First, the main advantages of water-soluble polyurethane plugging agent:

Water-soluble polyurethane plugging agent has strong adhesion to cement, metal and other inorganic materials. Water-soluble polyurethane plugging agent itself is very resistant to corrosion; excellent mechanical properties, wear resistance, impact resistance. Can be made of solvent-free or high solids water-soluble polyurethane plugging agent; resistant to organic solvents, heat and water; non-toxic coating film.

Second, the shortcomings of water-soluble polyurethane plugging agent:

Water-soluble polyurethane plugging agents have poor weatherability, and sunlight may cause powdering for a long period of time. Therefore, they can only be used as primers or interior paints; they are poorly decorated and their gloss is hard to maintain; and they are water-soluble polyurethane plugging agents. The construction environment requires high requirements. The curing of the coating film at a low temperature is slow, and the effect is not good. Many varieties require high-temperature curing, and the investment in painting equipment is relatively large.