Hi Carl,
I do the alodining and epoxy painting on all aluminium bits and with
particular fanaticism where aluminium is bonded into wings and flaps.
Worrysome that the treatment is possibly insufficient.
I was just wondering if I could reasonably make an exception for some
parts like the CS0x (and maybe OR1, LG08, LG02) that to my untrained eye
seem to not need it.
Regards,
Jan
Carl Pattinson wrote:
> <carl@flyers.freeserve.co.uk>
>
> Corrosion protection is I would say essentail with the alloy
> components. Alodine and paint is the home option - alternately anodising.
>
> You will find that the flap points bonded into the wings will start to
> corrode at the bond line leading to possible cracks later on.
> Replacing these on a finished Europa is a job I would rather not
> contemplate.
>
> The paint we used (and we primed with Alodine) is starting to chip and
> there is evidence of corrosion (aircraft has been flying for 5 years.
> These are treated routinely with waxoyl to keep out the moisture (not
> pretty but effective) and then periodically cleaned and painted.
> Alternatively ACF50 corrosion treatment.
>
> The airflow in these areas will soon strip away any chipped paint
> exposing the alloy underneath - it doesent take long for corrosion to
> set in.
>
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