Finally, a different color BMW to work on. e90 335i - Alpine White - Paint Correction

zmcgovern45

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This car belongs to a local car forum member who did some mechanical work for me a little while back in exchange for a detail. This is the 4th 335i that has come to me from the forum, so they must be pretty popular. This car had the typical scratches and swirls of a daily driven vehicle and was in need of some serious paint correction to restore some shine to the beautiful bright white paint. The owner had just removed the clear bra from the front bumper and 1/3 of the hood, and thankfully the bumper was in very good shape (as you might hope from an area that has been covered for many years), the hood on the other hand was in very bad shape. Luckily, white is a rather forgiving paint color to be working with and it can allow you to be more aggressive than you can be with a darker paint color, while still finishing down well enough to not require an additional polishing step.

Process
-Wheels: CG Diablo Gel (4:1) w/ Wheel Woolies, Soft Wheel Sponge & Various Brushes
-Tires: Tuf Shine Tire Cleaner & Tuf Shine Tire Brush
-Bug & Tar Pre-Soak: CG Bug Bugger & Tar Remover (6:1)
-Pre-Soak: CG Citrus Wash (foam left to dwell for 5-7 minutes)
-Wash: CG Citrus Wash & Sheep Skin Wash Mitt
-Decontaminate: Iron X
-Dry: DI Waffle Weave Drying Towels
-Tape: 3M Blue Painters Tape
-Paint Thickness Readings Taken
-Polish: Menzerna PF2500 on Orange Light Cutting Pad via Rupes LHR21ES Sp. 5 (5.5" pads) & PC7424XP Sp. 5-6 (3" & 4" Pads)
-IPA Wipedown (~15% solution)
-Sealant: CG Black Light on Black Finishing Pad via PC7424XP Sp. 4
-Wax: CG Pete's 53 Black Pearl Signature Paste Wax via P21S Signature Wax Applicators
-Tire Dressing: Optimum Opti-Bond Tire Gel (3 coats due to tires soaking up the dressing)
-Exhaust Tips: CG Metal Wax (polish and protection) via MF Towel


Before

The car was pretty dirty when it showed up, but the defects were still easily visible. Swirls, scratches, water spots, bugs, dirt, etc.
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The wheels showed typical levels of dirt and brake dust build up.
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During

As always, I began by cleaning the wheels. CG Diablo Gel was left to dwell on the wheel for a minute or so in order to starts cutting through the brake dust and grime.
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After the wheel is clean, I move to the tire. Clean tires allow for a better look and longer lasting tire shine. These tires were quite dirty.
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After the wheels and tires were cleaned, the car was foamed and washed, it was then treated with Iron X to remove bonded Iron particles from the paint. Iron X is a very useful product that turns purple as it dissolves the iron. It is especially fun to work with on a white car so you can really see the color transformation as the product is working.
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Once the paint was clean and free of contamination, I was able to see the real condition of it. It had a lot of swirls and deeper scratches. Here you can see the texture in the paint due to the large amount of swirls.
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After a thorough inspection, I began with my test spot on the hood. Here is the spot prior to polishing.
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Cleaned up nicely!
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Fender prior to correction.
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After Correction.
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Trunk prior to correction.
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After Correction.
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Other fender prior to correction.
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After Correction.
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Door prior to correction.
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After correction.
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50/50 Shot comparing the front door (polished) to rear door (not yet polished).
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50/50 Shot showing the corrected section vs. uncorrected section on the rear passenger door. Nice improvement!
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Nicely Polished paint!
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Polishing exhaust tips - left has been cleaned, right has not.
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Exhaust tip before
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And after polishing & protection
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After

Once polishing was complete, the car was coated with a layer of sealant and then a layer of wax. It is difficult to show the gloss of a white vehicle in bright sunlight, so I took a couple of pictures inside the garage to show off the intense shine that the paint had!
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Car looked great, very bright and very white!
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Wheels and tires all cleaned up.
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Nice and glossy finish... not too bad for a white car!
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Glamour Shot.
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As always, Thanks for looking! Questions/Comments are very welcome!
 
I'm sure its not because of your work, but more of either color or paint quality.

However, why is it that you don't get the sharpness of the light reflection in the paint? I've seen your dark color posts before and it's "mirror-like". Is it just a color thing?

Thanks and great work!
 
Nice work! I always look forward to using Iron-X on white or light colored cars because of the color change.
 
What polisher did you use for those deeper fine scratches? I have those in my corolla, but can't seem to take them off with anything. I've been messing with different polishers but no result. Really not looking into wet sanding or paint touch up...
 
Great work.

I have to look into that iron-x stuff
^It is a bit pricey, but it is great to have. Saves a lot of time... I didn't even need to clay this car.

BMW has the best white. Nice job.
^Agreed, it was gorgeous!

I'm sure its not because of your work, but more of either color or paint quality.

However, why is it that you don't get the sharpness of the light reflection in the paint? I've seen your dark color posts before and it's "mirror-like". Is it just a color thing?

