Subject: Re: [harryproa] Copper foil as part of the infusion? |
From: Rob Denney |
Date: 5/1/2012, 7:22 PM |
To: harryproa@yahoogroups.com.au |
Reply-to: harryproa@yahoogroups.com.au |
Never tried it in an infusion, but have tried to bond copper/bronze/brass with epoxy. Very difficult and unreliable, not recommended. Their are some adhesives which do work with copper sheet, so maybe put it on post bending. Not sure how it would handle being dragged up trailers.
I was wondering if anyone had experience with making copper foil a
part of the panel infusion. The underwater surface area of a Harry
(39' ish) is roughly 200 sq ft. I checked 5mil copper sheeting and
100sq weighs 25lbs, so the weight increase seems minimal. With the way
Rob is making the hulls now, it would seem relatively easy to just
make it part of the panel when you infuse it, except for the bows.
If this could be a relatively permanent corrosion preventative, it is
appealing to me. Without any thru-hulls below the waterline, galvanic
corrosion seems less of an issue.
For those (like me) who are not acquainted with 5mil copper, here is a
quote from a very useful woodworker veneering site
(http://www.joewoodworker.com/veneering/faq-copper.htm) :
"Technically speaking, the copper veneer is .005" or 36 gauge. To get
a real-world idea, the copper is almost twice as thick as the aluminum
used to make a soda can or 7 times the thickness of aluminum foil."
- Gardner