Flex Seal® Mini



Sprays out as a thick liquid, seeps into cracks and holes and dries to a watertight, flexible, rubberized coating that Stops Leaks Fast® Once dry, can be painted any color. For more color options, check out Flex Seal Colors.

• Roof and gutter repair

• Weatherize your home

• Foundation and concrete waterproofing

• Indoor and outdoor projects

• Seal cracks and holes

• Pools and pool equipment

• RV and motorhome repairs

• Auto and boat repairs

• Bathroom fixes

• Furniture repair and much more

Works on: Wood, metal, tile, concrete, masonry, fabric, glass, plastic, aluminum, porcelain, dry wall, rubber, cement, some vinyl’s and more.

Bulk Discounts

Orders over $500 - get 5% off

Orders over $2,500 - get 10% off

Orders over $10,000 - get 15% off

Orders over $20,000 - get 20% off

Discount applied at checkout.

Cannot be combined with other offers.

Flex Seal Mini
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Now all the strength of original FLEX SEAL® is available in powerful, portable Minis!

Flex Seal Mini is actually liquid rubber in a can! It sprays out as a thick liquid, seeps into cracks and holes and dries to a watertight, flexible, rubberized coating. Available in 2 oz. size, in three colors: black, white or clear.

WARNING: California Prop 65 Notice

*Review count based on 5 star reviews, collected between October 2011 and April 2022, and 5 star Bazaarvoice reviews from our retail partners, collected between June 2013 and April 2022.


Read entire can. Wear face and eye protection, protective gloves, and clothing. Make sure the surface is clean, dry, and free of grease, oil, and dirt. Shake well. Spray 8” to 12” from surface, using an even, sweeping motion. Apply multiple, even coats until ALL cracks and holes have been filled.

IMPORTANT: Allow 24 to 48 hours to dry before applying another coat.

Let it dry completely. (It usually takes up to 24 to 48 hours to fully cure.)

*Use Flex Seal ONLY in a well-ventilated area. When using inside, prevent vapor build-up by opening doors and windows. Ensure fresh air entry during application and drying.

*Do not use near heat, sparks, pilot lights or other sources of ignition.


Spray a larger area than area where the leak is and feather the edges. For best results, apply multiple coats rather than one thick coat and use at can temperatures above 60ºF.Make sure Flex Seal has filled ALL cracks and holes and is FULLY CURED before testing product. If light can pass through, apply additional coats.