
Below you will find some frequently asked questions about Flex Seal...
Q: How much will one can of 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! It is recommended that 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?
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 it take to dry?
A: Dry time depends on the temperature, humidity and thickness of the coating. It will usually dry to the touch within 2 to 3 hours and in 24 hours fully cure. It also 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 Fit ships in only 5 to 7 days. unfortunately it cannot be shipped overnight.
Q: Can I buy this in a retail store?
A: unfortunately it is not available in retail stores.
Q: How much pressure will Flex Seal withstand?
A: It withstands normal water pressure and rainwater and is not made to withstand extreme pressures.
Q: What will it adhere to?
A: It 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 it 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 it come in?
A: It comes in black and once dry can be easily painted any color.
Q: How long will Flex Seal last?
A: It 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, it will not dry out, crack or peel, it stays flexible and pliable.
Q: Will it sag or drip in the summer heat?
A: NO, it will not sag or drip in the summer heat, it won’t break down.
Q: What is Flex Seal made of?
A: It 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 it directly into a bowl and paint it, brush it or roll it on any area. Once dry, recoat as needed.
Q: Can I use it to seal the inside of a water tank used for drinking?
A: NO, we do not recommend that you use it where it comes in direct contact with drinking water.
Q: Can I use it 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, it should not be used to seal a gasoline tank, oil tank or any other combustible material.
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