cement waterproofing powder 1,Good anti-permeability and anti-cracking performance, 2 full and solid, compacted and uniform. cement waterproofing powder1,Good anti-permeability and anti-cracking performance, full and solid, compacted and uniform. So it can form an effective rigid waterproof layer.2, Good bond with various substrate. 3, Excellent water-resistance, anti-freezing and thawing, ...