How do I apply FLEX SEAL® LIQUID? – Official Guide
/Q: How do I apply Flex Seal Liquid®?

Q: How do I apply Flex Seal Liquid®?

A: Stir can well and wear protective clothing. Make sure the surface is clean, dry and free of grease, oil and dirt. For better adhesion, you can etch the surface with sand paper or steel wool. Make sure all cracks and holes have been completely filled and Flex Seal Liquid® is completely dry before testing product. If you do not intend to use all the product at once, it may be a good idea to pour some out into another container and reseal the original Flex Seal Liquid® can.

To brush or roll: We recommend applying Flex Seal Liquid® in thin even coats. Apply several even coats until the surface has been completely covered and all cracks and holes have been filled, allowing up to 24 hours for each coat to dry. Flex Seal Liquid® needs 24-48 hours to fully cure. If the leak persist, apply additional coats. Always brush or roll over a larger area than just where the leak occurred.

To dip: Put object directly into Flex Seal Liquid® making a slight swirling motion. Once you feel surface has been coated, remove and let any excess drip back into the can. Hang or clip the object in the same vertical position as it came out of the can and let dry. Once Flex Seal Liquid® is fully cured you will have a super strong, waterproof, rubberized coating on the surface.

To pour: You can also pour Flex Seal Liquid®, applying it directly on the surface to allow it to fill into cracks, holes and hard to reach areas. Continue to pour until the surface has been covered and all cracks and holes have been completely filled.


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2019-12-06T14:44:46-05:00