1 How to face and solve the needle hole problem
Coated polyurea waterproof coating, when applied to the concrete base, can not ignore the needle hole problem. On the concrete base, when the thermal spray system is applied, the humidity of the air and the base surface is far beyond the construction requirements. The generation of the needle hole is also very common in thermal spray construction.
2 How to face the problem of wet base construction
For the concrete base surface, the surface is wet, which is an unavoidable problem. The moisture gathers under the coating, the adhesion is worrying, and the mechanical properties of the coating are also very different from the test results.
3 How to ensure thickness uniformity control problem
Three-point paint, seven-point construction, please remember: If the coating thickness is not uniform, in the case of the same force, the thickness will be thin, there will undoubtedly be an early failure. The thickness control of the spray polyurea waterproof coating is also very heavy.
