Variations of techniques that can be used once you have a Positive Relief Mold

This is where it gets very interesting. You can use a mold and make an object by pouring all sorts of materials into the coated frame relief.  Cement, plaster, Forton MG, silicon or epoxy are my most common materials. Each material can be used for different effects. If you go straight to cement then the frame is the mold and hopefully the cement will emerge without damaging the mold.

Whatever material you use the first casting will be the opposite, so if you printed a positive then a negative will be the result. With a relief it doesn't matter much unless there is lettering involved or you are concerned about the direction of the image in the final piece. I have taken to making a solid object of high detail with the first pour using a material called Forton MG. This is a melamine based plaster that creates a ceramic like finish, then I use that solid object as the original casting and make a silicon mold of that for production purposes.