Post by oodelollie on Apr 30, 2019 14:51:44 GMT -5
Hi! I made my first mold last week and only had enough liquid silicone rubber material to cover two thirds of the item. It was time sensitive, so finished the mold and it worked out fine with a resin cast. However, I would like to make several more items from this mold- but would like to include the last one third of the original. Can I place the original in the already cast mold and pour additional silicone putty to complete the mold? Or will I have to recreate an entirely NEW mold? I used two entire jars of silicone putty for my first cast- so was hoping to salvage this piece. Thank you so much!
Last Edit: Apr 30, 2019 15:01:47 GMT -5 by oodelollie
You can do what ever you need to do to that mold....cut out and remove pieces... pour/add RTV Silicone rubber....RTV Silicone rubber bolds to itself quite well, so a new pour over the existing mold is quite easy and simple to do to make a one part mold.
Brian's right on the mark, there are a lot of times that I've made mold that happen to have a thin spot somewhere and simply added more silicone to fix it. I've even used putty type to reinforce a liquid type mold with no problem. I've also recycled bad molds into new ones by cutting them up and adding them to a new one.