Our waterproof sealant contains defoamer, polyurethane resin. It can quickly form a waterproof layer with a long bonding period and is not easy to break over time. The way to use it is very simple: please make sure that the table is clean, dry and dust free before use. Squeeze out appropriate amount of this product and evenly apply to the area to be sealed, wipe flat with a scraper or brush, and allow to dry completely. And can improve stability, prevent material degradation, enhance the sealing effect.