foam sandblasted sign

Step 4 Finishing up

when the paint is dry, remove the stencil and tape and coat out with a water based coat of paint or primer then finish paint using the colors of your choice. You can safely use spray paint after priming at least two times with a water based paint to protect the foam, but any little pinhole in the primer coat will let solvents get to the foam so at least two coats need to be applied. I use acrylic latex house paints and/or artist acrylic colors to paint my foam signs.