How to Apply Flex Tape® the Right Way | Official Site – Flex Seal® Family Of Products

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How to Apply Flex Tape® the Right Way


Flex Tape® has been shown to work effectively in a variety of situations. However, for best results, it should be applied the correct way.


How to Apply Flex Tape®

1. Measure and cut, preferably with a razor blade.
2. Clean surface of any dirt or oil.
3. Remove transparent backing.
4. Press firmly to apply, removing any air pockets.


We recommend cutting Flex Tape with a razor blade and make it the correct size before applying it. You can also use scissors, but after several cuts the adhesive in Flex Tape may affect the scissors ability to cut.

Make sure that you have removed the protective film, and press down firmly for best results. You can use a squeegee, roller or a flat item like a ruler to really press the tape onto the surface. Make sure to remove any air pockets. Flex Tape will adhere right away, but it gets stronger over time, so let it sit for 24 hours if possible.

Tip: You can use a hair dryer on the back of Flex Tape to increase the bond to porous surfaces, such as concrete.

Flex Tape works on most surfaces, including: acyrlic, metal, steel, copper, aluminium, wood, ceramic, porcelain, tile, glass, rubber, fiberglass, stucco, plaster, stone, cement, concrete, drywall, EPDM roofs, some plastics, fabrics, vinyls and more.

Once fully bonded, Flex Tape cannot be re-positioned, so don’t try to move it and re-use it. Flex Tape may not work on some siliconized surfaces, greasy surfaces, water-repellent surfaces, or surfaces with harsh chemicals present (acids, mineral spirits, acetone, etc.) Please note that Flex Tape is only recommended for normal hydrostatic pressure. It is not meant to withstand high pressure, such as a pressurized pipe or engine machinery.

Using Flex Tape® on Above Ground Pools
It is also a good idea to apply Flex Tape to both the inside and outside of a container when possible. For example, with an above ground pool with a leak, apply a piece of Flex Tape to the inside first, then place another piece of Flex Tape to the exterior.

Using Flex Tape® on a Hose
For best results when using on a hose, apply a small piece of tape over the hole. Then wrap another larger piece over the first layer. Add another layer if needed. Flex Tape may not work with all hoses, and is not recommended for applications with high water pressure (such as hoses in a car engine.)

If you have any questions, feel free to reach out to our customer service team at (833) 411-3539.