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Anodised Trim

  • 25-01-2015 11:08am
    #1
    myshirt
    Registered Users, Registered Users 2 Posts: 5,245 ✭✭✭


    I hope I wasn't the only BMW owner who encountered this problem with the anodised trim on my car; rainbow like spots and etches, dried lime; just a disaster. To my eternal shame, it was a strong soap that caused it.

    Anyway, I went at it with some hand polish at the time and improved a bit. Here we are down the line and I'm not entirely happy with it.

    But I want to get it perfect now and then get some C4 on there. I'm not putting C4 on it until the prep is A1.

    What has everyone else used to resolve?
    (especially hard water Ireland!)



Comments

  • #2
    MetzgerMeister
    Registered Users, Registered Users 2 Posts: 19,885 ✭✭✭✭MetzgerMeister


    I had this same thing on my e92. I used a dremmel tool from Aldi with the cotton polishing pad and Autosol metal polish.

    In order to properly remove this staining, you need to create a small bit of heat. You can do this with the friction of the polishing pads that come in that small black box of bits for the tool.

    It's a small bit tedious as the pad is only half an inch wide and the polish goes everywhere but with a bit of patience and a wash afterwards, it's well worth it. Mine has stayed pristine since I did it.

    FYI I tried a D/A and a rotary polisher with different pads/cutting polish combinations and nothing worked.


  • #3
    myshirt
    Registered Users, Registered Users 2 Posts: 5,245 ✭✭✭myshirt


    Metz, if you couldn't sort it with a heavy combination on rotary, I'm goosed! Am I wasting my time with S3 on a orange hexlogic by DA so?

    What pad/polish combos do you use generally on BMW's out of interest? Menzerna?


  • #4
    MetzgerMeister
    Registered Users, Registered Users 2 Posts: 19,885 ✭✭✭✭MetzgerMeister


    Yeah, Menzerna FG400 or FG500 with Hexlogic orange pad and Chemical guys V36 followed by V38 and Hexlogic black pad for finishing.

    The problem is that the trim is metal, not paint and the normal polishing pads are just too big and have no effect. I even tried the D/A along with a rayon pad which is normally used for getting scratches out of glass and it made no difference.

    IMO the secret is in the heat generated by the dremmel tool as it spins very fast. A D/A and rotary are too big and cover too much area to generate this heat on such a small piece of trim.


  • #5
    myshirt
    Registered Users, Registered Users 2 Posts: 5,245 ✭✭✭myshirt


    Work at a quick speed? Slow speed? Any advice on method.


  • #6
    MetzgerMeister
    Registered Users, Registered Users 2 Posts: 19,885 ✭✭✭✭MetzgerMeister


    If you're talking about a dremmel, a quick speed is needed so you're not at the job all day :pac:

    I smeared all the trim with Autosol metal polish and then started polishing. You need to make sure to stop the dremmel from jumping and damaging the trim or your paintwork. Sadly, this happened to me but it's not very noticeable.


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