How To Make a Brush‑On Mold with a Lightweight Support
Step 7: Dispensing and Applying Foam‑iT 5
Measure and mix equal amounts Foam-iT!® 5. Foams expand to full volume in 5 minutes, develop handling strength in 30 minutes, and fully cure in two hours. Pour Foam-iT!® 5 into the mold cavity. Remember, these products cure quickly, so do not delay between mixing and pouring.
Make sure that, when the board is placed over the mold opening, the holes are over the mold cavity and rising foam will be able to make it through. Hold the board firmly in place while the foam rises in the mold cavity and some foam grows out of the drilled holes. After the foam stops growing, you can let go of the board.
