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Out Now: Stormdry Leak Seal

Published on 20th Oct 2025

Gutter and roof leaks can focus moisture onto exterior walls to cause even worse problems.

Stormdry Leak Seal is an emergency paintable liquid rubber coating that permanently stops water ingress fast. Moisture curing means high performance in damp conditions.

It's easy to brush on and self-levels to fill cracks and holes up to 6 mm.

500ml Stormdry Leak Seal (white B/G)

Features

  • Moisture-curing – apply to damp and dry surfaces

  • Seals and bonds to brick, concrete, aluminium, steel, lead, PVC, roof felt, tiles and fibreglass

  • Solvent-free and isocyanate-free for low VOC

  • Self-levelling to cover cracks up to 6 mm

  • Neutral cure system – safe for use on metals

  • UV-resistant

  • Overcoatable and overpaintable

  • Quick-drying for emergency performance

The solution to exterior traumatic damp.

Delivers long-lasting flexibility without the need for primers or solvents. Simply brush or pour right on the defect. Tack-free in 20 minutes. Full cure within 48 hours. More than one coat can be applied if necessary.

Hybrid adhesive technology allows Stormdry Leak Seal to re-attach tiles and roofing felt.

Please note that Stormdry Leak Seal should not be used on pipes or surfaces under pressure.

Stormdry Leak Seal is available now in 500 ml tins.

NEW 500ml Stormdry Leak Seal (white B/G) Waterproofing
500ml
£18.99
Get it on 8th December

Get it Done

Stormdry Leak Seal One coat hybrid polymer adhesive formulated for emergency leak repairs and prevention.
£18.99
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Next-Day Delivery Icon Same-Day Dispatch Next-day delivery Quick Easy Icon (Chrome) Hassle-Free Returns 30-day return policy Manufactured in the UK icon (Cropped, Chrome) Manufactured in the UK Over 40 years of innovation Excellent Rating Icon (Cropped, Chrome) First-Rate Technical Support Trustpilot rating - Excellent
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