Donald
Yes the steel work of early kits is oil blued, not plated as are the later
kits. On my aircraft I painted them with Hammarite (the flat finish not the
crackle) and this has lasted well.
The aluminium parts can be treated by anodising, alocrom (a DIY anodising
process), powder coating etc etc. This is a complex subject and I am
working on an article for the web site on this topic.
My experience is that, without any treatment, the parts you refer to are
sufficiently well protected that they show no signs of corrosion after ten
years.
Ian Rickard G-IANI XS Trigear, 300hours
Europa Club Mods Specialist
e-mail g-iani@ntlworld.com
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