might be you have it too hot or if you're dipping in a jar you might not have it stirred up and fluffy. or you might have left it in too long. If you have oil on the file that could do it.
this happens on mainly my chart green paint a little on hot pink. The jig on left is after dipping and baking, there are small holes where the paint didn't bond, I noticed it after I dipped it and figured it would fill out when I baked it but it didn't. The jig on the right is what I start with, after I break the sprue off I take a file if needed to file down some high spots. I am using a propane torch throttled way back to heat my jigs. The only thing I can think of is there might be oil on the file, thats why its not happening to all of them. Any help is appreciated.
MrGoodtime LIKED above post
might be you have it too hot or if you're dipping in a jar you might not have it stirred up and fluffy. or you might have left it in too long. If you have oil on the file that could do it.
My guess is too hot, I have that problem with the greens the most. Problem is I have not got a good answer cause too cool is worse.
I was using a fluid bed I tried to reheat them and and dip just the top of the head and it is almost like it repels the powder, I will try and clean some with alcohol wipes and dip a little cooler.
I have the same problem at times. I have found holding them in the fluid bed a couple more seconds helps some times.
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The hooks have oil on them and this causes a lot of issues with small jig heads. The oil migrates to the outside of the head. I use brake cleaner on the exact amount I cast. I have been seeing this especially with EC Lil Nasties but most hooks are contaminated. If you are oiling the mold hinges the oil will go through the aluminum when heated and contaminate the heads. I clean my mold cavity's with brake cleaner then heat before I pour. Hope this helps!
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The problem is TOO MUCH air in the fluid bed. I have this issue all the time. Especially dealing with Green Chartreuse (the color in your photo). There are other colors that will do it too. I really depends on the grain of the powder paint. Some powders are fluffy (like pearl, black, and purple) some are granular (like Hot pink, green chartreuse, and Blaze orange). I sell thousands of jigs per year and am working with these colors all the time.
A couple things you can do. Turn down the air until you don't get any bubbles in your powder. Move the fluid bed from side to side. The powder should look like water moving back and forth. When it is boiling, you will get the air pockets in the paint and cause poor adhesion. Another trick if you cannot get the air down low enough is to pull your paint cup up out of the bed a little bit. I have one paint (pearl) that I can turn the air all the way off and it still bubbles too much. By moving the paint cup up in the bed it removed most of the air and allows it to escape out the side.
Re-dipping the head "might" help however you run into the issue of excess paint causing paint nipples when you bake them. Another trick is that you might not have enough paint in your pain cup. That will also cause an issue. For me, after I run several hundred of one color, when the head starts to do this, I have to add more paint.
Again, I'm not sure of the size of your fluid bed, but if you are running small jigs and not doing giant production, you may want to drop down to a smaller bed (2 inch) to conserve paint (IE, you will have more volume in a 2 inch bed than a 3 inch with the same amount of paint).
I have OCD "Obsessive Crappie Disorder"Scoot LIKED above post
Thanks, I will try that. I have a 2 inch fluid cup I bought on ebay from a person that I believe is a member on here. I never thought about to much air. I put all my painting stuff away after the same thing was happening with blaze orange like you described, I have enough made for now and am on to making blade baits and catfishing sinkers now but will play with my air when I do ger back to painting.