Flex Paste MAX is built for the biggest and toughest sealing jobs with an ultra-thick, high build rubberized paste that clings to surfaces and instantly fills large gaps, cracks, and holes, drying to a strong, flexible, watertight rubberized coating. Seals out air, water, and moisture. Designed for maximum coverage and performance. It can be applied on dry or wet surfaces. Ideal for foundations, roofs, basements, walls, RVs, boats, outdoor structures, and other demanding repairs where a long-lasting waterproof seal is required.
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