Painting Foam Board Insulation

If you want to paint foil faced insulation you must first employ the proper preparation techniques.
Painting foam board insulation. You can paint polystyrene foam or expanded polystyrene beads using a waterborne paint to protect it from solvent attack by subsequent coats of paint. Smooth the edges of the foam with sandpaper when you re. Start with a small piece of foam in a rectangular shape. Before you start painting foam wall insulation find out whether local building codes require a fire barrier such as gypsum board.
Sanding foam insulation is only necessary if you are creating crafts or decorations. Step 1 sand along the edges of the foam to create a smooth finish. The foil facing on insulation is nonporous making it ill suited for adhesion. 3 4 foam insulation board approximately 4 x 9 hot knife wood burning tool or xacto craft knife primer black gray and white latex or acrylic paint clear polyurethane can or spray paint brushes sea sponge for painting.
Now 45 years later waterborne paints are practically the industry standard. When painting the foam insulation remember to initially prime the surface to cover up the foam. When painting foam insulation it is important to remember to prime the surface to seal the foam. Make sure to wear a face mask while doing this since the particles can be inhaled.
Foam insulation takes paint well as evidenced by its many uses in decor costuming and crafts. Mine is approximately 4 x 9. After priming to protect it the insulation was coated using the standard outdoor finish system for that equipment.