Suggestions for the roof of this BMW

Tanner Krabill

Tanner Krabill

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Hi everyone. I just wanted to get some suggestions on getting this black roof back to a good shine.

As you can tell it's pretty faded.
Thanks !
alq135.jpg
 
You probably could earn great results by useing a one step product like menzerna po203 and white pad though if its stubborn then a microfiber cutting pad and a compound and polish like mezerna fg400 and sf4500 may save the day but as always do a test spot to confirm a working method
 
As JB suggested MF cutting pad and M105 is what I'd start with... you may be able to get away with an orange pad and M101. Normally I'd say start with an orange pad with M205, but that looks pretty sketchy.
 
Thanks guys. I have some m105 so I'll pick up a few pads tomorrow.

I'll post pictures of the final result on Friday.
 
As mentioned by others I would start fairly aggressive as well. What machine, compounds/polishes, and pads to you have?

Looking foward to seeing more of this jet black 3 series.
 
Measure the paint before you start.

If there's that much oxidation, there's a decent chance that it's clear coat failure underneath.

If I were you, I would just leave it alone.
 
The Critic said:
Measure the paint before you start.

If there's that much oxidation, there's a decent chance that it's clear coat failure underneath.

If I were you, I would just leave it alone.
Click to expand...

I'm no Pro, but this would have been my first suggestion as well...
 
The Critic said:
Measure the paint before you start.

If there's that much oxidation, there's a decent chance that it's clear coat failure underneath.

If I were you, I would just leave it alone.
Click to expand...

That looks like the beginnings of clear coat failure, not oxidization.

Only real repair for clear coat failure is a repaint, because the problem isn't ON the paint, it's IN the paint.
 
I have had two cars personally that have had clear coat failure and that is what the OP's car looks like to me.
 
CC failure or at least the start of it was my first impression too. As previously pointed out if you have a PTG i would take a bunch of samples, good areas vs. that roof. If you don't, maybe an auto parts store has a loaner. If it's thin i wouldn't touch it with anything other than a pure cleaner polish.
 
It's not oxidized. Maybe CC failure? The owner used to take it to one of those "100% hand wash" places & said he realized they were ruining his car & putting swirls all over it.

He mainly just wanted to see If I can get the roof better looking, if not he's going to have it repainted.

I don't have a paint thickness gauge. I've done a few mustangs that were severely faded & had pretty good results with compound & polishing. I think anything will look better than how it is though.
 
Whatever the case I would in detail explain to the owner that you don't promise any sort of results, sounds like they are fine with a repaint but that any improvement is welcome. Under promise and over deliver.
 
So here is the after picture. The owner of the car was pretty happy with the results.

1zx5u9g.jpg
 
I don't have a gauge either.... but taking a chance looked like the right decision. Looks amazing!
 
I washed, clayed, compounded, polished & then waxed it.

I'm still new to this type of stuff. I mainly do production detailing.. Washing, Claying and Waxing & interiors.
 
Looks good but like most of us said earlier in the post, get yourself a PTG. If I didn't have one and a car like that came in to me I would not have compounded it. That's just me, I don't feel comfortable with it if I don't know what I got to work with.

Sent from my SCH-I545 using AG Online
 
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