To Glass or Not to Glass?

To Glass or Not to Glass?

Post by Bruce Mill » Fri, 23 Aug 1996 04:00:00


I am rebuilding a 60 yr old Stampfli single rowing shell.  The hull is

Quote:
>1/8 " spanish cedar.  It has several cracks that have been repaired with

epoxy, and several more that I will have to fix.
Early on I decided I would have to put 4oz fiberglass on the hull, but now
that I have stabized the ribs against the hull with epoxy, it is quite stiff
and solid.  So I'm having second thoughts about all the work I would
have to do and the weight that it would add to the boat.
I wonder if I can get away with 3 coats of varnish?  If that led to failure in
the hull skin, I could then add the cloth and epoxy.  Would that require
removing all the varnish?  
Anyone with experience on this sort of reconstruction who has advice?
 
 
 

To Glass or Not to Glass?

Post by Robert Mart » Fri, 23 Aug 1996 04:00:00

: ...
: I wonder if I can get away with 3 coats of varnish?  If that led to
: failure in the hull skin, I could then add the cloth and epoxy.  Would
: that require removing all the varnish?

IMO, to bond the epoxy to the hull, you'd have to remove the varnish.

Why not consider using epoxy instead of varnish?

--

     Bob Martin


 
 
 

To Glass or Not to Glass?

Post by cusd » Fri, 23 Aug 1996 04:00:00

The varnish would have to be removed completely. You could try coating
with epoxy only w/o the cloth but it also needs to be varnished to
UV stabilize it. The added strength of the cloth more than offsets
the added weight which would not be much.
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