Transparent waterproof adhesive contains polydimethylsiloxane, 1,2-hexanediol. Sealed with waterproof sealant to protect against leaks. When dry, any color can be used. Fills seams, cracks, leaks. Prevents leaks. Click to apply - simple & convenient. Usage: 1. Clean & dry cracks inside/outside. 2. Apply glue evenly. 3. Wait 24-48 hrs to form waterproof layer. Features: - Easy surface spraying - Deep waterproofing - Super impermeability - Colorless & odorless - Eco-friendly - Long-lasting inorganic waterproof effect