oil dirt, cement sand and other debris.
(4) Procedure: Use ground grinding machine as a whole grinding - dust absorption - repair large holes, depressions and cracks. For old lacquer floor, if the old lacquer layer is not firmly adhered to, it is necessary to use a ground milling machine to remove the old lacquer layer as a whole (the old lacquer layer below 1 mm thickness can be treated with a diamond cutter). Because of the high cost of treatment, if the customer does not require the overall removal of the lacquer layer, only remove the loose old coating, remove surface oil and debris.
A good quality floor paint is also directly related to the life of the product, so in the construction, we also need to pay attention to, but also peacetime maintenance, only the combination of the two can better achieve the floor paint life extension.
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