[Scott]

So your saying that the hull itself is delaminated (the fiberglass lamination) in the area of holes that where placed there for the transducer. Sounds like the woven roven/mat (used to lay the boat up) has been compromised ?? Dose the fiberglass guy think this is through out the hull??
I would think you could "sound" the hull to get a feel if you've got similar issues in other spots on the hull.

That would be interesting to see as I don’t think I have ever seen that type lay up delaminate(not saying that it isnt possible...I really dont know ). As I recall SeaCraft had a pretty robust lamination schedule using alternating layers of mat and roven….I just don’t understand how that could separate, Its like a glued joint in wood … if done properly should never fail in the joint. Between the resin, the mat (which chemically reacts with the resin and forms a bond) and the roven…I personally don’t know how that would come apart ….something cored is a different situation.

Trayders boat , also a 20 , was pretty bad ... such that I recall him saying the hull would flex as it went up on plane (due to busted up stringers) but I dont recall him saying anything about the hull itself delaminating.

AS far as the bottom goes I don’t know if stripping will help determine if there is further delamination as this would be hidden under the gelcoat (I dont think your planning on stripping the gelcoat down to the laminate). If anything you may see some blistering …. But that another story and is somewhat common in older boats that sit in the water. Plus that’s not a big deal to fix.

I guess (a long shot) if the laminate wasn’t wetted out and the holes were not sealed (transducer) water could travel into the laminate …via capillary action …… freeze and delam ….Thats a big long shot/stab in the dark however … I really don’t even know if thats possible

I’m real curious to hear more about this and if others have seen such a situation