This topic has 4 replies, 5 voices, and was last updated 3 years, 10 months ago by Batul Rizvi.

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  • #14816
     EvanWRapp
    • Experience: 5-10 years
    • Scenic Status: Full Time Regular

    What products have you all used to hard coat foam?

    I was recently introduced to Smooth-On products and enjoyed working with them but am curious about other options.

    #15474
     Zaling
    • Experience: 15-20 years
    • Scenic Status: Full Time Regular

    I’ve had good luck with Styrospray 1000.

    #15475
     Anonymous

    I’m a fan of Foamcoat if you need hard and FR (also tintable). Or Jaxsan if you can have a slighter softer elastomeric coating.

    #15476
     Rachael Claxton
    • Experience: 5-10 years
    • Scenic Status: Full Time Regular

    • Partner
      Partner Member

    We’ve also recently started using clay powder mixed with glue to make a fairly durable coating. Not enough to walk on but it certainly does the trick for foam on walls, prop pieces, etc.

    #15477
     Batul Rizvi
    • Experience: 10-15 years
    • Scenic Status: Other

    • Member
      Member Member

    I’ve charged a show with foam rocks that had to withstand weight. Actors were able to stand, sit, jump, and walk on these rocks, which also had to able to roll on stage. Extruded polystyrene was applied to wood with green glue, and then carved.

    We coated them in a scenic dope made of: plaster of paris, white glue, relatively fine sawdust, jaxsan, joint compound, a bit of water, and Rosco Off-Broadway paint. Essentially an extremely strong binder, some filler, some vehicle, and a bit of pigment to tint. The mixture was applied between layers of cheesecloth and took about 20 hours to dry (overnight). Worked really well! I can see how dry clay powder could also help in this situation.

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