I have been reading about a process of restoring rotten wood by soaking
resin into the wood making it as good as new or better.

I am not an expert in this area. I just read a publication from West
System about making minor and major repairs on fiberglass boats. It
mentioned about methods of restoring wooden elements in a fiberglass
boat. Their suggestion is to warm the wooden part and the mixed epoxy
to allow the epoxy to flow better and deep into the wooden element.

Nevertheless, they still recommend people to replace the wooden element
instead of using epoxy to "fix" it under some situations (I don't
remember what the situations are; I "guess" something like too many
areas need to be repaired or the area is a critical structural
element). You may want to get a copy of that publication for $3 (I
bought mine from West Marine) to see what they have recommended. West
System makes money by selling epoxy. If they ask people to replace the
wood (under some situations) instead of using their products, I would
think that they are onto something.

Jay Chan

Hi

It is better to cut away more than just the rotten wood, so a new piece
glued with Epoxy will carry the loads ------- even with a bad fit it is
better to replace the bad wood with new and _then use the Epoxy to what
it is perfect for, as glue. What's so good about Epoxy is just that
even a bad fit don't matter that much as with other glues ,in fact I
think, it is often better to replace the rotten wood with Epoxy rather
than even thinking about using it as reinforcement for epoxy. With spot
repairs it is also better to have a hand router with a copy ring and a
few standard patches that fit with the router template.
Use Epoxy like that and the repairs will last longer than the boat.