Flex Seal™ Rubber Spray FAQ

Q: How much will one can of Flex Seal™ cover?
A: Depending on number of coats and thickness, one large can will treat up to a 2 to 8 square feet area and one JUMBO can will treat up to 2 to 12 square feet or 40% more! We recommend you spray the area using an even sweeping motion, let it dry completely and recoat again. 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.

Q: How do I apply Flex Seal™
Shake well and spray an even sweeping motion from a distance of 12 to 14 inches. Spray a larger area than just where leak has occurred and feather edges. For best results, apply several coats rather than one thick coat and use at can-temperatures above 60°F. After each use, invert the can and apply a short burst to clear nozzle.

Q: How long does Flex Seal™ take to dry?
A: Dry time depends on the temperature, humidity and thickness of the coating. Flex Seal Rubber Spray will usually dry to the touch within 2 to 3 hours and in 24 hours fully cure. Flex Seal™ gets stronger over time.

Q: How long will it take to receive my order?
A: Normal shipping is 2 to 4 weeks but with priority processing Flex Seal ships in only 5 to 7 days. Flex Seal™ Rubber Spray cannot be shipped overnight.

Q: Can I buy this in a retail store?
A: Flex Seal™ is not available in retail stores.

Q: How much pressure will Flex Seal™ withstand?
A: Flex Seal™ Spray Sealant withstands normal water pressure and rainwater and is not made to withstand extreme pressures.

Q: What will Flex Seal™ Rubber Spray adhere to?
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, vinyl and just about any other surface.

Q: Can I apply Flex Seal™ on a wet surface?
A: YES, you can apply Flex Seal™ Spray Sealant on a wet surface. However, Flex Seal™ will always adhere better to a clean, dry surface rather than a wet, dirty surface. Also, if the surface is wet or cold Flex Seal™ will take longer to dry.

Q: Can I apply Flex Seal™ when it’s raining?
A: YES, you can. However, Flex Seal™ may take longer to dry and a strong rain may wash away some of the liquid rubber.

Q: What colors does Flex Seal™ come in?
A: Flex Seal™ is liquid rubber and comes in black and once dry can be easily painted any color.

Q: How long will Flex Seal™ last?
A: Flex Seal™ Spray Sealant will last for years without cracking, peeling or loosing any of its strength or sealing properties.

Q: Will Flex Seal™ dry out, crack or peel?
A: NO, Flex Seal™ sprays liquid rubber which will not dry out, crack or peel; it stays flexible and pliable.

Q: Will Flex Seal™ sag or drip in the summer heat?
A: NO, Flex Seal™ will not sag or drip in the summer heat, it won’t break down.

Q: What is Flex Seal™ made of?
A: Flex Seal™ Rubber Spray Sealant is a thick, durable, mastic rubberize coating that is specially formulated to spray out as a liquid, seep into cracks and holes and dry to a watertight, flexible, rubberized coating.

Q: Can I paint it on or brush it on instead of spraying?
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.

Q: Can I use Flex Seal™ to seal the inside of a water tank used for drinking?
A: NO, we do not recommend that you use Flex Seal™ where it comes in direct contact with drinking water.

Q: Can I use Flex Seal™ to fix radiators, tires or other areas with extreme heat and pressure?
A: NO, Flex Seal™ will withstand your normal water pressure but it’s not made to withstand extreme heat or pressure.

Q: Can I use it on a gasoline tank?
A: NO, Flex Seal™ should not be used to seal a gasoline tank, oil tank or any other combustible material.

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