[C320-list] Catalina 320; interior varnish refinish

[mmellon at cruzio.com]

Hi, Chris.  The water staining was only in a  1 inch or so wide area
under the portlight - the area I have sanded down to the teak is more
like 10 inches long and that entire sanded area is showing the darker
color when varnished.  The area that was water stained sanded out quite
easily. 

Mike 

On 2018-06-02 13:55, Chris Burti wrote:

> 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