LZ

Luigi Zanasi

27/12/2005 4:16 PM

Shellac or poly for window trim?

I made a bunch red oak window trim (stools, headers & all that). I
just have a couple of aprons to make and finishing is upon me. I tried
some shellac on a scrap as well as some water-based varathane. It goes
without saying that the shellac looks much better. But I'm concerned
about durability and, especially, the effect of condensation on the
stools.

For those of you who think I'm talking shit, "stool" is the technical
term for the piece of trim that goes on top of a window sill.

What would you do? Any specific experiences you've had? or other
recommendation?

Luigi
Replace "nonet" with "yukonomics" for real email address
www.yukonomics.ca/wooddorking/humour.html
www.yukonomics.ca/wooddorking/antifaq.html
http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Woodworking


This topic has 5 replies

Dd

David

in reply to Luigi Zanasi on 27/12/2005 4:16 PM

27/12/2005 4:43 PM

Luigi Zanasi wrote:

> I made a bunch red oak window trim (stools, headers & all that). I
> just have a couple of aprons to make and finishing is upon me. I tried
> some shellac on a scrap as well as some water-based varathane. It goes
> without saying that the shellac looks much better. But I'm concerned
> about durability and, especially, the effect of condensation on the
> stools.
>
> For those of you who think I'm talking shit, "stool" is the technical
> term for the piece of trim that goes on top of a window sill.
>
> What would you do? Any specific experiences you've had? or other
> recommendation?
>
> Luigi
> Replace "nonet" with "yukonomics" for real email address
> www.yukonomics.ca/wooddorking/humour.html
> www.yukonomics.ca/wooddorking/antifaq.html
> http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Woodworking
if it's in the sun a lot, you've got more problems than just
condensation. Look for a clear finish with UV inhibitors.

s

in reply to Luigi Zanasi on 27/12/2005 4:16 PM

27/12/2005 5:14 PM


Luigi Zanasi wrote:
> It goes without saying that the shellac looks much better. But I'm concerned
> about durability and, especially, the effect of condensation on the
> stools.
>

Shellac is a No-No in the direct exposure of the sun. Mix with that, a
little condensation? No-no-no-no. Spar varnish, there are many brands
that carry a poly blend that they will label as Spar varnish. I've used
this on boat hulls when I knew the boat would be removed from the water
daily. Shellac will not perform like this. Shellac will crack, give up,
flake off and die. Go look at an old house with shellac window trim or
an old tool handle like a handsaw handle or a plane tote. My boat
finish is over 2 years old now. There are some funky spots but it's
mostly wear and damage from use that your average window trim will
never see.

Tom in KY, where the river banks are mud and rocks, driftwood and
submerged steel. And I seem to find it all. Then I proceed to track it
all over the top of my boat.

GG

"George"

in reply to Luigi Zanasi on 27/12/2005 4:16 PM

28/12/2005 7:10 AM


"jd" <[email protected]> wrote in message
news:[email protected]...
> I'll second the spar varnish idea. I did all of the trim in my daughters
> room 7 years ago. the trim is the original (100+year old) gereic white
> softwood (spruce, pine, whatever). I liked the idea of the warm color of
> garnet lac, but ended up using spar varnish because of the expected sun
> and water exposure.
>

Ayup. Long-oil varnish with UV inhibitors is best, second would be a
linseed-based Danish oil of some sort. The linseed will amber and mellow
things out, while giving a flexible film. Easily fixed compared to spar.

jh

"jd"

in reply to Luigi Zanasi on 27/12/2005 4:16 PM

27/12/2005 8:40 PM

I'll second the spar varnish idea. I did all of the trim in my daughters
room 7 years ago. the trim is the original (100+year old) gereic white
softwood (spruce, pine, whatever). I liked the idea of the warm color of
garnet lac, but ended up using spar varnish because of the expected sun and
water exposure.

it still looks great.

-_JD





"Luigi Zanasi" <[email protected]> wrote in message
news:[email protected]...
>I made a bunch red oak window trim (stools, headers & all that). I
> just have a couple of aprons to make and finishing is upon me. I tried
> some shellac on a scrap as well as some water-based varathane. It goes
> without saying that the shellac looks much better. But I'm concerned
> about durability and, especially, the effect of condensation on the
> stools.
>
> For those of you who think I'm talking shit, "stool" is the technical
> term for the piece of trim that goes on top of a window sill.
>
> What would you do? Any specific experiences you've had? or other
> recommendation?
>
> Luigi
> Replace "nonet" with "yukonomics" for real email address
> www.yukonomics.ca/wooddorking/humour.html
> www.yukonomics.ca/wooddorking/antifaq.html
> http://en.wikipedia.org/wiki/Wikipedia:WikiProject_Woodworking

Ba

B a r r y

in reply to Luigi Zanasi on 27/12/2005 4:16 PM

29/12/2005 12:31 PM

Luigi Zanasi wrote:

> What would you do? Any specific experiences you've had? or other
> recommendation?


I've done miles of red oak trim and doors with a coat of Sealcoat and
two coats of Waterlox Original, Pratt & Lambert, or my favorite, Sherwin
Williams fast dry oil based varnish.

All of it, including some very wide window sill shelves are doing well.
The Sealcoat adds a touch of golden color that's very nice.

Barry


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