I am working on my Nacra 5.2 and I have a problem with the jib zipper: it is sticky and there is some kind of white powder on it.

I suspect that it is galvanized and the powder is zinc oxyde.

Is there some way to fix this, Maybe cleaning it or using some lubrification on it.

I am also thinking about replacing the zipper. Any idea of the kind of zipper required and a source find one

Charles Leblanc
Nacra 5.2