With the acceleration of the industrial upgrading of China's construction industry, buildings have shown a trend of rapid development in recent years. As the first line of defense for the waterproof of exterior wall slab joints, the performance of the best POLYURETHANE SEALANT FOR CONSTRUCTION material is directly related to the waterproof effect of the project, and has attracted more and more attention.

The best POLYURETHANE SEALANT FOR CONSTRUCTION material is mainly composed of polyurethane prepolymer. This kind of sealant has high tensile strength and excellent elasticity, but it has poor weather resistance, alkali resistance and water resistance, and can not be heat-resistant for a long time. In addition, the storage stability of one-component sealant is greatly affected by the outside world, and bubbles and cracks may occur when used in high-temperature thermal environment.

The curing time of the best POLYURETHANE SEALANT FOR CONSTRUCTION material is sometimes slow in the sizing process. What is the reason?

1、 The glue is too thick and the glue dries slowly.

2、 The construction environment is affected and the weather is bad.

3、 The mortar is expired or has problems.

4、 The glue is too soft and doesn't feel dry.

What are the reasons for the oil leakage of the best POLYURETHANE SEALANT FOR CONSTRUCTION material?

Generally, the best POLYURETHANE SEALANT FOR CONSTRUCTION material with oil leakage is not of good quality. It adds petroleum plasticizer. The plasticizer itself is an oily substance with swelling, which destroys the balance between the plasticizer and other components, and the oil will leak out. To avoid this situation, the best quality POLYURETHANE SEALANT FOR CONSTRUCTION.

What are the reasons for soft particles, hard blocks and black spots in POLYURETHANE SEALANT FOR CONSTRUCTION material?

these three situations occur separately and together, which are caused by improper treatment in the process of production or sub packaging, and the mixing of solidified sealant blocks or sundries. Soft particles and hard lumps are caused by crusting and mixing with glue on the part of the surface that dries quickly; It may also be caused by scraping glue on the bottom and surface of the barrel during sub packaging. Black spots are caused by unclean raw materials.