Bruce schreef in


On 11 Jul 2007 21:08:43 GMT, Lodewijk Stegman
wrote:

For instance: wood shrinks and swells with changing humidity. Epoxy
won't move with it. How do you engineer that?

Well, I have seen a large number of boats built of wood and epoxy -
strip planked, cold molded and duracore composite all come to mind.
These boats are all made of wood and epoxy and seem to have no
problems with dimensional changes due to moisture content.

You don't have to convince me.

I have seen those boats too. And you and I know why these boats have no
problems with dimensional changes due to moisture content.
The moisture content does not change (enough) to crate problems, once the
wood is sealed from external moisture.
Which seems to prove that epoxy is waterproof enough for this purpose.

Practically spoken, epoxy is waterproof.

--
Lodewijk