The emulsion used in the preparation of polymer cement waterproof coating UV aging has a significant capacity and a certain thermal aging capabilities. Nano-SiO_2 optimum dosage is 1.0%. Also studied montmorillonite prepared and crosslinking compound and organic montmorillonite and processing of nano SiO_2 composite graft-modified polymer cement-based waterproof coating. The results showed that: increase the tensile strength of composite coating polymer modified cement-based waterproof coating pictures, and water resistance, UV resistance, aging resistance and heat aging resistance than a single waterproof coating modified under the same conditions. Leakage has become a common problem of building quality construction waterproof coating, which not only disrupt people's normal life, work and production order polymer cement-based waterproof coating quality, and causing huge economic losses to the country. Therefore, building waterproofing plays an important role in the construction of the project, to ensure that the play with the life of the building using the function has not be underestimated. Polymer cement-based waterproof coating to be more widely used in the construction waterproof, the polymer emulsion and inorganic filler composite made of two-component water emulsion waterproof coating. Polymer cement-based waterproof coating waterproof coating production _ _ long long source source Weifang waterproof material Limited. Weifang City for the source of waterproof material Ltd. (www.jiuyuanfangshui.com) strong, credible, Shandong Weifang waterproof, moisture-proof materials industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the long-source waterproof material into the brilliant and you work for a better future!