Repaint

R

rambo

New Member
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So ive painted my cars roof because the clearoat was peeling off. It was a MISSION. Took 7 hours to sand back to primer with 400 grit paper and made a massive mess of my car and the ground. Then I gave it the run over with 600 grit paper and wiped down with plenty of wax and grease remover for paint. Bought 2 spray cans of base and 2 cans of clearcoat(seemed to be enough) for over $100. Put four coats of base on and then sanded with 2000 grit paper (was looking quite good at this point). Then came the clearcoat. This was a nightmare as it has turned all my lovely work into a very shiny but almost white surface. This is as far as I've got so far (letting it cure overnight) and will be sanding with 2000 grit paper and ploishing tomorow (hoping like hell it makes the clear coat mint). If it turns out fine I will be very happy and it will have saved me 300 dollars.

This is what it looked like before.
 

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Only just applied clear coat. I will put more photos up after ive cleaned it up tomorow. There is blue crap all over the car from sanding.
 
buddy why are you sanding the paint between the base coat and clear coat?after the base is sprayed,let it flash off and then clear coat right away.
you sand with 2000 grit after the clear coat.
i'd say you'll have to rub back the clear coat with 800 grit and spray the base again,probably 2 coats to get the roof one colour and then spray the clear coat afterwards.id do 4 coats of clear coat.
 
I just wanted to get all the imperfections out of it. There like 10 coats of clear on it, I was spraying it for a good 30 mins. At the end it was looking mint when it was wet.
 
kinda off topic, is the reason you're meant to spray clear rather quickly after base so that they shrink at the same rate and it doesn't peel?(assuming acrylic)
 
if that pic was taken after your clear coats it wont look any different after its cured.
 
knk said:
kinda off topic, is the reason you're meant to spray clear rather quickly after base so that they shrink at the same rate and it doesn't peel?(assuming acrylic)
Click to expand...

im not sure about that but i does make sense.the reason you dont sand between base coat and clear coat is because the base coat is just a colour coat.the clear is what gives it the gloss and protection from the weather.if you sand the base coat before the clear you will get scratch marks and un even colour.

buddy since you just put 10 layers of clear on id just try sand the paint with 1200 or 2000 grit and buff it.see what happens then.
 
I am guessing it was too wet between coats...

Too wet, when applying next coats, is also bad.
 
Went into garage this morining to check on paint and was very suprised with result. Looked fairly good! I gave it two sands with 2000 grit paper cleaning after each time then gave it a serious cut with rubbing compound before putting the final coat of polish. Paint now look very, very close to factory cept for a few imperfections. Wasnt able to get pics up today but ill try tomorow.
 
me too, also I notice you didn't prime it beforehand? Isn't this usually necessary when going from 2k to anything else. Or is there an exception when you take it all back to 2k primer?

sorry about the questions, I'm intrigued :)
 
heres the photos. Have to wipe down every time I park it outside atm, seems to be accumulating water alot.
P1000819.jpg

P1000818.jpg

P1000817.jpg
 
looks alright, though i can see sanding marks or yur polishing marks in the roof on the close photo (2nd)
 
Did you cut or buff it already?! You should wait for a couple of weeks before you cut new paint.. unless you have an oven/have it baked..

Solvents make it soft and take time to bake out / release.

That first image of the respray look like a lot of peel, but it's a bad pic.

What are those scrape marks in the second?

If you are yet to cut it, then the third pic (where it looks a bit dull) may get a lot better... but leave it be for about 2 weeks and let it sit in the sun as much as possible, so the paint achieves it's maximum hardness first.
 
Looks better then what I can do lol. I would of thought 400 or even 600 be to harsh.

I used 800 on mine, mind you I havent put many coats on but I can see sand marks in some spots.
 
It has peel quite bad thats why I think water is sitting on it, pic 2 is cause I just wiped it with a cloth to get the water off, there no marks there when its clean. Will probly sand again with 800 grit in the next feew weeks to get rid of that peel. I cut it the morning after I painted it so its probly gonna flake off like a mofo right?
 
800!? why, do you want to start again!?

I would say successive cuts with 1500 at most... but, hey...I can't really tell from here.
 
maybe not, just wait and see.

Use more than 800grit i would go more of 1500-2000
 
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