What is this - Hummer Forums - Enthusiast Forum for Hummer Owners

Detailing Discuss detailing your ride within.

What is this

  #1  
Old 06-24-2014, 09:53 PM
Senior Member
Thread Starter
Join Date: Oct 2010
Posts: 209
Default What is this

This showed up on my wheel and my SS brush guard after this winter (see picture). Anyone know what it is? Should I try CLR on it or will that hurt the SS?
 
Attached Thumbnails What is this-wheel.jpg   What is this-brush.jpg  
  #2  
Old 06-24-2014, 10:13 PM
Junior Member
Join Date: Dec 2012
Posts: 18
Default

it's hard to see if your rims are plated or not, but it looks like corrosion on your aluminum base metal under your plating. regardless, it's aluminum corrosion of some sort.
 
  #3  
Old 06-24-2014, 10:17 PM
Senior Member
Thread Starter
Join Date: Oct 2010
Posts: 209
Default

The BG is SS, not aluminum...
 
  #4  
Old 06-26-2014, 05:40 AM
ak47dennis's Avatar
Senior Member
Join Date: Mar 2011
Posts: 314
Default

That's corrosion. (aka rust for metals that don't)
 
  #5  
Old 06-26-2014, 12:24 PM
Doc Olds's Avatar
Super Moderator
Join Date: Jul 2007
Location: Boat Town USA MI
Posts: 8,525
Default

Two words, well sort of: Nevr-Dull

SS is stain and corrosion resistant, not impervious. SS grades are based upon chromium and nickle content, automotive grade (300 or 301) still is subject to corrosion, it just oxidizes in a different fashion than carbon steel. Once the surface does begin to become covered in an oxidation state, it causes the layer beneath to have oxygen deprivation. Those SS grades still have problems when exposed to certain chlorides like those in ROAD SALT. So add salinity (road salt) to surface corrosion, you can get penetration and pitting.

In other words, polish that crap off now.
 
  #6  
Old 06-26-2014, 12:26 PM
Doc Olds's Avatar
Super Moderator
Join Date: Jul 2007
Location: Boat Town USA MI
Posts: 8,525
Default

As to your rims, the chrome plating surface has become oxidized allowing aluminum to come through to the finished surface. You might be able to polish out some of that, but it will come back quicker the next time.
 
  #7  
Old 06-26-2014, 01:04 PM
Senior Member
Join Date: Sep 2010
Location: Clearfield Utaw
Posts: 726
Default

Yep - looks like the typical road salt and hard water (think parking near sprinklers) build-up and corrosion we get around here. Personally I'd try something like CLR first to see if any of it can be cleaned off, but I agree with the others about corrosion underneath.
 
  #8  
Old 01-13-2015, 06:30 PM
Senior Member
Join Date: Aug 2010
Posts: 560
Default

Originally Posted by skeptic View Post
Yep - looks like the typical road salt and hard water (think parking near sprinklers) build-up and corrosion we get around here. Personally I'd try something like CLR first to see if any of it can be cleaned off, but I agree with the others about corrosion underneath.
what about powder coating your riims black? that is what I did when I started getting that corrosion. best thing i ever did. Looks awesome.
 

Thread Tools
Search this Thread
Advertising
Featured Sponsors

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.