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Beardow T & P September 18th 07 06:40 PM

Surface Moistures and Epoxy
 
I am milling 16' lengths of western red cedar into strips for a jollyboat.
This wood is fresh from the forest and is moist to touch.

Can I have some opinions on what the surface moisture shld be before I
epoxy and FG this stuff?

Cheers, T.
--



cavelamb himself[_4_] September 18th 07 06:52 PM

Surface Moistures and Epoxy
 
Beardow T & P wrote:

I am milling 16' lengths of western red cedar into strips for a jollyboat.
This wood is fresh from the forest and is moist to touch.

Can I have some opinions on what the surface moisture shld be before I
epoxy and FG this stuff?

Cheers, T.
--



As a starting point? 12 to 15%

Paul Oman September 18th 07 06:52 PM

Surface Moistures and Epoxy
 
Beardow T & P wrote:

I am milling 16' lengths of western red cedar into strips for a jollyboat.
This wood is fresh from the forest and is moist to touch.

Can I have some opinions on what the surface moisture shld be before I
epoxy and FG this stuff?

Cheers, T.
--




some epoxies can actually be mixed and applied underwater. Some can be
applied to damp surfaces, others cannot.

The real concern should not be the epoxy but rather the movement of
the wood. Woods expand and contract with moisture, other things,
including epoxy, expand and contract with temperature...

paul oman
progressive epoxy polymers inc
www.epoxyproducts.com

Lew Hodgett September 18th 07 08:44 PM

Surface Moistures and Epoxy
 

"Beardow T & P" wrote in message
news:A4UHi.195768$fJ5.173267@pd7urf1no...
I am milling 16' lengths of western red cedar into strips for a

jollyboat.
This wood is fresh from the forest and is moist to touch.

Can I have some opinions on what the surface moisture shld be before

I
epoxy and FG this stuff?

Cheers, T.
--



Talk to Gougeon.

Lew



Dave W September 21st 07 01:55 PM

Surface Moistures and Epoxy
 
Fortunately, the cedar will dry very quickly if if is cut into thin strips.
A few weeks outdoors protected from rain should do it.
Dave
"Beardow T & P" wrote in message
news:A4UHi.195768$fJ5.173267@pd7urf1no...
I am milling 16' lengths of western red cedar into strips for a jollyboat.
This wood is fresh from the forest and is moist to touch.

Can I have some opinions on what the surface moisture shld be before I
epoxy and FG this stuff?

Cheers, T.
--




Beardow T & P September 24th 07 12:18 AM

Surface Moistures and Epoxy
 
Thanks for the advice, guys!

T.

"Beardow T & P" wrote in message
news:A4UHi.195768$fJ5.173267@pd7urf1no...
I am milling 16' lengths of western red cedar into strips for a jollyboat.
This wood is fresh from the forest and is moist to touch.

Can I have some opinions on what the surface moisture shld be before I
epoxy and FG this stuff?

Cheers, T.
--




jim.isbell September 25th 07 01:42 AM

Surface Moistures and Epoxy
 
On Sep 23, 6:18 pm, "Beardow T & P" wrote:
Thanks for the advice, guys!

T.

"Beardow T & P" wrote in messagenews:A4UHi.195768$fJ5.173267@pd7urf1no...

I am milling 16' lengths of western red cedar into strips for a jollyboat.
This wood is fresh from the forest and is moist to touch.


Can I have some opinions on what the surface moisture shld be before I
epoxy and FG this stuff?


Cheers, T.
--


My advice. Bone dry. I recently built a canoe with Western Red Cedar
and Teak strips. It was dry, or so I thought. I fiberglassed it and
then laid on 10 coats of varnish over a period of several weeks. Each
coat had dried for more than 24 hours, including the epoxy. Then I
set it on the lawn for several hours where it was in the sun while I
took some pictures of it. That afternoon I went to retrieve it and
found hundreds of white, tiny, bubbles coming up through the well
cured epoxy and glass. It looked like needlepoint as each of the
little bubbles was evenly spaced by the grid of the glass cloth. ALL
the bubbles were from the strips of Cedar. Apparently the Teak was
too dense to hold moisture.



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