Touch-up paint repair gone horribly, horribly, wrong.

2000firebird

New member
So I managed to drop a f**king steel toolbox on my hood, that got me to this problem to begin with. I should also mention that this hood is not OEM paint and was repainted by a local shop. So I began the process I've learned and used many times in the past of touch up paint > wetsanding > polishing.

The problem is that every single time i wetsanded, my area grew larger and larger where paint would go missing. I can't tell if this is burn in, or what the deal is that makes this worse and worse every time. It is not an issue of me wetsanding too hard or too long, because I'll start getting this grey areas BEFORE I've even leveled the touchup paint I just applied.

That's right, before I can even get the paint I just applied to level, it comes off white again. I used 1500/2000 for most of it. The paint would begin to disappear after about 5-10 seconds of wet sanding. My attempts doing this in the past told me this was far too short of time. when I did this on the OEM painted areas, I spent a good 5 minutes wetsanding with these grits and never burned anything. Infact I've never managed to burn paint off with this high of a grit sand paper. This is also dead center of m hood b the way, not on a corner. Moral of the story then is the problem just grew and grew and grew. I'm curious about your input on why this happened. I've successfully preformed this 'surgery' on other areas that were OEM paint and I had zero issues. At this point I'm thinking this is beyond any type of fix other than an entire repaint of the whole hood. Figured I'd just post this nightmare for everyone to enjoy. My car now looks like complete rubbish and not sure what to do about it.

well here's the pictures. There's alot of missing pictures in the sequence because I was far too angry to document every step.







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Shop who did the refinish cheated, they didn't apply a "sealer" before applying a surface primer.

Quite possible that they also did not use an agressive enough sanding media before applying the base coat over the primers. (usually 220, 320 at the least for grit size).

Nothing bonded below the base/clear, so it is coming off.

Common mistake by painters who beleive they are smarter than the paint manufacturer.

Grumpy
 
Each time you wetsand you are just thinning the already thin paint more and more, and it just keeps getting bigger. As you try to sand the touch up paint, the sandpaper is also touching the surrounding paint and you are just sanding through it. As you try to touch up and sand the area that you just went through, you are now sanding and touching the paint a little further out and thinning that, and it just keeps going and going like that as you try to fix it. There's only one fix for this and it requires using a paint gun. You need to either have the whole hood repainted again, or have the spot that got messed up blended into the rest of the hood.



This is the main reason I don't offer touch ups, this is too easy to have happen.
 
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