Polishing bumpers how to?

[agent]

Both. Yeah, I didn't spend as much time on the bumpers as I could have. I'm not a fan of the chromed look that results when all the anodization is removed from the bumper and it gets mirror polished, so I used the same stuff as I used on the window trim pieces, and it's definitely an improvement though it's tough to see in the pics. They could stand to have a few more hours spent on them.

[Mike30e]

You talking about Klaus? Yes, I read that, but could not really tell about the bumper. Looks good when you reinstalled it, but was it really oxidized or just really dirty? I couldn't tell in the pictures of it in the first posts. I have have found little info on results of their anodized bumper stripping kit... I've read where some say their product for the bumper surrounds works, some say it does not. Your results look pretty good...

[agent]

Has anybody actually tried this product from Classic Trim Coat? Does it work at all? Have not been able to find much info on real world results for this. Looks like a great product - if it works...
http://classictrimcoat.com/bumper-stripping-kit.html

If you sand the anodization off the bumper, it will require exponentially more cleaning and polishing once you do. The best solution I've found is the deoxidizer product from Classic Trimcoat. There should be some pics in my [first] build thread.

[Mike30e]

Has anybody actually tried this product from Classic Trim Coat? Does it work at all? Have not been able to find much info on real world results for this. Looks like a great product - if it works...

http://classictrimcoat.com/bumper-stripping-kit.html

[Mad Chemist]

End result

Just a sample of mine after a polish.

[Voyd]

How much did the sodium hydroxide cost you?

It can be had for around 10 bucks on ebay. For stripping chrome check out http://www.caswellplating.com/ they have many products and a large knowledge-base there.

[E30_Pare]

Would that work on chrome? Looking to strip my euro bumpers/weaves. I read somewhere that bleach could strip chrome off plastic, but unsure about metals

[1craze30]

How much did the sodium hydroxide cost you?

[camip]

Finally! Someone has found a way!

[Voyd]

I wish I saw this post before you took the grinder to the DB"S. I had a set of Forgeline wheels that were anodized black when I bought them. My goal was to polish the forged aluminium to a deep shine. To make matters worse the anodized coating was a couple of mils thick with a poly clearcoat as well.
I stripped the clear with this:


I then bought some of this:


from Casewell Plating. It is Sodium Hydroxide (Caustic Soda Lye) and comes in a powder form. I then added it to some water and dipped the wheels in a bath of it. I can't recall the mixing ratios and time as this was two years ago. When I pulled the rims out of the bath I had pure virgin aluminium.

At this point I started to polish each wheel. I used a hand drill, Sissel buff's and aluminum grease-less compounds and Tripoli polish to get a mirror shine. But sand paper will work as well. My main point is that you need to use the Sodium Hydroxide to get the anodized coating off. I tried to sand it and it was never coming off.

[1craze30]

http://mysite.verizon.net/

vze7aq8e/id16.html

Great site, on how to refinish bumpers.

[E30_Pare]

Looks clean atleast

[slaterd]

I tried doing this a while ago with a front marker delete. But all I managed to do was polish the coating on the DB. I need a mirror finish on my car!

[camip]

I will when I get off work. I've learned through trial and error no chemicals take off the clear and grinders and belt sanders just add work and flat spots.

[slaterd]

Come on guys! Put up some pictures