Photopolymer or making polymer light sensitive
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.