| 摘要 |
The present invention relates to a waterproofing method improving waterproof properties by using a polyurea waterproof agent and polyurethane and, more specifically, a waterproofing method remarkably improving waterproof properties by coating a permeable polyurea waterproof layer in which air bubble are generated with polyurethane and coating the upper side of the waterproof layer with ultra-rapid hardening polyurea. |
