Re: corrosion removal
Re: corrosion removal
I think he was asking about the lamination process for 3 sheets of 1/2 (originally, or at least what was there when he pulled it out)
Unless you have @3/4+ sheet of 1/2ply (exterior grade) laying around already, get a sheet of 3/4" ply that is made w/ waterproof glue: Arauco, underlayment, MDO (looks like plywood w/ outer layer that looks like brown grocery bag, NOT that chewed up, glued together sawdust MDF carp) and exterior grade plywood are all commonly used, usually available plywood. Marine grade is a good quality, expensive & not usually readily available product.
Use waterproof glue (PL premium, TiteBond3, Gorilla Glue) & completely cover the plywood face, set the 2 pcs together, clamp/screw/secure pieces so they won't slide around on ya while they dry, set it on a flat level surface to cure.
You can drill a few holes through the side you are not applying the glue to. This will allow air to escape & help insure a complete & total bond between the 2 sheets w/ no voids. You can fill the holes prior to sealing the ply up w/ whatever you plan to use for that. You want to try & maximize screwing & clamping to aid in the bonding, but not so tight as to squeeze out the glue & starve the joint of glue. Jas has good pix & details in all 3 of his builds @ the transom construction & his clamping system:facepalm:
Then jump back to Jas list above....