crushers
post ho
someone posted up a link to a company in BC that is making some aluminum tray backs.
can you please repost this for me?
TIA
can you please repost this for me?
TIA
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someone posted up a link to a company in BC that is making some aluminum tray backs.
can you please repost this for me?
TIA
Louis, my experience with aluminum is the closer it is to pure aluminum the more resistant it is to corrsion. Like aluminum boats don't always corrode in sea water. But aircraft aluminum skins(2024- copper based aluminum alloy) is very prone to corrosion, but very strong and flexible. To fix the corrosion tendencies they make the alum in a sandwich or material. Using 5% of pure alum on the outsides to prevent corrosion. But if you get scratches or such it will corrode, as the alloy is then open to oxidation.
They call the pure alum outside "clading".
So if the alum was closer to marine grade it would be fine. But I would clean it lots. Any sign of corrosion I would blast it with glassbead(not silcon or it corrodes more) and then chemical treat it. Other choice to would be to paint the tray back and not leave natural. If your bent on a shiny outside then I would treat with Acid etch to prepare the alum and then use a clear version of alodine(bought at paint shops). Then spray clearcoat on it.
If you need more info on painting alum just send me an email. We do it all the time on planes. And I used to work on mostly seaplanes. Maybe you flew seaplanes at some time..... ?
So if the alum was closer to marine grade it would be fine. But I would clean it lots. Any sign of corrosion I would blast it with glassbead(not silcon or it corrodes more) and then chemical treat it. Other choice to would be to paint the tray back and not leave natural. If your bent on a shiny outside then I would treat with Acid etch to prepare the alum and then use a clear version of alodine(bought at paint shops). Then spray clearcoat on it.
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