After 1 year of practical use, the performance of semi-polyurea is much worse than that of pure polyurea.
Semi-polyurea is decomposed by catalyst, and polyurea is also decomposed.
Professor Huang Weibo, the father of China polyurea, does not recognize polyurethane polyurea or one-component polyurea, but only recognizes that two-component spray pure polyurea is polyurea. You can ask him.