Our Invisible Waterproofing Agent Contains Polymer Copolymers. It Is Waterproof And Moisture-Proof And Easy To Install. 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 First With Sealant 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." After Food, Energy And Water For A Few Minutes: 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. Moreover, It Can Form A Layer Of Insoluble Waterproof Polymer Compounds Several Molecular Thicknesses On The Surface And Inside The Structural Materials. This Resin Film Has The Advantages Of Waterproofing, Anti-Seepage, Moisture-Proofing, Rust-Proofing And Pollution Resistance.