| abstract |
Disclosed is a waterproof coating material having high safety and performance comparable to conventional products in terms of extensibility, curability, pot life, and the like. In a waterproofing coating material comprising a main agent containing polyisocyanate and a curing agent containing an amine compound and a polyol, the polyol in the curing agent has a hydroxyl value of 200 to 500 KOHmg / g, A castor oil-based polyol containing 80% by weight or more of secondary hydroxyl groups is used. [Selection figure] None |