How to Decorate With Spray Foam Insulation


Creating homemade crafts can often feel like connecting the dots. If you are looking for a project that will come out uniquely every time, consider decorating with spray foam insulation. The way the product expands will ensure that every creation that you design will be different than the last. Using some simple casting and painting techniques, you can create anything from wall art to Christmas ornaments.

Things You'll Need

  • Spray foam insulation
  • Plaster of Paris
  • Paint
  • Wax paper
  • Wood
  • Nails
  • Staple gun
  • Determine the shape of your craft project. Create a rough outline of the shape by nailing together pieces of wood. Alternatively, skip this step and make a free-form creation.

  • Staple wax paper to the inside of your frame if you want to remove the foam after casting. If you wish to use the wood as part of the design, fashion a back for the frame out of wood or cardboard, and cut it to fit the design.

  • Spray the foam into the frame or into a free-form shape. Don't fill the frame all of the way as the product will expand immensely. Allow the foam to expand and dry.

  • Once the foam is dry, cast it in plaster of Paris. If you used the wood as a mold, remove the foam. Mix the plaster per the instructions for your brand. Carefully paint the plaster all over exposed areas of foam while taking care not to loose the intricacies of the foam design. Allow the plaster to dry.

  • Paint your creation in whatever way you see fit. Be creative and finish your project with a glossy overcoat to protect your artwork.

Tips & Warnings

  • Instead of using plaster of Paris, try curing the foam with simple, watered-down glue. If applied correctly, you can then spray paint the design.
  • Spray foam insulation is generally meant for outdoor use. Follow the instructions on the can before attempting to use the foam indoors.
  • Do not spray paint your foam unless you are positive that you have covered it all in plaster. Spray paint will eat away the foam and cause you to loose the shape of your work.


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