400ml Clear Stop Leak Sealer Spray. ULTIMATE WATERPROOF SEALANT: Stop Leak Sealer Spray provides advanced, long-lasting leak protection for gutters, flat roofs, and more. This waterproofing sealant can be trusted to act as an instant leak sealer, making it perfect for fast-fix repairs and protection for guttering, flat roofs, shed roofs, drain pipes, caravans, and much more.
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