Thompson’s Leak Fix Clear Waterproof Sealant 310ml for Exterior Surface Sealing and Repair

Thompson’s Leak Fix Clear Waterproof Sealant 310ml for Exterior Surface Sealing and Repair

When leaks strike, Thompson’s Leak Fix 310ml provides an immediate, reliable solution. This high-performance clear sealant is specially formulated to seal and repair virtually any exterior surface, delivering long-lasting waterproof protection. Its unique flexibility makes it perfect for high-movement joints around doors, windows, and other exposed areas.

Whether you're protecting against driving rain or sealing fine cracks, Thompson’s Leak Fix is a go-to choice for both homeowners and professionals. Best of all, it can be painted over with either solvent-based or water-based finishes, making it as practical as it is effective.

Features and Benefits

All-Weather Sealant
Provides an instant, watertight seal on most external surfaces to prevent water ingress.

Clear, Paintable Finish
Dries clear and is compatible with both solvent-based and water-based paints and stains for a seamless repair.

Multi-Surface Compatibility
Ideal for use on windows, doors, roofs, and exterior walls, bonding to brick, wood, metal, PVC, stone, and more.

Flexible and Durable
Forms a tough, flexible seal that accommodates surface movement without cracking or splitting.

Quick Application
Easy to apply using a standard sealant gun – ideal for urgent repairs and general maintenance.

Specifications

• Brand: Thompson’s

• Volume: 310ml

• Colour: Clear

• Application Method: Sealant gun

• Paintable: Yes, with solvent-based or water-based paints and stains

• Location: Exterior

• Finish: Clear

• Drying Time: Varies; typically touch dry within hours, fully cured in 24 hours

• Flexible: Yes

• Waterproof: Yes

• Recommended Uses: Windows, doors, roofs, external walls, general outdoor sealing

• Guarantee: Statutory