Re-Glassing Outer Skin after Transom Replacement

[Parkhil2]

I decided to remove the outer skin of my 19' Robalo to replace the transom, luckily got into it and the stringers are good. I have my 2 peices of 3/4" ply cut and fit, need to do a final sand of the areas of the boat the transom will be glassed to tomorrow. I plan to coat both peices of ply in resin, use 1.5oz mat on the inside of 1st sheet, 6oz between the two sheets and 1.5 oz on the outside of the second sheet, screw the pieces to the inner skin and the the stringers directly, the attach the outer skin. I left about 1.5 - 2" of glass around the entire transom. Since I am not all that concerned with Cosmetics I was wondering what suggestions anyone had for glassing the seem. I know that I should feather it back to nothing at the joint, but I dont want to comprimise strenght for looks, would it be better if I just sanded the gel coat off the 1.5" - 2" peice remaining and lay my seem material right over it? what should I use for seem material. I have 1.5oz mat, 6oz cloth. and 24oz roven. any and all suggestions are appreciated. I will post pics of the entire process once complete. With a little luck I'll be in the water next weekend

 

[JasonJ]

Re: Re-Glassing Outer Skin after Transom Replacement

Its too bad you didn't ask before cutting that outer skin. You should never cut that outer skin on a transom replacement, it compromises the strength no matter how you rebuild it or what you rebuild it with. Since you did it, hopefully someone who was brave enough to do such a thing will give you further guidance. My only caveat is if your boat is an I/O, then you ase better off. Outboard powered boats are where the transom needs to be really strong. Good luck...

 

[ondarvr]

Re: Re-Glassing Outer Skin after Transom Replacement

When you said resin, I hope you mean epoxy resin, you will need this repair to be as strong as possible. Use fiberglass desinged to be used with epoxy and use many layers. 1.5" to 2" isn't much to tie into, so sand it very well with coarse (36 grit) sand paper to get the best possible bond.

 

[sincraft]

Re: Re-Glassing Outer Skin after Transom Replacement

Hmmmmmmm, when you say epoxy ondarvr, is it possible for him to us epoxy on a poly gelcoat boat? Thought epoxy didn't bind to poly?<br /><br />S

 

[Bondo]

Re: Re-Glassing Outer Skin after Transom Replacement

Originally posted by sincraft:<br /> Hmmmmmmm, when you say epoxy ondarvr, is it possible for him to us epoxy on a poly gelcoat boat? Thought epoxy didn't bind to poly?<br /><br />S

You've got it Backwards................<br /><br />Epoxy Sticks to Everything.........<br /><br />Polyester sticks to Next to Nothing,....... It's a Casting Resin,.. Not a Glue, like Epoxy...........