Just a quickie - dampsanding a nightmare!

C. Charles Hahn

CCH Auto Appearance, LLC
This 2008 Toyota Camry was brought to me by a neighbor after one of his "buddies" did some collision repair work on a couple panels. The person who painted it did an absolutely terrible job of prep before he painted, and to make matters worse, the paint job was done outdoors with no protection from the elements whatsoever.



And the worst part? It's jet black.



Since the vehicle is going to be turned in (off-lease) at the end of the month, the owner didn't want (or need, really) to pay to have the entire vehicle polished out, but the panels which were refinished really needed some work. The goal wasn't to make them perfect, but rather to make them a closer match to the factory orange peel on the rest of the vehicle. So, on to pics.



Here's what I had to start with:



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First up was masking the panel edges and door handle area to protect them from potential damage:



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Next up I took some paint thickness readings to see what I was working with. Here's a reading from the door on the opposite side of the vehicle (factory paint):



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And here's a couple from the door I'll be sanding:



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Given that the readings across the panel are all over the map, and considering that I have no way of knowing exactly what was done to the panel (how many coats of clear vs. primer or base) I knew I would have to be a bit careful and watch what I was doing. I chose the Meguiar's Unigrit DA system for the task.



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Step one was eating through the trash and nibs with some 800 grit:



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Followed by going over the whole panel with a 1500 grit finishing disc:



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And finally refining the scratches down with a 3000 grit disc:



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Up to this point, here's a couple readings of how much paint has been removed:



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I compounded the finish back up to gloss with the rotary using a yellow Meguiar's SO1O wool pad and M105, followed by D300 on a MF cutting disc with the DA to remove any buffer trails (this paint was ROCK HARD!). Finally I employed Menzerna 106FA to finish up the door and rear quarter panel, which was only in need of polishing. Here's the result:



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Here's one of the final measurements for the paint:



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And last but not least, a flash shot to keep me honest :nervous2:



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Unfortunately there are a few tracers that mapped through the finish which I couldn't remove, but it's still a significant improvement and hopefully enough to keep the owner from paying a damage premium.



Thanks for looking!
 
SWEET!!! I was just talking about the fun of sanding full panels today at work!



What did you do otherwise? I am assuming the rest of the car is swirled up? Did you brushwash it to "blend" lol?
 
autoaesthetica said:
SWEET!!! I was just talking about the fun of sanding full panels today at work!



What did you do otherwise? I am assuming the rest of the car is swirled up? Did you brushwash it to "blend" lol?



:lol: All I did to the rest was an ONR wash... surprisingly it's not as badly swirled as I was expecting and as I said, since this one is getting turned in off a lease in a couple weeks, the owner didn't want to put more money into it than he had to. The dealer's reconditioning department is just going to hack it back up anyway.



autoaesthetica said:
Also Charlie, how was the color match? That's a heck of a color to get "ballsy" on for a painter.



As amateur-hour as that paint job was, I do have to give the guy credit... the match was pretty near dead-on.
 
LOL thats freakin awesome. I should get the guy up here to color match for some of the garbage that drives around WNY. I could deal with getting my sanding fix every so often.
 
autoaesthetica said:
LOL thats freakin awesome. I should get the guy up here to color match for some of the garbage that drives around WNY. I could deal with getting my sanding fix every so often.



Trust me when I say you don't want to have this guy going anywhere near other cars.... there were a lot more mistakes and problems than the pictures show.



JohnKleven said:
Black is the easiest color to match, but that was certainly some rough paintwork. Great save!



Thanks John! This was by far the worst paint I've personally ever had to deal with.
 
Nice work Charlie, that is some of the nastiest OP I've ever seen. Just a question though, why does it look like you've got a high-top fade in the first pic and not in the rest? For a second I was thinking you might be a Kid n' Play fan...:tongue2:
 
mikenap said:
Nice work Charlie, that is some of the nastiest OP I've ever seen. Just a question though, why does it look like you've got a high-top fade in the first pic and not in the rest? For a second I was thinking you might be a Kid n' Play fan...:tongue2:



:rofl Thanks! Must be an optical illusion caused by the OP and the proximity of my head to the body line in the door :o



And who/what the heck is Kid n' Play? :confused:
 
Shiny Lil Detlr said:
:rofl Thanks! Must be an optical illusion caused by the OP and the proximity of my head to the body line in the door :o



And who/what the heck is Kid n' Play? :confused:



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:madgrin: Kid is the one on the...well, it's obvious which one he is!
 
Wow, what a gutsy project! The before and after reflection photos are fantastic! What a difference! Kudos!!
 
That newly sanded panel looks wet, how much clear should a panel have before you about wet sanding it. Also do the conditions change when it's a different paint, year, age. I know this is a broad question but if someone could point me to the right resources it would make my Saturday stream along way faster.
 
Brad B. said:
Wow, what a gutsy project! The before and after reflection photos are fantastic! What a difference! Kudos!!



Thanks Brad!



hamza7 said:
That newly sanded panel looks wet, how much clear should a panel have before you about wet sanding it. Also do the conditions change when it's a different paint, year, age. I know this is a broad question but if someone could point me to the right resources it would make my Saturday stream along way faster.



Thanks! Any time you sand a panel this aggressively, you are running a pretty sizable risk since you can't be sure how much clear you have to work with. There's not really a magic number to shoot for in terms of "how much clear should you have" when taking measurements with a PTG; it's more a matter of looking for clues as you read a panel. What I was looking for in this case was to find the lowest reading, and by comparing that number to the highest reading it gave me some idea how much material I had to work with on average (as the thickness readings I posted indicate, this panel was highly inconsistent).



From there, how much material you feel comfortable removing in any given spot is in a lot of ways directly tied to your level of intestinal fortitude. :nervous: Spend as little time as you can sanding with coarse grits; the fine grits are much safer since they remove quite a bit less material per pass.
 
Knox Details said:
Nice work! that was some wicked orange peal! Were you not able to hit the tracers with some 2500-3000 then polish them out?



Thanks!



Unfortunately, the tracers I couldn't get out were in the primer so there was no fixing those.
 
Man what a save. From total crap to a very respectable repair in the time a careful detailer applies his knowledge and skills. Very nice Charlie!
 
Barry Theal said:
Hey Charlie,



Nice work man. Panel came out great. Did you block sand with 800 or DA sand with 800?



Thanks Barry! The 800 grit was with the DA.



MarcHarris said:
Man what a save. From total crap to a very respectable repair in the time a careful detailer applies his knowledge and skills. Very nice Charlie!



Thanks Marc!
 
What an atrocious re-paint but an impressive save you performed. Your first screenshot of the 800 grit sanding shows how unequal the paint application was with all the peaks and valleys. I would not have the balls (nor do I have the skills) to do what you did - awesome job again on your part!
 
Holy crap, those before photos look like the glass partitions in showers! LOL what orange peel!. Seriously great work Charlie, getting down and dirty with the 800 grit. Impressive stuff man, and great finishing shots.
 
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