Concrete Preparation Putty

Molding sand, welding slag and rust on the surface of castings will seriously affect the appearance of the coating, which must be removed by sand blasting and polishing. After rough surface painting, the gloss of the coating will be dimmed and dull by the influence of surface roughness. Therefore, the coating with high decorative requirements must first make the surface smooth by surface treatment.The surface state of concrete directly determines the adhesion ability of polyurea coating on its surface. Water, dust, oil, defilm agent, loose layer, cement slurry and cohesive strength of concrete all have a great impact on the adhesion of the coating. Surface layer must be treated. Defect holes and cracks on concrete surface have great influence on the integrity of coating after spraying, and must be repaired.

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