• Fills large gaps, cracks, and holes with an ultra thick paste that cures to a strong, flexible, waterproof seal.
• Designed for maximum coverage and heavy duty repairs on large projects.
• Clings to surfaces and can be applied on dry or wet areas for versatile use.
• Ideal for demanding indoor and outdoor applications that require a durable, long lasting seal.

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.