Originally Posted by Ian M
I think you will find that AW100 refers to the glue used, and the gluing process, which while it MAY have a bearing on the water resistance of the finished board, does not mandate it. AW100 does NOT specify the type of wood used, and hence does NOT by itself give a measure of water resistance. The one sure way to ensure water resistance is to coat the plywood.
Why? Many, if not most hulls in the UK are manufactured using polyester resin. Do you mean something else?
Yep, right, there is used water resistant glue to the layers of
the plywood, so my description could be misunderstood.... wood
itself couldnt be water resistant in no case.
No, nothing else, i mean Polyester resin. As long as you not protect
the surface of polyester it is not watertight, water will penetrate the
resin, espeacially at the downside of the floor. (Inside the open hull)
All polyester resin Hulls are coatet & protected by gelcoat or good
thick 2K colours. Epoxy resin dont Need to be maintained as much.
If coat is gone on polyester, water will went trough the resin into the
The open working time on epoxy resin mixture (before getting jelly) is also
much easyer to work/ control & handle on. Polyester surface often stays sticky after hardening out if circumstances not 100% perfect. Epoxy also
stick stronger, gets harder and stiffer than polyester.
Yes, ist more expensive than polyester, but my personal experience is
that ist worth it. Polyester will do the Job & save some bucks.