Stormdry One Coat Leak Seal 500ml - Quick-Dry Roof & Gutter Seal

Stormdry One Coat Liquid Rubber Leak Seal is a fast-acting, all-weather solution for emergency roof and gutter repairs. The moisture-curing formula bonds instantly to brick, concrete, roof felt, tiles, fibreglass and many other surfaces, so you can work in damp or dry conditions without waiting for the substrate to dry. Its self-levelling property fills and bridges cracks up to 5 mm, creating a smooth, continuous barrier that stops water from seeping through. The sealant dries quickly, allowing you to finish a repair in minutes and return to normal use. Designed to resist UV exposure, the seal remains flexible and protective under sunlight, extending the life of your roof, flashing or gutter joints. Whether you need a single coat for a quick patch or additional layers for long-term waterproofing, this 500 ml black bottle delivers reliable, leak-free performance whenever a roof or gutter starts to let water in.