[C320-list] Catalina 320; interior varnish refinish

[Chris Burti]

That would be possible from water staining the wood…doesn’t show up until you varnish. Oxalic acid wood bleach will lighten it before varnishing. It is the active ingredient in Zud and Barkeepers Friend cleansers.., doesn’t harm the wood fibers.

Thanks,
Chris Burti
Farmville, NC

From: mmellon at cruzio.com
Sent: Saturday, June 2, 2018 4:33 PM
To: C320-list at catalina320.com
Subject: [C320-list] Catalina 320; interior varnish refinish

Can someone provide some guidance on refinishing of the teak trim strips
under the portlights on both starboard and port sides?  I had some
varnish damage due to a leaking portlight gasket.  I sanded the area and
then attempted to re-varnish using a clear satin varnish (Behr first,
then Defthane).  In both cases, the wood came out considerably darker in
the revarnished area. 

I'm not sure if the Catalina factory used a sealer before the varnish or
not.  While I am not using the water-based Target Coatings varnish the
factory reportedly uses, I would not expect such a difference in color. 

Any suggestions? 

Thanks. 

Mike Mellon, LaVida 1996 #324