Flex seal is a liquid rubber sealant that you can use to seal and protect surfaces from the elements. It’s easy to apply – just brush or spray it on – and it dries to form a waterproof, airtight seal. Flex seal can be used on a variety of surfaces, including metal, plastic, wood, and concrete.

How To Paint Flex Seal

Flex seal is a liquid rubber that is used to seal leaks and cracks. It can be applied with a brush or a sprayer. First, clean the surface to be sealed with a degreaser. Then, apply a coat of flex seal to the surface. Allow the flex seal to dry for 24 hours. Repeat the process as needed.

-A can of Flex Seal -A paintbrush -A piece of cardboard or plywood -A CLEAN rag

  • Wait 24 hours for flex seal to cure apply a second coat of flex seal if needed
  • Apply flex seal to the surface in a even coat
  • Clean the surface to be painted with a degreaser

-When painting flex seal, make sure to use a brush or roller that will not leave bristles or lint on the sealant. -To ensure an even coat, start by painting in the middle of the sealant and then work your way out. -Do not paint over any areas that have already been sealed.


Frequently Asked Questions

Can You Apply Flex Seal With A Paint Brush?

No, you cannot apply Flex Seal with a paint brush. It must be sprayed on.

Can Flex Seal Be Painted?

Yes, Flex Seal can be painted. It is best to use a primer before painting, and to allow the Flex Seal to dry completely before applying a topcoat.

How Long Should Flex Seal Dry Before Painting?

Flex Seal should dry for 24 hours before painting.


In The End

Flex Seal can be used to paint roofs, gutters, flashing, and other metal surfaces. The paint forms a waterproof seal that will protect the metal from rust and corrosion.

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