Polishing bumpers how to?

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  • agent
    Vice Grand Pubaa
    • Mar 2010
    • 7960

    #16
    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 build thread.
    Originally posted by kronus
    would be in depending on tip slant and tube size

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    • Keith M
      R3VLimited
      • Nov 2006
      • 2338

      #17
      Originally posted by camip
      Broke and just got out of high school but hell no I don't want to sand.
      If you don't like sanding, do not attempt this. I've heard it takes 80 grit to remove the anodized finish and you will have to sand with progressively finer paper, removing all sanding marks before you can polish. It's a very time consuming project and if you don't take the time to do it correctly the results will be less than satisfactory.

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      • JasonC
        Site Manager
        • Aug 2006
        • 14451

        #18
        Paging Forcedfirebird to this thread!!!!!!!!!



        1992 BMW 325iC
        1978 Chevrolet Monte Carlo
        1965 Chevrolet Corvair Monza 140hp

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        • gp.plus
          E30 Addict
          • Mar 2010
          • 416

          #19
          Oven cleaner works well to remove anodizing in most cases, you may have to play with the times a little, could take 5 min could take 2 hours. I have had good luck with easy off in the yellow can on some bike parts in the past. Don't panic if the aluminum starts turning a dark color, this wipes right off with CLR.

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          • camip
            E30 Fanatic
            • Nov 2011
            • 1253

            #20
            I think I'm gonna try some of the oven cleaner here soon and report with pictures.

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            • E30_Pare
              R3V OG
              • Oct 2008
              • 7801

              #21
              That may work on light anodizing, but don't underestimate how thick it is on DB's. Could probably measure it with a ruler. LOL

              NEW ERA AUTO GLASS - SFV SOCAL - 818 974-3673
              DREWLIENTE

              1$ PShops PM me

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              • camip
                E30 Fanatic
                • Nov 2011
                • 1253

                #22
                Well fuck it then. I ain't polishing nothing.

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                • Holland
                  R3V OG
                  • Nov 2008
                  • 7176

                  #23
                  Strip, sand, polish, clear, profit.
                  1985 M10b18. 70maybewhpoffury. Over engineered S50b30 murica BBQ swap in progress.

                  Originally posted by DEV0 E30
                  You'd chugg this butt. I know you would. Ain't gotta' lie to kick it brostantinople.

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                  • V8E30
                    Member
                    • Jun 2012
                    • 75

                    #24
                    going at it this weekend ill let you guys know if the oven cleaner works

                    and how long i let it sit

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                    • jw 325ic
                      E30 Fanatic
                      • Sep 2006
                      • 1360

                      #25
                      Interesting. I tried several metal polishes and like someone above said, it only did so much. Looked good from a viewers distance but up close it still wasnt perfect. I ended up painting them...sometimes i feel like finding another set of 88 bumpers and getting the chromed...hmm. Waiting for some pics :)

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                      • V8E30
                        Member
                        • Jun 2012
                        • 75

                        #26
                        how to is up and the afters as well hope you guys enjoy

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                        • camip
                          E30 Fanatic
                          • Nov 2011
                          • 1253

                          #27
                          Where at?^

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                          • V8E30
                            Member
                            • Jun 2012
                            • 75

                            #28
                            first post page 1

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                            • slaterd
                              E30 Mastermind
                              • Jul 2011
                              • 1731

                              #29
                              Oh my gawd mount that shit! Get picks with close ups!
                              Originally posted by Wh33lhop
                              This is r3v. Check your vaginal sand at the door.

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                              • gp.plus
                                E30 Addict
                                • Mar 2010
                                • 416

                                #30
                                V8e30.. Looks great man! I was afraid you would run into that problem with the oven cleaner, like pare said it is very thick on those bumpers, i have only ever used it (succesfully) on bicycle parts.
                                If you use more varied grits of sand paper between 400 and 2000, youll get even better results. It is very hard to get out the 400 scratches with 2000, in the least use 400, 800, 1500, 2000. Always be sure to clean your bucket and start with fresh water when changing grit..
                                Looking forward to pics on the car,

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