Step 16: Remove the Form

Mark Powers removes the frame for the hypertufa tabletop
Photo: Wendell T. Webber
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Flip the form over and place it on a work surface, foam facing up. Use a drill/driver to remove the screws. Push on the tail ends of the form's short sides to tilt them down and away from the tabletop. Pull off the long sides and remove the foam.

Tip: If foam still sticks to the tabletop after it has cured, slip a razor blade under the edges of each piece and pry it off bit by bit.
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    Tools List

    • miter saw
      miter saw
    • jigsaw
      jigsaw
    • drill
      drill/driver to assemble the form.
    • utility knife
      utility knife for cutting the foam.
    • aviation snip
      wire snips
    • mixing tub
      mixing tub to make the hypertufa mix.
    • masonry hoe
      hoe
    • Natural-bristle chip brush
      chip brush to spread petroleum jelly on the interior of the form before casting the tabletop.
    • finish hammer
      hammer
    • pneumatic finish nailer
      pneumatic nail gun

    Shopping List

    1. 1x4 scrap lumber for the form.

    2. cedar 1x4s for crosspieces and stretchers.

    3. cedar 1x2s for legs and support blocks.

    4. 1¼-inch and 2-inch deck screws

    5. perlite Get two bags.

    6. peat moss Get one large bag.

    7. portland cement Get a 47-pound bag.

    8. acrylic fortifier for the hypertufa mix, to prevent cracking. 9. ¾-inch rigid-foam insulation

    10. petroleum jelly or cooking spray to coat the interior of the form.

    11. ¼-inch hardware cloth

    12. plastic sheeting to cover the form while the tabletop cures.

    13. polyurethane glue, such as Gorilla Glue.

    14. 1-inch brad nails

    15. dust mask and protective gloves