# How to Paint Extruded Polystyrene
Extruded polystyrene is a type of rigid, energy-efficient, moisture-resistant insulation foam. If you have exposed extruded polystyrene foam somewhere in your home, you can help make it blend in by coating it with paint. However, you must choose the appropriate type of paint for the project, or you will permanently damage the foam. In addition, you should employ specific application techniques, or you may cause chunks of the extruded polystyrene to crumble or break free.
Things You'll Need
- Blue painter's tape
- Plastic drop cloths
- Heavy-duty fabric drop cloth
- Respirator
- Acrylic spray primer
- Acrylic spray paint
- 3- to 4-inch latex paintbrush
Instructions
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1
Remove all items from the room that may interfere with your ability to access the extruded polystyrene.
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2
Protect surrounding areas from paint over spray by taping plastic drop cloths over them. Cover the floor beneath the extruded polystyrene with fabric drop cloths.
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3
Open windows and doors to provide ventilation. Wear a respirator if you are working in an area with poor ventilation.
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4
Spray a coat of acrylic primer onto the extruded polystyrene. Wait two hours for the primer to dry.
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5
Spray a coat of acrylic paint onto the primed extruded polystyrene. Wait two hours for the paint to dry. Apply another coat if the primer shows through.
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