1. The newly-concrete concrete ground concrete is mainly composed of cement, sand, stone, plaster, etc., with high water absorption, strong alkali, and slow drying. The surface of the newly poured concrete pan-alkaline and water absorption rate is the key to affect the quality of coating, so it must be dried for a long time before coating, unless the special reduction of water, otherwise it is generally required to dry more than 28D, the base surface moisture content should be less than 6%. Surface pantothenics should be completely removed and neutralized if necessary. The concrete strength requirement is above C25. The flatness of the ground shall be checked with a 2m ruler, and the clearance shall not be greater than 3mm.
2, stone ground
Mainly tile floor or stone, granite, marble, terrazzo and other stone ground, fully polished before coating, to a certain degree of roughness, improve the adhesion of floor coating. In the process of using stone floor, waxing and maintenance is usually performed. Floor wax will seriously affect the paint construction, causing problems such as non-wetting and adhesion. Therefore, it must be cleaned with wax water, etc. Stone floor has joints and damage. There are pits and other defects on the terrazzo surface. Putty should be used to make up and smooth the surface before painting.
3, old ground
The old ground that has been used should be repaired. If there are wax layers, oil contamination, chemically corrosive media and old coatings, appropriate methods should be taken.
2, stone ground
Mainly tile floor or stone, granite, marble, terrazzo and other stone ground, fully polished before coating, to a certain degree of roughness, improve the adhesion of floor coating. In the process of using stone floor, waxing and maintenance is usually performed. Floor wax will seriously affect the paint construction, causing problems such as non-wetting and adhesion. Therefore, it must be cleaned with wax water, etc. Stone floor has joints and damage. There are pits and other defects on the terrazzo surface. Putty should be used to make up and smooth the surface before painting.
3, old ground
The old ground that has been used should be repaired. If there are wax layers, oil contamination, chemically corrosive media and old coatings, appropriate methods should be taken.
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