Thanks and great work!
^It is due to the camera settings... since I was essentially shooting in a completely dark room (since that is the best way to see defects on white paint), I was using a wide aperture. On top of this, I was taking rather detailed shots at a close distance to the paint. This creates a very shallow depth of field (ex: f/5.6, 60mm lens, 3 feet from car = DOF of only 0.16ft). Since the lights are not in fact on the paint, they are several feet away from the paint, I would need a much deeper depth of field in order to have the surface of the paint and then reflection of the lights in focus. You will notice that on the shots where I am farther away from the car (ie the before/after shots of the trunk) the lights are much sharper because of the increased DOF and different camera settings.... if you aren't into photography this might not make sense? Thanks!

Nice work! I always look forward to using Iron-X on white or light colored cars because of the color change.
^It is definitely fun to watch the car "bleed".

Very nice work. Car looks great.
^Thank you!

Nice job. The white really pops.
^Was blinding in the sun! I had to wait for the sun to pop behind the clouds for a few seconds to snap the pictures.

What polisher did you use for those deeper fine scratches? I have those in my corolla, but can't seem to take them off with anything. I've been messing with different polishers but no result. Really not looking into wet sanding or paint touch up...

I have an in-depth product list at the top of the OP. See below for copied info.

zmcgovern45 said:
-Polish: Menzerna PF2500 on Orange Light Cutting Pad via Rupes LHR21ES Sp. 5 (5.5" pads) & PC7424XP Sp. 5-6 (3" & 4" Pads)

If you look through the pics, you will see that many of the heavier scratches remain... I did not chase after them, as that is not the point of a one-step correction.
 
Beautiful work as always. The gloss and reflection coming off the white paint is truly amazing. Great results achieved here. Thanks for posting and sharing.
 
Amazing work and photography skills, Zach! I can't believe how much gloss you were able to capture on a white car. In addition, you took superb shots of the swirls and those 50/50 shots are fantastic!

Keep up the good work! I really wish I could take photography lessons from you.
 
Beautiful work as always. The gloss and reflection coming off the white paint is truly amazing. Great results achieved here. Thanks for posting and sharing.
^Thanks man! :dblthumb2:

Amazing work and photography skills, Zach! I can't believe how much gloss you were able to capture on a white car. In addition, you took superb shots of the swirls and those 50/50 shots are fantastic!

Keep up the good work! I really wish I could take photography lessons from you.
^Thanks Marc! Photography is just a lot of practice... trial and error until it becomes 2nd nature. I wouldn't enjoy detailing nearly as much if I couldn't use my photography skills to share my results with other people... that is really my favorite part. Let me know if you ever have any other photography questions, I'll try my best to help! (hopefully you've been messing around with your camera since the last time we PM'd)
 
Nicely done as usual. I'm always impressed with the turns-arounds you get on exhaust tips, by hand no less.

It's tough to show anything on a white or light silver car. I have found that having the car in full shade with the reflection in full sun and photographing at a shallow angle does the best to show off your work. Clearly you figured that out with your after pic in the garage.
 
Zach, I understand some of the photography stuff, way out of touch and experience with it since I took classes in college. I've seen a lot of your work (only your pictures load on my work computer :-) ), I didn't think to consider you would have been adjusting the photographs to show the blemishes.

Great work though, it looks amazing!
 
Nicely done as usual. I'm always impressed with the turns-arounds you get on exhaust tips, by hand no less.

It's tough to show anything on a white or light silver car. I have found that having the car in full shade with the reflection in full sun and photographing at a shallow angle does the best to show off your work. Clearly you figured that out with your after pic in the garage.
^I must get relatively clean exhaust tips to work with, that is my best guess?

Yup, lighting is the key to photography, and really showing off a white paint job can be tricky.

Zach, I understand some of the photography stuff, way out of touch and experience with it since I took classes in college. I've seen a lot of your work (only your pictures load on my work computer :-) ), I didn't think to consider you would have been adjusting the photographs to show the blemishes.

Great work though, it looks amazing!
^The camera is simply focused on the paint in order to show the defects (as it always is), however due to the very shallow depth of field, the reflection simply is not as sharp because it is falling out of focus. I could have remedied this by using slower shutter speeds and smaller apertures, however I didn't feel the need to mess with it. What's the point of an f/1.8 lens if you don't open it wide open from time to time :dblthumb2:

Thanks for the kind words!




Forgot to add this in the OP:
[ame=http://www.youtube.com/watch?v=mzWOFJH2ZEA&feature=c4-overview&list=UUYYkJ7ziLLPtmrrESuYUoPw]Paint Correction BMW 335i - Rupes LHR21ES - Menzerna PF2500 - YouTube[/video]
 
Great work. Alpine white is one of my favorite colors for Bmw. I have been thinking of painting my jet black E39 alpine white
 
Great work. Alpine white is one of my favorite colors for Bmw. I have been thinking of painting my jet black E39 alpine white

This was my first adventure with Alpine White, but it sure was nice looking. I recently did a white Audi S6, and this BMW looked leaps and bounds better. Not quite sure what it is about the paint, but it is a very nice white.
 
Great job on a nice Bimmer

Great to show off a deep shine on a white B
 
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