zoeysports Posted May 25, 2009 Report Share Posted May 25, 2009 Im looking for ideas for making a hard copy of a soft bait to make a mold for pouring i tried using just the bait for making the mold but it came out way to thick I need the bait to be hard to use as a mold for making the mold to pour into any help would be great Quote Link to comment Share on other sites More sharing options...
kbbaits Posted May 25, 2009 Report Share Posted May 25, 2009 I'm not sure I understand, you need a soft bait to be harder so you can make a mold out of it? Quote Link to comment Share on other sites More sharing options...
zoeysports Posted May 25, 2009 Author Report Share Posted May 25, 2009 yes I tried to use hobbymold 150 to make a mold but the silicone and the worm did not work well together the mold did not set up around the worm stayed soft so the mold came out to big not exact repelica Quote Link to comment Share on other sites More sharing options...
kbbaits Posted May 25, 2009 Report Share Posted May 25, 2009 (edited) Oh well there are many ways to make a mold I have used fiberglass resin many times, also you can purchase rtv from lurecraft that makes nice molds.There are other ways also but these I think are the easy ways of doing it. Also you can send your bait to lurecraft and they will make one for you. hope I helped.KB:yay: I forgot to mention that I've made molds out of fiberglass resin and poured baits out of them after 4 hrs. Edited May 25, 2009 by kbbaits forgot to mention Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted May 25, 2009 Report Share Posted May 25, 2009 The problem is, to make a hard master of your plastic bait, you need to use a soft mold material, which you are already doing. Really, there should be no need to go to a hard master, it should work from the soft. I have not heard of hobbymold 150, but it requires a mix ratio of 10:1 by weight. Are you weighing out the components accurately or just guessing? Most of these products are very sensative to mix ratios, get them wrong and you will have problems. One of the best buys I ever made was a set of digital gram scales, they take all the guess work out of mixing ratios. You have already bought the hobby 150, so I just suggest more accuracy. If it does not work out, search RTV and see what others use. Why not just go for PoP (plaster of paris). Soft master to hard mold to soft castings, is the perfect combo, plus it is very cheap. Dave Quote Link to comment Share on other sites More sharing options...
zoeysports Posted May 25, 2009 Author Report Share Posted May 25, 2009 Thanks for your help if i send lurecraft the soft bait they will make an excact copy for making the bait i just need a way of making the bait hard so i can pour the silicone over it. could i use a plaster and then make a rtv replica Quote Link to comment Share on other sites More sharing options...
zoeysports Posted May 25, 2009 Author Report Share Posted May 25, 2009 vodkaman Thanks I did use a scale and mixed exact 10-1 i think the problem is the rtv did not set up around the bait and therefore the mold was not excact and came out to big im tring to find a solutition i know someone has had the same trouble there has to be a easy fix ??? Quote Link to comment Share on other sites More sharing options...
Vodkaman Posted May 25, 2009 Report Share Posted May 25, 2009 I would save the silicone for a future job and give PoP a go. If nothing else, it will be good molding practise for you. The techniques are basically the same. Other molding materials other than PoP are, Durhams water putty and bondo filler. Lots of reading to be searched here on TU. I cannot explain the problems you are having. Usually silicon products have very little shrinkage. Don't be fooled by the very cheap price of PoP, it captures a scary amount of detail. Dave Quote Link to comment Share on other sites More sharing options...
Delw Posted May 25, 2009 Report Share Posted May 25, 2009 If I am following you right, you want to make a hard master out of a soft plastic bait that you can use pretty much of ever? make it out of rtv like you said then pour in fiberglass or another resin, make a few of them. then you will be able to modify the hard bait and or make the detail a little better, then when you get that hard master made like you want you can make molds out of anything using that master and the detail will be good. Remember however you loose detail when making a mold out of a soft bait. so some sand paper and a dremel tool can bring back your detail to the way you want it. Delw Quote Link to comment Share on other sites More sharing options...
Romeo D Posted May 28, 2009 Report Share Posted May 28, 2009 could the silicone be reacting to the plastic? I have not had problems using Omoo30 silicone with plastics. Easy 1 to 1 mix ratio and no vacuming. Quote Link to comment Share on other sites More sharing options...
Pitbull Baits Posted June 5, 2009 Report Share Posted June 5, 2009 If your looking to get a master mold made which I am doing right now. I sent mine to Bear Baits to have mold made of aluminum. So I can have a hard copy so it can't get runied and so when I pour my worms that are to be copied they all will be the same. When it comes time to make POP molds of them. I belive Del-Mart Molds will do this for you too. It is not as much as you would belive it to cost. I can't give you an amount on mine at this time I have just got it sent in. Quote Link to comment Share on other sites More sharing options...
