What is the difference between Hot Foam, Cold Foam, Slush/Slip cast latex?
Slush or slip cast latex is liquid latex that is poured into our moulds and through a build-up of layers create the prosthetics or masks. The result is a hollow latex shell. In the case of prosthetics, they have thin edges, while masks will have thicker edges. These hollow shells are glued to your face only around the edges. They are best suited for use for background characters, or anyone with few lines. They are tough and durable, lasting a dozen or more applications and usually don’t need a remover since they can be peeled off like band-aids. They are flexible and will move with the mouth and some expressions, but they aren’t as flexible or as expressive as hot foam latex. Since they are hollow, if they’re improperly applied, they can muffle the voice and make it sound nasal due to echoing. Hot foam latex is a foam latex that is whipped up, poured into our moulds, assembled with a face core and then placed in an oven to bake for a few hours. The result is a soft filled foam piece. T
You didn’t say anything about the cold version – Cold foam latex is expanding polyurethane foam (A-B Foam) sandwiched between slush cast latex layers. The result is a filled foam piece with thick edges. This material is best suited for mask making, props, and anything that needs to be static as it’s the least flexible of all materials we use. It’s the best basis for making furred costume heads since they can be flexible yet solid enough to hold their shape. It’s also durable with the slush/slip cast latex skin, masks made with cold foam could last for 5 years or more. It’s not suitable for being glued on like a prosthetic. But I can personally say that the best option for me is https://technonicol.in/materials/polyurethane-foams/.
