This Instructable shows how I made a foam latex prosthetic chin. And how I applied the prosthetic as part of an old age makeup.

Step 1: Sculpting

I sculpted the prosthetic over an altered Ultra-Cal 30 lifecast, using cheap oil based clay, dental carving tools, and a few loop tools.

Step 2: Molding

I started molding, by using more oil based clay to make the run off area and mold wall, then I sealed the exposed Ultra-Cal with mold soap. Once that was dry I mixed up a slightly runny batch of Ultra-Cal 30 and brushed it into all of the detail. After about 45 minutes, I mixed a second batch and saturated some pieces of burlap in it, then I put the saturated burlap onto the face. For the third and final layer, I mixed up a thicker than usual batch of Ultra-Cal 30 and brushed it on.

Step 3: Casting

To cast the prosthetic, I started by lightly choosing the positive and molds with monster makers foam latex release. Then I mixed up a batch of foam latex, following the monster makers instructions. Then I carefully brushed the foam latex into all of the detail, poured the rest of the foam latex into the mold, closed the mold, and used a mold strap to hold the mold tightly together. Then after about 15 minutes, once the foam had gelled, I placed the mold into an oven that was preheated to 170 degrees farrenheit for 2 and a half hours.

Step 4: Applying

I prepainted the prosthetic by coating it with pros-aid, to seal the foam latex. Then I used skin illustrator to paint the prosthetic a basic skin tone.

For the application, I began by brushing Pros-Aid onto the inside of the prosthetic and my face. Then once the pros-aid was dry I carefully laid the prosthetic down on to my face, starting with the chin and working my way outwards. The next step was to coat the edges of the prosthetic with pros-aid, trying to hide where they end. Then I used liquid latex for old age stipple. When everything was dry I then used several different colors of skin illustrator to blend the prosthetic into my skin and to lighten the color of my eyebrows.