used to make prosthetics has quirks and idiosyncrasies, foam latex is probably the most difficult material to work with overall, from several perspectives.
First, foam latex is opaque. You can't see through it. Unlike silicone and gela tin, which can be colored intrinsically to be semitransparent or translucent, just like real human skin, foam latex is naturally opaque. To create the semblance of translucency, the appliance must be painted with numerous transparent layers ofpigment, usually with an airbrush, to achieve the look of real skin.
Second, foam latex requires a heat cure in an oven, and it cannot be the same oven you use to bake tollhouse cookies and Thanksgiving turkeys!
Why? Because third, foam latex gives off toxic fumes during the heat cure that will render your oven forever unfit for cooking. There are a few alternatives, one of which is building your own makeshift oven using infrared heat lamps in a well-insulated plywood box. I can show you how, if you're interested. I am now using an old GE consumer oven that I rewired from 220v to 110v. It's not very large, but Ican fit a two-piece mold for a full-face appliance and two smaller molds