Our transparent waterproof adhesive contains polydimethylsiloxane, 1, 2-hexanediol. It can be sealed with waterproof sealant to protect against leaks! When dry, any color can be used. It can fill seams, cracks, leaks, prevent leaks, just click, simple and convenient. Its use method is very simple: 1. Clean and dry the cracks inside and outside; 2. Apply appropriate amount of glue evenly to the cracks; 3. Wait 24-48 hours to form a waterproof layer. Convenient construction, easy surface spraying; Deep waterproof, super impermeability; Colorless and odorless, super environmental protection; Long-lasting inorganic waterproof effect.