Could it be from oxidation inside the mast - it seems to build up as a fine black powder.
K killarney_sailor · Bristol 45.5 - AiniA Joined May 4, 2006 · 4,525 Posts Reaction score 1,927 #3 · Aug 29, 2014 View full thread Could it be from oxidation inside the mast - it seems to build up as a fine black powder.