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How to Mold a Rubber Sole

Molds are made from shoe soles for comparison purposes when a forensic study is being performed as part of a police investigation. Copies of a shoe sole can also be produced from a mold. To make a mold you need to learn each step of the process. Making a mold requires the use of a pliable agent. The type of agent to use when making a mold is silicone rubber.

Things You'll Need

Utility knife
Shoe box
Molding clay
Silicone spray
Silicone rubber

Instructions

- 1
  Cut the sole from the shoe you want to mold by using the utility knife.
- 2
  Place a 1-inch think base of molding clay onto the bottom of the shoe box. Smooth out the clay so that it is flat.
- 3
  Place the shoe sole face-up into the shoe box and press it gently into the clay. Apply a small amount of silicone spray to the surface of the shoe sole and the clay.
- 4
  Mix the silicone rubber by following the instructions on the package. Pour the silicone rubber into the shoe box. Cover the shoe sole with at least 1/2 an inch of the silicone rubber.
- 5
  Allow the silicone rubber to cure or set up between 16 and 18 hours. Separate the cardboard from the mold and then remove the molding clay.

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