If you are researching can you paint over expanding foam because you are planning on painting over expanding foam in your home using spray paint is a favourable option.
Painting over spray foam.
Painting over spray foam insulation is not a straightforward undertaking.
Use foam brushes or a roller.
Regular spray paints such as latex or enamel ones eat up the styrofoam once you spray the paint onto it.
Avoid using spray paints as they will dissolve the styrofoam.
Avoid any oil based or other solvent based.
Painting over spray foam insulation is not a straightforward undertaking.
This liquid foam sprays out of a can through a straw directed exactly where you want to fill gaps.
And although it might be a way to improve the overall appearance of an insulated space that has not been covered with drywall much care must be given to the paint and the application.
This is because it takes far less time compared to painting over it with a usual bristle brush or roller.
Only water based acrylic or latex paint should be used on foam insulation whether you are using the material for crafts or are painting unfinished walls.
If you want to keep your styrofoam s shape and texture the same when you re painting it stay away from spray paints.
It is also beneficial because it is much gentler on the spray foam.
Apply as many layers as needed for full coverage and let dry.
Fill in cracks with insulating foam and then paint it.