Development of and Defect Prevention in Novel Monocomponent Polyurethane Waterproof Coating

In this paper, performance characteristics of and synthesis processes for monocomponent polyurethane waterproof coatings are introduced in detail. The effects of molar ratio of NCO/OH, mass ratio of N220/330N, and content of the NCO group, as well as the performance impact of dibutyl phthalate (DBP) are discussed. In addition, common defects in monocomponent polyurethane waterproof coatings and their prevention methods are also discussed. On the basis of the discussion presented, it can be concluded that great attention should be paid to common defects in paint production and paint application so that they can be prevented before their occurrence. Such prevention can guarantee the perfect facade of coating decoration.