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rive_gauche
okay so my car has a bubble under the paint.
i took a flathead to it and scrapped it a way to find a very small area of corrosion type stuff. not rust. it was grey. It's solid. I can't easily dent it or chip it away.
i sanded the area down and repainted it with crummy "color matched" auto paint from a can which looks the part. It's just a small area near the wheel well and i'm not looking for perfection. It's a '07 VW jetta that i'm just trying to get to last for another few years.
Anyway the bubble formed again in about two weeks.
So i re-sand it down, this time more aggressively and then use filler in the area of question to try to seal any micro perforations and then I sand it down, repaint it. It looks good until the next rain that i drive in and then immediately re-bubbles. I am sure water it leaking in behind the paint, but i can't seem too correct the problem.
Any advice? I'm thinking of creating a small dent in which to heap up filler. unless some one has other advice.
I cannot get to the inside of the panel easily.