You asked about the famous brands of waterproof materials in Beijing. I think the famous waterproof materials in China are similar. I have a brand ranking of waterproof materials here, in no particular order, all of which are well-known brands in China. You can learn about it. 1 Malone (China well-known trademark, large-scale building materials chemical enterprise, Guangdong Malone Chemical Co., Ltd.)? 2 Sika (Sika, Switzerland, founded in 19 10, is the world's leading supplier of building chemical materials)? 3 Ylaide (Guangdong Keshun Chemical Co., Ltd., a national high-tech enterprise integrating R&D/ building waterproof material manufacturing)? 4 Ma Bei (Mabei Zhuoneng Building Materials Co., Ltd., the largest building adhesive manufacturer in the world today)? Panther (China famous trademark, Shenzhen famous trademark, Shenzhen Leopard Waterproof Material Co., Ltd.)? 6 Zhuobao (China well-known trademark, leading supplier of building waterproof materials in China, Shenzhen Zhuobao Technology Co., Ltd.) 7 Dongfang Yuhong (China well-known trademark, best waterproof project in China, first-line brand of family waterproof, Beijing Dongfang Yuhong Waterproof Technology Co., Ltd.). Waterproof is the first listed company. 8 Lei Bangshi (a famous brand in China, the proposal and formulation of the concept of family waterproofing, the advocate and guide of family waterproofing experts, Guangzhou Lei Bangshi Chemical Building Materials Co., Ltd.)? 9 gaode (founded in 1883, which is the first well-known brand in the field of applied chemistry in the world to make polymer cement-based waterproof coatings in China) 10 henkel (founded in 1876, which is a well-known brand in the field of applied chemistry in the world)? Bathrooms generally use indoor waterproof materials. The commonly used waterproof materials for bathroom waterproof decoration are polymer cement-based waterproof coatings, that is, market names: universal, flexible, K 1 1, JS, gs waterproof coatings/slurry. This kind of product is water-based paint, which is non-toxic, harmless and pollution-free, simple and fast in construction, closely bonded with cement substrate and long in service life, and is especially suitable for construction and waterproofing in complex places on the ground.