Using gelatin for moulds and prosthetics

Step 4 Using the basic mix

The basic mix has a number of properties. It is strong enough to take a fair bit of undercut, though not as strong as RTV rubber. It can be used to make moulds by simply warming it in the microwave until it becomes liquid, pour it over the pattern, allow it to cool and then remove the pattern.
It will cast almost any cold cure material such as resin or plaster, as long as the pattern can take the heat when pouring.

The basic mix also has a few other properties of interest. It has almost exactly the same mass and elasticity as natural muscle. Therefore it can be used to cast excellent prosthetics, you can use a plaster single mould, such as the ones used in my other 'ibles, or in a two part mould to create face masks and suchlike. These are described later in this 'ible.

Here is a link to the work of Peter Gaal (a true genius) using a latex bald cap and a gelatin 'nose' prosthetic to create an alien girl:

The work of Peter Gaal

Below is how to use it to make a simple mould. I have used the gelatin to cast a bolt to show the undercut it will take. The resin cast has retained the thread pattern.

Remember that resin heats up as it cures. Too big a piece and the heat will start to melt the gelatin.