barrysbaits Posted September 25, 2012 Report Share Posted September 25, 2012 I'm attempting to make an RTV mold. What's the best way to secure my master,which is soft plastic, to the mold container? I've tried super glue and it did'nt hold the master very well. Any suggestions would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
finesse1331 Posted September 25, 2012 Report Share Posted September 25, 2012 I've used super glue with good results, I usually wash my masters if they are made of plastic with warm water and soap to get rid of any oily residue. Another option that I've tried is double sided tape,it stick pretty good to the master and the mold container.........good luck. Quote Link to comment Share on other sites More sharing options...
MonteSS Posted September 25, 2012 Report Share Posted September 25, 2012 I used super glue and it stuck very well. I believe when you have a soft master you should make a hard mold (pop, resin) and a hard master is for soft molds (silicone) Not sure if this is a must or not. ....Bill Quote Link to comment Share on other sites More sharing options...
FishnFreak Posted September 25, 2012 Report Share Posted September 25, 2012 I'm a newbie and certainly no expert by any means but I have found that the cheap super glue worked best for me. I'm talking about the dollar general brand, or the ones wal-mart carries that have 4 small tubes for $1.87 or something that. From experimenting with both expensive and cheap super glue, it seems the high end glue doesn't hold as well. Why this is I'm really not sure... but anything that works best AND is the cheaper alternative in this hobby is a God-send. Quote Link to comment Share on other sites More sharing options...
FishnFreak Posted September 25, 2012 Report Share Posted September 25, 2012 Oh I forgot. This may get some interesting feedback, but there is a product that automotive stores carry called permatex one minute gasket maker. Its a silicone based product that is a super mess to work with but the advantage is that it will dry and it can be removed completely with no trace. Kinda peels off like a sticky rtv in my opinion. I wouldn't suggest using it unless the master has a flat surface thats being attached to the bottom of the mold box because it will blend with the rtv and leave ugly black spots in the finished mold. The spots are completely harmless because the permatex is a silicone product, but its an eyesore. Good luck and post on here if you find something better than super glue! Quote Link to comment Share on other sites More sharing options...
softworm Posted September 25, 2012 Report Share Posted September 25, 2012 I use double sided scotch tape Quote Link to comment Share on other sites More sharing options...
