Can't figure this out... (dull paint)

K

kreativ

New member
The roof of my car and a part of the trunk has this dull feeling to it. After claying, it still felt dull on those areas. I figured it might be oxidation then. I used 3M IHG and then Klasse AIOx2, both of which are supposed to remove oxidation, but the surface still feels dull in those areas.



What do I have to do to get that glassy smooth surface?
 
Can you post pics?



What kind of car and what year? Original paint or a repaint? Clear coat or non clear coat? 'Rough feeling' is a little vague to really zero in on your problem.
 
It's a '91 Lexus LS400, Pearl White, clear-coated, original paint, mostly in the garage. The rest of the car feels glassy smooth...just the roof and part of the trunk top have the non-glassy feeling. I clayed those areas multiple times to no avail.



I'll see if I can borrow a digicam. It's hard to tell visually though...
 
Without being able to see the car, I would guess the clear coat is starting to go-maybe some checking in the paint (real fine cracks that would hard to see on pearl).
 
The AIO will remove the IHG as far as that goes. I'd reverse the order of those two if you wanted to stick to that routine. You should see if you can post a pic or two of the effected area.
 
Are the rough spots right below your garage door opener?



It might be rust coming from the chain and eating away your clear, so you might want to fix that before you fix the paint.





my $0.02

:bounce
 
Could also be the clearcoat has failed and the color coat is also fading.



IHG isn't aggressive enough to do anything. AIO is far too wimpy. Even SMR applied by hand is too mild. Lexus is notorious for hard paint. You need to use something with some real bite in it.



Meguiar's DACP

Meguiar's Fine Cut Cleaner

3M PI2 machine polish

one of 3M's compounds
 
I'd consider the possibility that it's overspray. I'm not clear to me as to whether you're the original owner but, nonetheless, this could've have happened with a new car before you took delivery or because of an "accident" occurring during an all-day service visit. It may not even indicate that your car was the one needing the respray - might've been parked next to that vehicle. After this amount of time I would imagine only the most aggressive of clays would touch this. Wetordry/power buffing might be needed - don't try this on your own!



There are devices - very expensive devices - that can measure paint thickness. Perhaps you could find a body shop possessing one that would give this area a quick once over.



I offer the suggestion because I just don't think those presented so far are all that likely.
 
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