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"foggytown"

27/09/2005 8:02 AM

Sap pocket

I am just so-o-o-o-o-o lucky!

Finished a pine overarm sofa table. The top had two coats of matte
poly over two coats of wood dye. A few days after completion I noticed
a "sticky" patch on the edge of the top. Sniff, sniff . . . pine sap?
Clean thouroughly and two more coats of poly. Few days later, same
bleed occurs. This went on for about two weeks then stopped.

I think somehow I just knicked the edge of a sap pocket which didn't
show up until after I'd applied the finish or maybe the sap expanded in
the heat of the house and "burst"? I dunno. Just surprised it bled
through the poly. Twice.

FoggyTown


This topic has 1 replies

GG

"George"

in reply to "foggytown" on 27/09/2005 8:02 AM

27/09/2005 11:24 AM


"foggytown" <[email protected]> wrote in message
news:[email protected]...
>I am just so-o-o-o-o-o lucky!
>
> Finished a pine overarm sofa table. The top had two coats of matte
> poly over two coats of wood dye. A few days after completion I noticed
> a "sticky" patch on the edge of the top. Sniff, sniff . . . pine sap?
> Clean thouroughly and two more coats of poly. Few days later, same
> bleed occurs. This went on for about two weeks then stopped.
>
> I think somehow I just knicked the edge of a sap pocket which didn't
> show up until after I'd applied the finish or maybe the sap expanded in
> the heat of the house and "burst"? I dunno. Just surprised it bled
> through the poly. Twice.

Shellac is the next great hope after resin-setting in the kiln.

I've similar luck when carving utensils out of tamarack, a lovely durable
wood. With 90% of the work done, I can find a resin pocket in the worst
possible location.


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