Flex Glue
2,000+ five star reviews*
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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.
THAT’S ALOTTA DAMAGE® Fix it with Flex Glue.
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.
How To Use Flex Glue
FLEX GLUE® Easy Squeeze (Tube)
Surface must be free of grease, oil and dirt. Unscrew the nozzle and cut opening large enough to ensure the product can be properly dispensed. Apply liberally to one side of the surface being bonded and apply firm pressure continuously for a minimum of 10-30 seconds for instant grab to take hold.
Allow 24-48 hours for curing. Will reach maximum strength in 7 days.
FLEX GLUE® Pro Formula (Caulk Gun Cartridge)
Surface must be free of grease, oil and dirt. Unscrew the nozzle and cut off tip, leaving thread intact. Replace nozzle and cut nozzle to the desired length. Insert cartridge into a standard size caulking gun and squeeze trigger. Apply liberally to one side of the surface being bonded and apply firm pressure continuously for a minimum of 10-30 seconds for instant grab to take hold.
In some applications, bracing may be required. If needed, you may reposition object within 10 minutes of application.
Fully cures in 12-24 hours and reaches maximum strength in 7 days.
After use, squeeze a small bead from the opening to form a plug. Simply cut the plug when you want to reuse.
WARNING: May cause an allergic skin reaction. Avoid contact with eyes and skin. Wear gloves and safety glasses. KEEP OUT OF REACH OF CHILDREN.
