Features: 1. **Effective Leak Repair**: Our 30ml waterproof sealant is designed to seal cracks and leaks in roofs and walls, ensuring a long-lasting waterproof barrier that keeps your home safe from water damage. 2. **Advanced Formula**: Made with sodium lignosulfonate, dibutyl ester, and sodium chloride, this multi-purpose agent creates a durable, moisture-resistant film that protects against rust and pollution. 3. **Easy Application**: Simply spray the sealant on a clean, dry surface and let it dry for 20 minutes. The user-friendly application process makes it perfect for DIY repairs. 4. **Versatile Use**: Ideal for various surfaces, including roofs, walls, and other structural materials, this sealant is perfect for both indoor and outdoor use, providing reliable protection everywhere. 5. **Long-Lasting Protection**: Once applied, the sealant forms a thick, insoluble waterproof polymer compound that ensures your surfaces remain protected from moisture and leaks for years to come. Our waterproof glue leak repair agent (30ml) contains sodium lignosulfonate, dibutyl ester and sodium chloride. It can effectively seal leakage cracks, allowing water droplets to float on the surface, thereby achieving a waterproof effect. Its usage method is very simple: Evenly spray the wine on the surface of the object, making sure the surface is dry and free of excess impurities. After the spraying is completed, wait for 20 minutes until the surface of the sprayed object dries and forms a film. A layer of insoluble waterproof polymer compound several molecules thick is formed on the surface and inside the structural material, which is a network of silicone resin films. This resin film has the advantages of being waterproof, impermeable, moisture-proof, rust-proof and pollution-proof.