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Hot Wire Foam Factory

Exterior Foam Coat 25 lb

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TL Item#: 75949 MFR Part#: HWFF-026BULK Category: Foam Coatings

Rock hard finish for all of your outdoor (and indoor) foam projects. This stuff is super tough. It is not sandable. Has a rough stone feel when dry. It can be troweled smooth, or brushed to make a super rough finish.

  • 25 lb box
  • Adheres to polystyrene foams.
  • Forms a weather resistant surface.
  • Easy to mix. Just add water.
  • Use above or below grade
  • Apply with paintbrush or trowel.
  • Paintable
  • Fireproof
  • Many decorative surface textures can be created.
  • Soap and water cleanup.
  • Add Boost fortifier if extra strength is desired. (will not work with Bounce)


  • Coverage 25 lbs: 1/64” thick 288 sq ft, 1/16” thick 72 sq ft, 1/4” thick 18 sq ft
  • Weight: 3.40 lbs
  • Fortifier/additive: Not an additive
  • Feel: Strong/hard
  • Application time: 3-40 Minutes
  • Work time: 1-3 hours
  • Cure time: Sets up in hours but takes 5 days to reach full strength
  • Weatherproof: Weather Resistant
  • Sandable: Sandable only before completely set
  • Paint/Stain: Can be stained or painted
  • Compatible with: Boost, Mesh, Acrylic Paint, Stain


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2420 Center St, Suite 200, Houston TX 77007 | United States | 832-518-5584