Fill cracks in your home quickly with Great Stuff Insulating Foam Sealant. This liquid foam sprays out of a can through a straw, directed exactly where you want to fill gaps. After allowing the foam to harden and cure sufficiently, you can paint it any colour you want to ensure that it blends with surrounding surfaces. Painting will also prevent the foam from discolouring under UV light.
- Skill level:
- Moderately Easy
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Things you need
- X-acto knife
- Medium-grit sandpaper
- Vacuum cleaner (with brush attachment)
- Latex or oil-based paint
- 2-inch paintbrush
Allow insulating foam to cure for at least eight hours. Although it will feel set and unsticky after only 15 minutes, the foam requires the full eight hours to cure to ensure it dries fully.
Trim away any uneven areas of the foam before you paint. Use the X-acto knife to cut away the hard foam to make it smooth and even with the surrounding surfaces.
Sand the foam to make it smooth. Use the medium-grit sandpaper to rub the foam lightly until the surface feels smooth.
Vacuum the foam with the brush attachment to remove dust and debris before painting.
Apply either latex or oil-based paint over the foam surface with the 2-inch brush. Match the paint with the surfaces surrounding the foam.
Allow the paint to dry completely; consult the paint can for drying time.
Apply a second coat of paint over the foam.
Tips and warnings
- The Dow Company recommends painting the insulating foam when you apply it in outdoor locations to prevent discolouration.
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