... hydrophobicity, impermeability, corrosion resistance product.2.Yunyan stone waterproofing create excellent “hydrophobic layer” on the stone surface by ... , non-flammable, non-volatile produce. It has reliable waterproofing function, good alkali, acid and weathering resistance. The ... be cured well during this period.AttentionsIt is general chemicals that avoid splashing in the face, especially in ...