Hi folks,

I remember reading about an anodising touch-up pen somewhere. Not a
metallic paint marker, but a pen which uses a chemical to form a coating
similar to anodising. I want to touch-up a bit of silver anodised
aluminium on one of my gear pullers, which unfortunately got rubbed on
the edge.

Anyone know if such pens are available and if they're any good? Likely
sources would be appreciated (particularly sources in the UK).

Many thanks,

Chris