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Maintenance question for Giotto

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  • #16
    Re: Maintenance question for Giotto

    Originally posted by 64686B6E69706269070 link=1323169973/14#14 date=1325575753
    I have simliar problem here too.
    The 10 yrs old Giotto I just got have a lot of scratch on it.
    I start to try to use the buffing wheel with the red compound (did not know whats that) from bunnings to attache to my driller.

    However, did not see too much improving.
    Got another bottle of brosso, elbow grease them. The same, not too much different.
    Anyone suggest other buff work or I need to take the panel to the professional polish workshop now...
    Okay, The problem might be that youre working with scratches too deep to be polished out using Jewelers Rouge (which is what the red stuff is, Iron Oxide Paste, if you want to be technical) on a buffing wheel

    Might need to go to 000 steel wool or 1500+ grit-paper (which you should be able to get at any good automotive store, if bunnings doesnt have it) to smooth over the scratches and then use the buffing wheel.

    if the paper doesnt cut deep enough to smooth over scratches, you may need to go with a courser grade

    Brasso is near useless for getting scratches out of hard SS, the particles are too soft to really cut away the edges of the scratch

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    • #17
      Re: Maintenance question for Giotto

      Be careful,

      Earlier ones were definitely chrome over SS as I saw two panels with defective plating which peeled (and were replaced). Id think theyre still chromed to provide the mirror finish.

      Id be placing any polishing job in the hands of a professional.

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      • #18
        Re: Maintenance question for Giotto

        Thanks for Laughing@fate and Talk_coffee

        I may just get a cheap sand paper (1500+ grit) first.
        If I failed, I will send it to a professional one.

        The problem is I try to yellow page and google it, no "metal polish" shop in Townsville.
        Any other keyword I should try?
        As a non-native English speaker, sometimes I have problem to find the correct term in some certain uncommon stuff.

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        • #19
          Re: Maintenance question for Giotto

          Take it somewhere that does polishing/plating before you start sanding, especially if its chromed.

          Try searching for metal platers, chroming places, or even car/motorbike restoration shops, they should at least be able to tell you who deals with chrome restoration or metal polishing.

          Cheers

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          • #20
            Re: Maintenance question for Giotto

            Thanks Artman,
            I bought the sand paper (1500), but I did not use that since I read your post.
            I start to skip through the yellow page to see if there any keyword list as you suggestion.

            I will ring them to get some idea about how much it will cost me.
            But thanks again before I ruin my panel.

            Cheers

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            • #21
              Re: Maintenance question for Giotto

              Hi gbatterley and Colin,
              If youre still looking for a solution you could try "Tripoli Powder". Its used to cut and polish stainless, chrome, gemstones, wood. Basically loads of things. It is used in different grades for different jobs. It is probably the abrasive in the red jewellers compound already mentioned.

              The wood "grade" works with chrome, stainless, copper and brass. It comes in powder form. Use it on a damp cloth with some elbow grease.  Its available online from various woodcraft and metalworking toolshops (jet tool (Colin theyre also in Tville too) carbatec, carrols woodcraft) or the australian polish manufacturer (ubeaut/u-beaut). Colin - you could ask the local woodworking club  - somewhere near Pimlico I think. Either way, these specialty suppliers are often cheaper for consumables than the chains like Bunnings.

              As other posters have stated. If you start too coarse you will make things worse.

              As a hobby restorer, my technique for *restoring* finishes in metal and wood, is to start with the smallest area possible with a middle grade working by hand and see if it looks improved. If the scratches are still too deep Ill go coarser still, again by hand. Once I see blemishes start to "blend in" with the rest  then I start going to increasingly finer grades. At the finest grades after I know Im helping and not damaging, I go motorised.  Having said that every job it different in some way esp when the scratch comes with a dent or another shape change.

              In the last stage of polishing, I always ditching my wool buffing wheels for a Swansdown cloth wheel - about $25 to $35 usually. Compared to lambswool they are faster,  softer (once you start using them with a polish), dont overheat (unless you really force them) and less prone to clogging as the polish heats up and starts to cook.




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              • #22
                Re: Maintenance question for Giotto

                Thanks dabbler,
                I will look into that when I have time to do the polish.
                Now I got some trouble with machine itself...>_<

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