Our invisible waterproofing agent contains polymer copolymers. It can be waterproof and moisture-proof， and is convenient for construction. Its usage method is very simple: 1. Clean the base surface before construction to ensure it is dry and free of dirt. If there are cracks (more than 2 millimeters)， it is recommended to repair them with sealant first and then apply waterproofing agent. 2. Spray or brush products can be directly applied to the surfaces of tiles， floor tiles， wall tiles， cement， etc. "Wait for the product to penetrate the base layer." A few minutes after food， energy and water: When there is no liquid on the surface， spray twice or three times to enhance the effect. After curing for 24 to 48 hours， a waterproof layer can be formed， and as time goes by， the strength of the waterproof layer will become stronger. And it can form a layer of insoluble waterproof polymer compound with several molecular thicknesses on the surface and inside the structural material. This resin film has the advantages of waterproofing， anti-seepage， moisture-proofing， anti-rust and anti-pollution.