alloy corrosion !

[born to be mild]

Hi all
can anybody advise ? Im about to have the exhaust hangers and the clutch cover etc powder coated on my Speedy, Ive stripped the paint off the hangers using Nitromors, the problem that I have is that theres a lot of white, powdery aluminium corrosion under the old flakey paint, short of shot or bead blasting, does anyone know of anything that I can remove this corrosion with? the paint stripper seems to remove the least worst of it but the deep stuff can still be seen.
Any tips anyone ?

[bjbiker]

i have the same problem in the past you will need to get them blasted to stand a chance because the corrosion will be deep in the alloy and if you get them powder coated the heating proseces will
draw more to the surface.
I had to get my exhaust hangers stripped and painted twice to get a saturfactory finish .

[MotT3]

If your paying to have them coated by a proper coaters they will blast the items to an acceptable standard before coating them anyway....?

[born to be mild]

Youd think so Mot, but lets take the highly hypothetical situation of someone who works where there is a powder coating line but no shotblast facilities,,,,,,

[Flying Custard]

The stripper will only remove the loose surface white dust. Could seek the advice/services of someone who media blasts engine/bike/scooter parts. Just blasting might be OK on it's own.
But mine were horrible, salt sea air ate them. After blasting I had to fettle them to level the 'eaten' bits with the rest (but am painting mine in 2k, powder should hide a few 'sins')..

Other options, do it by hand with sandpaper, needle files, whatever it takes.
Or one of the acid cleaners like Belgom Alu should remove the fur, though I never got on too well with that stuff.

[born to be mild]

Thanks, bjbiker, Mot and Custard, seems my like lazey,cheapskate ways are misguided after all, shame really cos Im an idle bugger at heart, ah well.