Wholesale price Free sample & Organosilicon ~ water repellent &water repellent HS-26 .top quality Competitive Wholesale price Free sample & Organosilicon ~ water repellent &water repellent HS-26 used in water repellent in constructions ,stones,marble,concrete , heat insulator additives,and the petroleum additives,etc) Product NameMethyl silicate Technological Indices1.Appearance White Powder 2. ...