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Old 04-11-2008, 06:38 PM   #70 (permalink)
tedh1951
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Re: The $50 Trumpet Experiment [Image Heavy]

Quote:
Originally Posted by Phil Kersh View Post
Okay, I think I'm getting a better idea. For those of you who are experienced "Scotchbrite" users, which color or coarseness do you prefer? Do you used the drill method or would you rather age the finish by hand?
Phil, I've had another think about the grades and I think I have mislead you. The grades go Blue, green, red, white in descending order of coarseness. I have used the red grade extensively on aluminium (3" squares with the bolt) - blue seems to be used to scour bathroom floors, and green is often used for household dishwashing (that's for those of you that don't use a dishwashing machine), red works well when "grinding" corrosion out of aluminium aircraft skins - so I would begin with the white grade if you can get it - it will need less 'aging' than the rest, and it is a finer weave than the others. This is the grade I use for washing up (oops, now the secret is out).
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