- Read entire can. Wear face and eye protection, protective gloves, and clothing.
- Make sure the area is clean, dry and free of grease, oil, and dirt.
- Shake well: Spray 8” to 12” from surface using an even sweeping motion.
- Apply several even coats until ALL cracks and holes have been filled.
- Allow 24 to 48 hours to dry before applying another coat. Fully cures in 48 hours.
- Use Flex Seal® ONLY in a well-ventilated area. When using inside, prevent vapor buildup 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.
A: Dry time depends on the temperature, humidity and thickness of the coating. Flex Seal will usually dry to the touch within 2 to 3 hours and in 24 hours fully cure. Flex Seal® gets stronger over time.
A: Use Flex Seal® ONLY in a well-ventilated area. When using inside, prevent vapor buildup 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.
A: Flex Seal® comes in Black, Clear, White, Brite, Gray, Red, Yellow, Terra-Cotta, Blue, Green, Almond and Brown. Once dry, Flex Seal can be easily painted any color.
A: Depending on number of coats and thickness, one Large 10 oz. can will cover up to 8 ft. One Jumbo 14 oz. can will cover up to 12 ft.
We recommend you spray the area using an even sweeping motion, let it completely dry and apply additional coats as needed. Several even coats are better than one coat and each time you recoat the surface you will continue to fill in any holes or cracks and the surface will be sealed.
A: Shipping usually takes 2 to 4 weeks. Flex Seal® cannot be shipped overnight.
A: Flex Seal® will withstand normal hydrostatic water pressure such as rainwater, but it is not made to withstand extreme pressure.
A: Flex Seal® will adhere to most any surface such as: wood, metal, tile, concrete, masonry, fabric, glass, plastic, aluminum, porcelain, dry wall, rubber, cement, some vinyls and so much more! Flex Seal® may not be compatible with all plastics, vinyls, or rubbers.
A: Flex Seal® can be applied on a wet surface, or moist environment in the event of an emergency. However, Flex Seal® will always adhere better to a clean, dry surface. To ensure its longevity, we recommend you reapply Flex Seal® once the area is completely dry.
A: You can apply Flex Seal® during a light rain. However, Flex Seal® may take longer to dry and, a strong downpour may wash away the FLEX SEAL®. To ensure its longevity, we recommend you reapply Flex Seal® once the area is completely dry.
A: NO, Flex Seal® will not dry out, crack or peel. It stays flexible and pliable.
A: NO, Flex Seal® will not sag or drip in the summer heat.
A: Flex Seal® is a thick, durable, mastic rubberized coating that is specially formulated to spray out as a liquid, seep into cracks and holes and dry to a watertight, flexible, rubberized coating.
A: YES, you can spray the Flex Seal® directly into a bowl and paint it, brush it or roll it on any area. Once dry, recoat as needed.
Also, part of the Flex Seal Family of Products is FLEX SEAL® LIQUID, the liquid rubber in a can! Now you can brush it on, roll it on, dip it or pour it anywhere you need it! For more information, regarding FLEX SEAL® LIQUID, please follow the link below:
A: NO, we do not recommend that you use Flex Seal® where it comes in direct contact with drinking water.
A: NO, Flex Seal® is not made to withstand extreme heat or pressure.
A: NO, Flex Seal® should not be used to seal a gasoline tank, oil tank or any other flammable material.
A: NO, Flex Seal® is not affiliated with GAF and is not intended for use by Professional Roofers.
A: Flex Seal® Clear coats, seals, protects and stops leaks fast! However, in order to give Flex Seal® Clear its amazing transparency, we had to make some adjustments to our formula. Therefore, Flex Seal® Clear will be slightly thinner and multiple, even coats may be needed to get the job done.