ORIGINAL: speedracerntrixie
The primer is obviously not adhering to the resin properly. Here are a few possible causes in order of likely hood.
The really bad news is that it really can't be fixed at this point. your options are to strip it and start over, the paint should peel off in sheets so it won't take long.
Live with it or each time a blister forms, mix up some epoxy and inject the blister. You will have to squeeze any excess out then put down a square of chromite tape, some release film, some bagging film and then apply vacuum. This will apply enough pressure to glue the blister back down to the epoxy surface.
[X(]Yikes!!![X(]
After chasing a couple blisters on the P-51 last summer it seems to have survived the heat so far this year with no more occurences. Hopefully the KI-61 will follow the same.
I was going to inject these from below with some slo-cure CA then clamp them with some blocks. Luckily these blisters are above the area of the split flaps so I can work from the underside. The one that I cut I'll spot repair differently.
Last go 'round I had some luck wth cutting the blister away, sealing the edges with CA then spot puttying and repaintng the repair to blend. It's just a tedious way to have to chase blisters for the rest of the summer. Either that or put it away and maiden next year or only take it out on cloudy days
Hadn't thought of vac bagging it. That's a great idea for any that may come up in areas that I can't get to the underside of, Thanks!