Well I Goofed my Mold Making
5 replies to this topic
Posted 20 January 2009 - 06:56 PM
Hate to ask this cause I know dumb lol. Poured my first mold of a 2 piece mold from omoo30 the first one came out pretty good then I cleaned it up a bit before I poured the second half stood back an reliezed I forgot the release agent dang. So will I beable to cut around the mold an separate it, or start over. Also can u make a mold out of plaster paris to form featherlight plugs. I'll learn sooner or later.
Posted 20 January 2009 - 08:47 PM
You may still have a chance to peal it apart, just be very careful. I've been there more than once. Slow down.
As for the Plaster of Paris, it is possible, but are more than likely going to damage the Plaster of Paris, trying to remove the master.
Posted 20 January 2009 - 08:52 PM
Oh man I feel for ya! I really hope I don't do that myself when I attempt to make my first Oomoo mold soon.
Posted 20 January 2009 - 09:16 PM
If you have a compressor and I mean not a airbrush one .. Take a air gun and put it in one of your vents .. if it is going to part this should help. ..another tech is to slowly pull apart in a bucket of water.
Posted 21 January 2009 - 09:15 AM
not a big problem muskietom51
the 2parts of your rtv mold will bond together. you will end up with 1 part.
ok, its getting very difficult to place the hardware directly while casting, but you can still cut "free" you master and use the mold.
shown here at 4:20 if you mold is thick enough.
hint: if you cut at the outside "zick-zack", you have your mold keys!
make small cuts for better keys. with this method, you will have minimum flashing.
Edited by dramone, 21 January 2009 - 09:25 AM.
Posted 21 January 2009 - 05:15 PM
wow wasnt so bad after all. I mixed parta an b an applied release agent first lol. Kind of a pain pouring out of those cans anyone have a better Idea, maybe a siphon from a syringe. Well this is my first attempt at this i'm learning see how it come out about 2 hours, I'll let you know .