Pop Posted December 17, 2004 Report Share Posted December 17, 2004 What is the usual and not so usual cause of flashing on jigs after molding? I am using a 2/0 Mustad 91715 hook in a mold that calls for Eagle Claw 2/0 630 or 635 or 640 and the hook seems to fit well, but I am getting alot (all around the jig) of flashing. I am smoking the mold and getting it very very hot before putting the hooks in place. Can't figure this one out. As always, any help is appreciated. Pop Quote Link to comment Share on other sites More sharing options...
Party Crasher Posted December 17, 2004 Report Share Posted December 17, 2004 It's nearly always from the two halves not coming together completely. Make sure that this hook is not allowing the mold to come together. You may neet to file it out. Is it a new mold? Is it a Do-It Mold? Some older molds and brands other than Do-It do not close up tight like a Do-It. Quote Link to comment Share on other sites More sharing options...
jigmaster Posted December 17, 2004 Report Share Posted December 17, 2004 Crasher is dead on..........if you are trying to use a hook that is not recommended for that mold, they dont always close tightly. Try squeezing the handle TIGHTLY when pouring, or better yet, get the dremel out and start modifying the cavity. let us know how you do. Quote Link to comment Share on other sites More sharing options...
Mr B Posted December 17, 2004 Report Share Posted December 17, 2004 Tiny pieces of lead get stuck on the flat surfaces of the mold. After closing the mold they get flattened out and are hard to see. Usually they are a tiny dark spot on the flat surface. Take a thin single sided razor blade, with it almost flat to the molds face use it like a wood plane. You will be amazed to see the little flecks of lead removed from this surface. These little flecks will make it so the mold will not close fully. Hope this helps. Mr B Quote Link to comment Share on other sites More sharing options...
Celticav Posted December 17, 2004 Report Share Posted December 17, 2004 hopefully it is some stray lead and not a warped mold. I am with jigmaster on this one, grab your dremel! LOL, but first try a scotchbrite pad and brass brush to knock that stray lead off, polish your mold up nice with a dremel buffing wheel before re-smoking it and you should be fine...kitchen matches are my favorite over a candle, the smoke is more sootier. If you have altered the mold in the past then too much material may have been removed from the mold allowing the flash so if thats the case it may need some more "adjusting". JB Weld is great for filling in those spots that you might have been too eager with on the original adjustment...cussing is optional but seems to help. Hope it helps, JIM Quote Link to comment Share on other sites More sharing options...
LedHed Posted December 18, 2004 Report Share Posted December 18, 2004 Pop What is the brand of mold are you using? The older style molds (Palmer, Ament, and Herter?s) will give you headaches. Try loading your mold, close it, and hold it snuggly up to a light source. Turn it side ways so you are looking at the sprue holes or the opposite side. If you see a thin white line it?s probably the hooks. A slightly oval line could be warped mold. If you are going to ?grind? ? less is best. Oiling the hinges is good. Quote Link to comment Share on other sites More sharing options...
Pop Posted December 18, 2004 Author Report Share Posted December 18, 2004 It's a Do-It 1/4 oz. Pro model 1272, round ball with barb Pop Quote Link to comment Share on other sites More sharing options...
WidowMaker Posted December 19, 2004 Report Share Posted December 19, 2004 The hooks may br too large, there is one good way to check for this. Place the hooks in the cavities and slowly close the mold until you have a one quarter inch gap near the handles. Then carefully "pop" the mold together (dont force it) if you gat a good clear crisp clicking noise then the hooks are the right size.....if you get a dull thud the hooks are too large. Quote Link to comment Share on other sites More sharing options...
