300g Transparent Clear Waterproof Crack & Leak Sealant

Reliable transparent protection for leaks, cracks and damp areas.

This 300g Transparent Waterproof Adhesive Coating is designed for long-lasting sealing of hairline cracks, joints and porous surfaces on exterior walls, balconies, bathrooms and wet areas. The clear, water-based formula forms a flexible, continuous film that blocks water penetration while preserving the original appearance of tiles, stone, concrete, grout and other substrates.

Once cured, the coating creates a waterproof, mold-resistant barrier that helps prevent leaks, surface degradation and staining caused by moisture. Its stable formulation resists sagging in hot weather and reduces the risk of cracking or flaking in low temperatures, making it suitable for both indoor and outdoor use. Low-odor and solvent-free, it can be applied with a small brush, spatula or roller directly from the container.

Why It's a Smart Choice

• Discreet transparent finish - Dries clear so existing colors, patterns and textures remain visible for a neat, unobtrusive repair.
• Durable waterproof barrier - Forms a continuous film that helps stop seepage on exterior walls, bathroom floors, around sinks, toilets and showers.
• Mold- and mildew-resistant coating - Helps limit moisture buildup that encourages mold growth in high-humidity areas.
• Temperature-stable formula - Designed not to drip in summer heat or become brittle in colder seasons when properly applied.
• Low-odor and surface-safe - Water-based, non-corrosive formulation suitable for use in occupied spaces when used as directed.

FAQ

Q: On which surfaces can this coating be used?
A: It is suitable for many mineral and hard surfaces such as concrete, cement render, brick, tile, grout and stone. Always clean, dry and test a small inconspicuous area first.

Q: How is it applied?
A: Clean and dry the crack or joint, then spread an even layer of the product over the area. Allow approximately 24-48 hours to cure and form a fully waterproof film, depending on thickness and ambient conditions.

Q: Is it suitable for constant immersion (e.g. pools)?
A: It is designed for splash and intermittent water exposure on walls and floors. For structures under constant water pressure, use a system specifically rated for full immersion.

Q: Can it be painted over?
A: Once fully dry, many water-based paints can be applied over the transparent film. Check paint compatibility and test on a small area before full application.