I have built a few molds out aluminum for my company. We were buying them from another place and the ones we were buying are made of tool steel. They also have some kind of finish that looks almost like an orange peel, but with a smaller, "softer" look to it. It gives the mold a matte looking finish and you can't really see the orange peel look in the overmold either. I was wondering if anyone could tell me how they do this to the cavity and if it can be done to aluminum.
Thanks