Rob Olling Posted January 15, 2004 Report Share Posted January 15, 2004 If I super glue the lure to the bottem then I will have to sand away about 3/16" of resin to get to the 1/2 way point. Is ther an easier way of making a 2 piece? Going to try making a mold of my crappie lure tonight. Quote Link to comment Share on other sites More sharing options...
redg8r Posted January 15, 2004 Report Share Posted January 15, 2004 Hi Rob, Making a 2 part resin mold is tougher than it seems, problem is, resin will shrink somewhat while curing & this leads to problems with the 2 parts not lining up with one another, or even running into one another. Theres a way to do it but the way i do it requires an RTV master/mother mold (a mold of my mold) then I mix enough resin to fill both halves of my mold & pour them both at the same time, this allows the halves to cure at the same rate & since the resin is mixed equally it usually cures evenly allowing the 2 halves to match. RTV has no noticible shrinkage, nor does plaster or putty those might be other options for ya. If you had a rigid copy of your bait (instead of soft plastic) you could bury half of it in clay & then cast resin over it. If you still wanna try it I recommend you do like you said: mold the whole bait, but dont overdue the catalyst & cure it slowly in a cool place. Heat & over-catalyzing will encourage more shrinkage. Sand away half, Drill your keyholes, Apply a wax based mold release to the sanded face of the mold. Replace your bait in the half cavity & pour your second half. Good luck bud, its all a learning experience. Quote Link to comment Share on other sites More sharing options...
Mercury Posted January 15, 2004 Report Share Posted January 15, 2004 Hey Rob, I thought someone offered this tid bit up earlier, If you take somthing like modeling clay, push the lure down to the half way point,, Then when you add your casting material the lure will then be set to the correct depth. (dont forget the alignment pins) When the resin hardens up, remove the clay or what ever you were using, Use a release agent, put this on the face of the mold as well as the bottom of the lure. and the pins too. Pour on your top layer and poof. be careful with the resin, it is harder but also brittle. I hope that helps a bit. More info is on 2 part molds if you use the search feature, Quote Link to comment Share on other sites More sharing options...
Rob Olling Posted January 16, 2004 Author Report Share Posted January 16, 2004 I went and got some plaster to try, but I think I am just going to need a aluminum mold. Quote Link to comment Share on other sites More sharing options...
