mark poulson Posted April 3, 2022 Report Share Posted April 3, 2022 Forgive my if this a no/duh question, but when I cure my TJ's crinkle powder at 375 for 15 minutes per his instructions, instead of my 350 for 30 minutes norm, all of the heads deform a little, and some sag down to a teardrop shape on the bottom of the jig. I thought maybe it was just too much powder, so I tried filing the blob off, and it is the actual lead that is melting and flowing down. The jigheads are from LPO, and I've never had an issue powder coating their jigs and spinnerbaits in the past. Am I doing something wrong? Quote Link to comment Share on other sites More sharing options...
Apdriver Posted April 3, 2022 Report Share Posted April 3, 2022 Strange. Get an oven thermometer and make sure your thermostat is correct on your oven. The smaller toaster types are notoriously incorrect. 1 Quote Link to comment Share on other sites More sharing options...
Apdriver Posted April 3, 2022 Report Share Posted April 3, 2022 The other thing it might be is some kind of alloy. Lead melts at 620 degrees. I’ve never had any deform at 375 in the oven. 1 Quote Link to comment Share on other sites More sharing options...
Kasilofchrisn Posted April 4, 2022 Report Share Posted April 4, 2022 I routinely cure my jigs for 25 to 30 minutes at 400°f. Never had an issue with the jig head melting. When I say 400 degrees I actually set the thermostat slightly above 400° as my testing has shown my toaster oven runs a bit on the cool side. 1 Quote Link to comment Share on other sites More sharing options...
Fishin Big Posted April 7, 2022 Report Share Posted April 7, 2022 What size jigs are making? Here's a trick that I got from YouTube, go to SDG on YouTube and do a search of his video's. He explains it better than I can. This k eps the jig eye open and no more drips of powder paint,because that's what is actully happening, your jigs aren't melting, the powder coat is. Hope this helps. 1 Quote Link to comment Share on other sites More sharing options...
Munkin Posted April 9, 2022 Report Share Posted April 9, 2022 The only time I have had this happen is when trying to powder coat Owner heads. I suspect they have a lot of tin in them to remain shiny for long periods of time. LPO should be using spincast lead which is like 95% lead mixed with antimony but it still should not melt in an oven. Allen 1 Quote Link to comment Share on other sites More sharing options...
mark poulson Posted April 9, 2022 Author Report Share Posted April 9, 2022 (edited) On 4/6/2022 at 8:21 PM, Fishin Big said: What size jigs are making? Here's a trick that I got from YouTube, go to SDG on YouTube and do a search of his video's. He explains it better than I can. This k eps the jig eye open and no more drips of powder paint,because that's what is actully happening, your jigs aren't melting, the powder coat is. Hope this helps. 3/8 oz. I tried to file the sagging bulge off the bottom of the jig, and there was lead right under the thin layer of powder coat. I've done that in the past with heavier jigs, and it always just the powder coat that sagged. I'll check my toaster oven's temperature to see if maybe it jumps way up from 350 to 400, but that would be really strange. Edited April 9, 2022 by mark poulson 1 Quote Link to comment Share on other sites More sharing options...
mark poulson Posted April 9, 2022 Author Report Share Posted April 9, 2022 On 4/3/2022 at 2:37 PM, Apdriver said: Strange. Get an oven thermometer and make sure your thermostat is correct on your oven. The smaller toaster types are notoriously incorrect. I'll check my toaster oven's temperature to see if maybe it jumps way up from 350 to 400, but that would be really strange. I'll dial back down to 350 for 30 minutes for my next batch. 1 Quote Link to comment Share on other sites More sharing options...
Fishin Big Posted April 18, 2022 Report Share Posted April 18, 2022 not all toaster ovens have an accurate temperature, similar to ovens. Hope you figure it out so you can get some good results. Quote Link to comment Share on other sites More sharing options...
Kasilofchrisn Posted April 18, 2022 Report Share Posted April 18, 2022 On 4/9/2022 at 9:25 AM, mark poulson said: I'll check my toaster oven's temperature to see if maybe it jumps way up from 350 to 400, but that would be really strange. I'll dial back down to 350 for 30 minutes for my next batch. Even at 400°f that wouldn't melt your lead. In fact many of the powder paints I use actually recommend curing at 400° f. But a toaster oven being off 50° wouldn't be strange at all either. Quote Link to comment Share on other sites More sharing options...
Chris Catignani Posted April 19, 2022 Report Share Posted April 19, 2022 A lot of lead baits...etc... have a combination of lead-tin...sometimes as much as 2/3 of a spinnerbait head can be tin. This actually help make a larger profile. I bet those jigs are not 100% lead (melting point is 621 F) but are part tin (melting point is 450 F). 2 Quote Link to comment Share on other sites More sharing options...
MarkSpolarich Posted April 19, 2022 Report Share Posted April 19, 2022 Had the same thing happen with LPO jig heads when making bladed jigs (before buying my own mold). Since it has never happened with my lead jigs I guessed they were using tin to cut down cost, which just gave me another reason to buy a mold. 1 Quote Link to comment Share on other sites More sharing options...
mark poulson Posted April 22, 2022 Author Report Share Posted April 22, 2022 Thanks to all. Quote Link to comment Share on other sites More sharing options...
Kasilofchrisn Posted April 22, 2022 Report Share Posted April 22, 2022 On 4/19/2022 at 6:46 AM, MarkSpolarich said: Had the same thing happen with LPO jig heads when making bladed jigs (before buying my own mold). Since it has never happened with my lead jigs I guessed they were using tin to cut down cost, which just gave me another reason to buy a mold. Being as tin retails for $20 lb and lead at $2 or less(my last batch was $.95 locally) I doubt they did it to save money. Most likely for the weight as tin weighs 1/3 less than lead. 1 Quote Link to comment Share on other sites More sharing options...
