Hi

"Pete C" skrev i en meddelelse
...
If it's going in other places then it may because the canvas has not
been painted properly when it was applied. The paint should fill the
weave of the canvas completely and the bond it to the ply leaving no
gap between them.

If you find a book about boating from before the hippie age, you will se
that you DO NOT use the paint as resin and the canvas as glasfiber , but
acturly make sure that the canvas Do NOT stick to the deck. The way you make
sure that the canvas DO NOT stick to the deck, is to seal with linseed oil
and water the canvas to make it tight , ------- in the old day's you painted
while the canvas was just damp ,to be sure the paint DID NOT penetrate the
canvas and if it did, the linseed oil shuld make it not happen.
Why , ------- well if you seen the difference you know why, as done right
canvas will last decades but glued with paint, it will not last more than
one or two years.
Another lost art.

P.C.
http://home20.inet.tele.dk/h-3d/

On Tue, 10 Feb 2004 00:38:30 +0100, "P.C."
wrote:

Hi

"Pete C" skrev i en meddelelse
.. .
If it's going in other places then it may because the canvas has not
been painted properly when it was applied. The paint should fill the
weave of the canvas completely and the bond it to the ply leaving no
gap between them.

If you find a book about boating from before the hippie age, you will se
that you DO NOT use the paint as resin and the canvas as glasfiber , but
acturly make sure that the canvas Do NOT stick to the deck. The way you make
sure that the canvas DO NOT stick to the deck, is to seal with linseed oil
and water the canvas to make it tight , ------- in the old day's you painted
while the canvas was just damp ,to be sure the paint DID NOT penetrate the
canvas and if it did, the linseed oil shuld make it not happen.
Why , ------- well if you seen the difference you know why, as done right
canvas will last decades but glued with paint, it will not last more than
one or two years.
Another lost art.

I think that's the right approach for traditionally planked decks
where the planks expand and contract and the gaps in between help
allow any trapped water to dry out - or leak in the boat , but I'm
not sure it's necessary with plywood which is very stable, and where
the layers of glue tend to prevent the wood drying out. Why would you
not want the canvas to stick to the plywood?

cheers,
Pete.

P.C.
http://home20.inet.tele.dk/h-3d/

OK thanks a lot for all the feedback, I'll shortly be investigating further.

Ken