... underground tunnels, open caissons and pipelines. Water proof projects of toilets, bathrooms, kitchens, roof gardens, swimming pools, cesspit. ... joint, drain gully etc. It is applicable to cementation of metal pipes, anti-corrosion terrace, anti-corrosion pool, ... linen storage, water and vertical wall.Matters need attentionBefore solidification of the water proof layer, prevent rain, prohibit passers- ...