... , long service life (2) Fine percolating and absorbing water to ensure drip wet the wall(3) Specific stereoscopic structure ... , absorb water naturally, fast speed of pervasion, lasting effectiveness. A piece of water can diffuse in 4-5 seconds. Height of absorb water: 60 ... chemical products. It is harmless and poise less while installation and using. It is safe, energy saving, environmental protective ...