As a water blocking building sealing material, in order to improve the water pressure resistance, there are certain requirements for the body strength and elasticity of the good price and quality POLYURETHANE SEALANT FOR GENERAL USE material. These two indicators are basically determined by the characteristics of the base material polyurethane prepolymer in the water swelling general-purpose polyurethane sealant, and can be adjusted by the molecular weight and ratio of 2-functional polyether and 3-functional polyether, as well as the content of prepolymer in good price and quality POLYURETHANE SEALANT FOR GENERAL USE material.

Adjustment of surface drying time and curing speed of good price and quality POLYURETHANE SEALANT FOR GENERAL USE material

Proper surface drying time and curing speed are the main indicators that affect the construction performance. In good price and quality POLYURETHANE SEALANT FOR GENERAL USE material, the use requirements of different customers can be met by adjusting the one NCO content of the prepolymer, the proportion of 2-functional and 3-functional polyether in the prepolymer, and the amount of catalyst added.

Adjustment of workability of good price and quality POLYURETHANE SEALANT FOR GENERAL USE material

In the water blocking construction of buildings, there are certain requirements for the thixotropy and extrudability of the good price and quality POLYURETHANE SEALANT FOR GENERAL USE material that expands when encountering water. If the glue is too thick and difficult to extrude, it is not conducive to the construction. On the contrary, the flow of the good price and quality POLYURETHANE SEALANT FOR GENERAL USE material in the construction can not meet the use requirements. The workability can be adjusted by adding an appropriate amount of thixotropic agent, plasticizer or a small amount of solvent.

At the request of some customers, on the basis of not changing the product performance, we have adjusted the density of good price and quality POLYURETHANE SEALANT FOR GENERAL USE material to meet or exceed the water pressure resistance of some foreign good price and quality POLYURETHANE SEALANT FOR GENERAL USE material.