You now need to prepare the mold for pouring. Spread a very thin, smooth coat of petroleum jelly on the bottom and sides of the mold. Again, the shape of any lines or globs of jelly will transfer to the concrete. So you want to get the jelly as smooth as possible. It is not necessary to use a thick coat. As they say, “a little dab’ll do ya.” You can then place your glass and resist into the mold resist side down. When you look into the mold, the wrong side of the glass should be looking up at you, and the resist should be under the glass (between the glass and the mold). Place your mold where you plan to have it when pouring the concrete mixture. Use your level to make sure the surface is good and flat. Make adjustments as necessary so your stone will be an equal thickness on all sides.
The various layers of your stepping stone assembly from the bottom up are:
*Mold
*Petroleum jelly
*Resist (sticky side up)
Glass pieces (with the "right side down on the sticky stuff)
DiamondCRETE stepping stone cement
