I have an aluminium trike which I built from a kit. Before I assembled
the tubes, I had them anodised bright red
.About 18 months on, one of the tubes has changed colour considerably.
It is now a dull pink and looks completely different to the other
tubes. I suspect that the tube may not have been sealed properly after
being dyed? Is there any way that the colour can be restored? Any form
of heat treatment is out because the trike is bonded, and anything
over 60 degrees or so will break down the glue. If nothing can be done
to restore the anondising, how easy would it be to paint? Would I have
to remove the anondising first to get the paint to apply properly, or
are primers available that would adhere to the anondising?
18 years ago