PLASTIC COVERING ON 2024T3 SHEET
PLASTIC COVERING ON 2024T3 SHEET
(OP)
Can the plastic coating sheet alloy be left on the inside of a leading edge?
My thoughts are that it is not correct to destroy the aluminuium coating by scuffing it before treating it with alodine.
Alby
My thoughts are that it is not correct to destroy the aluminuium coating by scuffing it before treating it with alodine.
Alby





RE: PLASTIC COVERING ON 2024T3 SHEET
RE: PLASTIC COVERING ON 2024T3 SHEET
i think we remove the plastic film early in part manufacture, and alodine as required, and prime, and top coat as required. i'd be uncomfortable leaving the film on the component, mostly 'cause i think this is un-common practise (and has a bunch of unknowns).
RE: PLASTIC COVERING ON 2024T3 SHEET
RE: PLASTIC COVERING ON 2024T3 SHEET
The plastic coating on aluminum sheet product (Blue Dragon or similar.) is there to protect the material during fabrication and material handling. It should be left on as long as possible to protect the sheets from scratching or over spray. It should be removed before installation.
It should not be exposed to sunlight, this will bond the film to the sheet making it just about impossible to remove. The material eventually goes brittle with age falling off in small pieces like old paint.
I would not leave it on a sheet in any place where its falling off would be a problem.
B.E.
RE: PLASTIC COVERING ON 2024T3 SHEET
RE: PLASTIC COVERING ON 2024T3 SHEET
The film prevents marring the surface and corrosion during handling, storage and forming. Then remove it, and degrease, deox and Alodine the aluminum.