Jib hanks and corrosion

[kjsailingSpring]

I used a different jib this weekend, one with copper hanks. I got caught in a storm and left the jib hanked on overnight. When I removed the jib the next day, nearly all the copper hanks were covered with green corrosion. In just one night? Is this a sign of a serious corrosion problem on my boat? I am struggling with other small spots of corrosion but is this normal?

Any information would help!

Thank you -
KJ

[chuckg5]

Acid rain will do that.
anyway, they are probably bronze.
you need to spray them with lithium (waterproof) grease while opening an
closing the springs. should last the 'season'

[kjsailingSpring]

Thanks much chuckg! Yes, they are bronze and I'm relieved it is not a sign of a bigger problem. Thanks for letting me know about the grease and I'll get at it this weekend.

[sailingdog]

Not really a big deal, since the corrosion usually stops with a fine green patina over the whole surface...however, the corrosion can interfere with the opening and closing action, and a good dry lubricant, like McLube Sailkote is probably better than a grease, since it is far less likely to attract dirt and gum up the action of the spring loaded pin.

[sailaway21]

I second the Dog's rec. for Sailkote. The stuff flat out works.

[sailingdog]

I bought the gallon size of it...and put some into little spray bottles... amazing stuff...damn useful.