Hi Guys, Any ideas on how to remove surface rust from some anodised aluminium? Seems the Ducati Corse dept QC wasn't the best with these parts - same on both parts I have. Thanks in advance.
You could try Fertan rust converter. But I think I'd find a local anodizing company and ask them to do with their next black run. chrome-distiller://6df19506-061b-4085-a9cf-c91d18145c61/?time=177747110&url=http%3A%2F%2Ffertan.co.uk%2Fhow_to_use_fertan.htm
From the colour, it appears that the part is steel as aluminium corrosion is normally white. “Rust” indicates a ferrous material.
Now I should've known that eh @RickyX ... schoolboy chemistry that a fridge magnet confirms. Google has come up with an interesting cleaning method - vinegar and tin foil... I'll report back.
For rust on steel then you need to strip back and apply a phosphate treatment before repainting, using a good primer. For aluminium alloy parts you would use a chromate for the same purpose, but not if the part were anodised. Phosphate treatments come in the form of either a liquid or a jelly and turn the corrosion black. There used to be loads of them in car accessory shops, but I have not been in the UK for years so don't know what trade names are anymore.
Anyone mentioned Fertan yet? https://rover.ebay.com/rover/0/0/0?mpre=https://www.ebay.co.uk/ulk/itm/272882040166
as per RickyX post - first thing I would do is give both a good (WD etc) dousing around pivot - if those pivot pins are corroding within housing and 'growing' then could start to seize plus could damage pegs when you dismantle. I would dismantle and clean with a rotary wire brush and then paint iiwm.
As above, use a good rust *converter* which you can just paint on and leave for a while. It will convert the rust and provide a sealing layer, then you can paint as normal. There's all sorts of brand names including Fertan, fuse, jenolite, loctite, etc but they all do the same thing. I bought a little pot from the local Ernest Doe (agricultural supplies) and use it for treating rust spots and so on. I did an entire frame from a mini-moto and repainted it silver and it came up a treat!
