Have you used polyester casting resin? I am trying to make a project for a class. I need to fill a Ball Jar with the casting resin. I made sure the jar I have is the kind used in canning - so it is heat resistant. I am just trying to figure out if I can pour the whole amount in or if I need to do it in stages. I am filling up either a 16 or 32 oz. jar. The jar will have polymer clay pieces in it. Can Anyone give me advice? Thanks a bunch, Jen
