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RTV molds / Resin cast
Here is the process I've used to make solid resin copies of original hand carved pieces. I had chosen to do a two piece mold so I could mold in a thru-wire and ballast. I started to write out the process and it got lengthy to say the least, so here is a condensed version with pictures.
The mold box is PVC cut lengthwise. Fill one half with modeling clay and imbed the master half way, be sure to include some type of key ( I used marbles here).NOTE I've seen people use a dowel or something here for a pour passage here, I cut a passage later. Tape mold together, hot glue to base, mix RTV and pour the first half. Wait specified time, ( 14 hours for mine) then take mold apart and remove all the clay. Put the master in the RTV, coat the RTV with a release agent, tape the mold together, hot glue to base, mix and pour the other half of the RTV. See how wordy, and this is condensed. Heres some pics.
Douglas
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