Powder Paint Not Curing

Hi guys, having problems curing a few colors like chart, pink, and orange. I've used an expensive convection/toaster that has always worked great so I'm not sure what the problem is. This last batch I made some jigheads for myself in white pearl, pink, orange, and chartreuse in 1/8-1/2 oz and all of them chipped like they were never cured except the white pearl which is as tough as it should be - beating on rocks and the lead dents and doesn't chip.

I'm guessing I have a temperature problem? I cranked it up to max (450) and ran it at least 30-40 minutes from a cold oven like I always do.

I still had to pop eyes out of what were clean before baking so the trouble colors are liquefying with the heat, but not holding it long enough to cure?

Some of the paint is old and some is very new and it's all been dry so that's not an issue.

I have a serious order coming up and need to get things worked out.

What comes to mind first is have you checked the temps with an oven thermometer? Mine was off quite a bit and had to set it at about 310 to achieve 350.

Next is the amount of paint on the head. I wonder if too much paint is making it brittle. That happens with Gel coat on boats. Overheating the heads when coating may have too much paint for it to be flexible.

I know that you're no rookie at this so please don't take offense, but this is what went through my mind as I read your post. I haven't done any in a while and need to pour and paint some for myself. Regardless, I'll be paying attention to find out what you turn up as a solution.

@450 sounds like you are over curing. Need to verify your temp. You can always cure at a lower temp for a longer time. Paint flowing into the eyes is too much paint.
Who's paint?

Yeah I don't use a fluid bed, just dip so a bit extra paint is normal. I don't have any kind of thermometer that I can stick in there. Is over curing a thing? I didn't realize it would/could degrade it.

I'm using all Pro Tec paint.

I was taught on curing powder paint,we like using a heat gun,heat your lead dip in powder paint heat again,Dip in a jar of water ,you want to hear the sizzle when you dip in water,the sizzle cures the paint,Ready to fish!! our opinion.Never have a chipping problem!!

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Originally Posted by jackie53

I was taught on curing powder paint,we like using a heat gun,heat your lead dip in powder paint heat again,Dip in a jar of water ,you want to hear the sizzle when you dip in water,the sizzle cures the paint,Ready to fish!! our opinion.Never have a chipping problem!!

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If that works, it would certainly be a lot faster than the toaster oven.

This could be A problem with the heads and not the paint. I take sand paper and rough up to remove casting residue and provide A good base for the paint. This from A newbe.