Had to remove a quill stem with a frozen, stripped quill bolt. Got it done. Reinstallation may be tricky, however.
Al immediately creates aluminum oxide when expose to air. It is harder than the base metal. Doesn't change with water or dirt. No need to coat.
Thinking about it, salty water or acid rain would make a difference. Good call.Not exactly. The surface is not uniformly exposed to the elements, so in time you’ll see spots and discoloration. I used a precut kit from invisaframe, the few parts that were not covered by the plastic film have taken a slight patina, while under the clear film it’s as good as new. Granted, the clever people at Knolly gave the frame a brush ‘natural’ look that would minimize the patina visual impact.