Use Mehron clear Modeling wax to smooth the edges on prosthetic pieces, to build up facial areas or block out eyebrows! Made from natural wax, wax will soften from the heat of your hands and harden when applied. Modeling Wax is safe to use, durable, and easily removed when you are finished. Special Effects Makeup Modeling Wax is a favorite on Broadway for daily use when Special Effects are needed for stage productions.