Instructables
Picture of DIY CONCRETE:: How-To-Make Stepping Stones

 
Supplies: CHENG Stepping Stone Molds are made of high impact polystyrene. Following the tips below will help maximize the life of your mold.

Caring for your Mold:
  • To protect the mold, place it on a plywood base board to move it around during and after the pour. Lifting the mold from the plastic rim when it's filled with concrete will cause stress and eventually the plastic mold will develop cracks. (A well cared-for mold will last a minimum of 20+ castings).
  • When it's time to de-mold, make a 'plywood sandwich' and flip the mold over using the wood, not the plastic rim.
  • After the concrete is released, the leftover residue in the mold can be cleaned off with light soap and water.
 
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Step 1: Prepare Mold

Picture of Prepare Mold
inst_stepstone_01_mold_release.jpg
Before mixing the concrete, make sure the mold is clean and clear of dirt. If it has been used before, clean it up with soapy water or denatured alcohol. Using mold release is recommended but not necessary.
  • Simply brush a little bit of light vegetable oil or mold release in the form.
  • If the oil makes little puddles, you've used way too much. Soak up the excess with a paper towel.
  • Too much mold release will make air bubbles in the surface.
  • Not using mold release can make the stones more difficult to de-mold, and you'll need to be more careful about damaging the mold.
Now place the mold on a plywood base board for the remaining steps. The board can be anything rigid, but should at least be flat and wider than the protrusion of the mold.


racoontnn1 year ago
It seems to be an old idea, but executed perfectly: the paintings, ornaments, bas-reliefs. And a good idea to use plastic tile in a form. Thank you.