Technical & Reference Section > Tech and Restoration

ripper clean up bare alloy any tips ?

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Rodgy1970:
Check this out  :daumenhoch:

http://astro.neutral.org/nitric_acid_chemical.shtml

Something like this would do the trick but you have to be careful with stuff like this,leave it on too long and it will pit the alloy.

http://hughcrane.co.uk/chemical/workshop-industrial/hugh-crane-aluminium-cleaner.html

If you don't want it polished avoid using glass paper, rubbing compound, autoglym, brasso even peak as they all contain abrasives and a scotchbrite pad is abrasive too.

If it does end up a bit brighter when you've finished it will soon dull down.

SteveG:
Some interesting info there, Caustic Soda and Nitric acid look good.

I guess it might be worthwhile getting an even finish on whatever it is you are doing first though, is that right ?

Rodgy1970:

--- Quote from: SteveG on June 03, 2012, 12:13 AM ---Some interesting info there, Caustic Soda and Nitric acid look good.

I guess it might be worthwhile getting an even finish on whatever it is you are doing first though, is that right ?

--- End quote ---

Don't really understand what you mean but if you mean using glass paper or a scotch brite pad on it first then I'd say no.

The finish should be even if you use the alluminium cleaner, it should remove the tarnish and oxidisation and other crap off the top without rubbing off a layer of metal, although it won't remove scratches but they won't be half as noticeable after cleaning anyway.

I think this is the same stuff sold by m and p.

http://www.mandp.co.uk/productinfo/503966/Bike-Care/Metal-Cleaner-and-Polishes/Ali-Brite

I've used this sort of stuff on motorbikes and I reckon it should do the trick, you spray it on, agitate it with a wheel brush or toothbrush to get into the tight spots then hose it off, not letting it stay on for more than about 5 mins, if your not happy do it again.

theRuler:

--- Quote from: rodriguez on June 03, 2012, 12:50 AM ---Don't really understand what you mean but if you mean using glass paper or a scotch brite pad on it first then I'd say no.

--- End quote ---

I had to use scotchbrite on my painted ripper.  The paint shifted ok with nitromors, but the etch primer underneath was hard to remove.

Mind you I was going for the shiny look.

Didn't use any glass paper though!

Moza:
Thanks guys its already bare it just needs a good clean up but I dont want it shiney, Close to factory finish will do.

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