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FLEX GLUE^®

INCREDIBLY STRONG, WATERPROOF ADHESIVE.

Our legendary, super strong, waterproof adhesive with powerful instant grab and hold is now engineered with Easy Squeeze technology (tube only) for smooth, easy dispensing. Specifically formulated to work on all types of surfaces and can be applied on dry or wet surfaces, even underwater! Solvent-free, paintable, sandable, and won’t run or drip so it can be applied overhead. It’s UV, chemical, and mildew resistant too, making it ideal for both indoor and outdoor use. Also available in Pro Formula cartridges with even more instant grab and hold power.

• NEW! Easy Squeeze Formula (tube only)

• Interior and exterior home repairs

• Seal out water and air

• Roof and siding repair

• Bath and shower fixes

• Shoe repair

• Furniture repairs

• DIY projects and hobbies

• Auto and boat repair

• RV and motor home repair

• Brick and stone bonding, and more

Works on: porcelain, metal, steel, stainless steel, fiberglass, marble, stone, laminate, granite, glass, foam, fiberglass, drywall, concrete, cinderblock, ceramic, brick, asphalt, wood, stucco, plaster, some plastics, composites, EDPM, EPS, PVC, and more.

Available in WHITE and CLEAR.

Squeeze Tube (Easy Squeeze Formula): Available in 4 oz for clear / 6 oz for white.

Caulk gun cartridge (Pro Formula): 9 oz for clear / 10 oz for white.

MAX Caulk Gun Cartridge (Pro Formula) available in white only.

Please note: a caulk gun is required to use Flex Glue cartridges.

WARNING: California Proposition 65 Notice.

Fully cures in 12-24 hours and reaches maximum strength in 7 days.

*The reviews displayed do not represent all reviews submitted to Amazon.com and/or Bazaarvoice. Such reviews reflect a Flex Seal-curated selection of 5 star reviews available on Amazon.com and Bazaarvoice. Review count based on 5 star amazon.com reviews, collected between February 2018 and December 2023, and 5 star Bazaarvoice reviews from our retail partners, collected between August 2019 and December 2023.