It sounds like you've applied enough epoxy to make the wood waterproof. I believe the rule of thumb is 2 coats on bare wood. With two layers of cloth, you should have plenty.

Ross

> I am wondering if it is necessary to fill the weave inside the yak to
> totally seal the lay-up from moisture. I applied a single seal coat to the
> wood, then 2 layers of 4 oz cloth.