Do you know Any reasonable cost transparent or semi transparent photopolymer which could be used as reliefed gelatin or lithophane or woodburytype master without pressing the metal?
I am thinking silicon or polyurethane is widely available but I did not read any light sensitive one. Vinyl and epoxy and acrylic are used at rapid prototyping but they come in large containers and expensive. And I am searching for make a widely available polymer light sensitive.