Hantsflyer27 From United Kingdom, joined Oct 2005, 65 posts, RR: 0 Posted (8 years 2 months 1 week 4 days 7 hours ago) and read 2815 times:
Can anyone answer a question for me??? What are AA airliners finished with??? Other than the strips and the logo, it just looks like polished metal. If this is the case, what stops corrosion? Is there actually a chrome effect paint they use? I thought and unfinished aircrafts body was green..once the protective painted had been applied to body.
Your thoughts on this would be appreciated. Many thanks.
MrChips From Canada, joined Mar 2005, 925 posts, RR: 0
Reply 3, posted (8 years 2 months 1 week 4 days 1 hour ago) and read 2731 times:
Quoting Starlionblue (Reply 2): The green paint you see on unfinished aircraft protects the metal. As far as I know it's stripped before the final paint is applied.
The green coating is actually a plastic-like coating that comes off rather like rubber cement, if I recall correctly. Also, it is only found on Boeing aircraft, since they use clad aluminum. Airbus uses anodized aluminum for most their aircraft, so they roll out of the factory with a coat of yellow chromate primer on them.
Incidentally, it is not possible to get a bare metal finish on any Airbus model after the A320, as the anodized aluminum is not supposed to be polished.
474218 From United States of America, joined Oct 2005, 6340 posts, RR: 9
Reply 5, posted (8 years 2 months 1 week 3 days 21 hours ago) and read 2674 times:
Boeing uses Alclad aluminum for the fuselage skins. Alcald is a thin layer of pure aluminum applied the aluminum alloy to provide corrosion protection. Pure aluminum dose not corrode while alloyed aluminum does. AA does nothing more than polish their fuselage skins to a high gloss. A chemical treatment called Alodine 1000 can also be applied to assist with the corrosion protection, as it is possible to polish through the Alclad coating and exposing the underlying alloy.
Hantsflyer27 From United Kingdom, joined Oct 2005, 65 posts, RR: 0
Reply 16, posted (8 years 2 months 1 week 2 days 10 hours ago) and read 2451 times:
Great responses, thankyou all.
I guess having your fleet finished in a polished aluminium could benefit in two ways. Firstly, are there any weight savings not using paint??? I'm guessing that coating a large jet like a 767 or 777 could use many KG of paint. Does anyone know more on this? And secondly, i guess it would be easier to inspect the body of an aircraft for stress fractures etcs....is this a factor? Any thoughts on that would be great.
I would also think a clean and re-polish would be substantially cheaper to do than a repaint.
Avioniker From United States of America, joined Dec 2001, 1109 posts, RR: 11
Reply 17, posted (8 years 2 months 1 week 7 hours ago) and read 2348 times:
Quoting HAWK21M (Reply 15): What Polish type.
Also what would the Paint Penalty saved on say a B747.
In 1992 the -200 I was involved with came out 3125 pounds heavier after paint. (DC-10's I used to work had a 2200 pound paint job so I wonder at the accuracy of the 747 weight, but that's what we got on the final weigh.)
One may educate the ignorance from the unknowing but stupid is forever. Boswell; ca: 1533