... Slight expansion, good capability of anti-penetration. Paste curing in water after 3 days, no penetration under 1.5Mpa.4. ... working substrate, can be worked in watery environment.7. Easily used. Only mix with water while used.8. Environmental ... concrete, mortar or bricks, suitable for water-proofing and anti-penetration in underground engineering, water sluicing and piping, sewage farming system, ...