I haven't changed the plywood that is bolted to the transom of an aluminum boat since I was a kid. I have a 16' Starcraft that has a piece of 3/4" plywood bolted to the transom and it is in need of replacement. Is there a better product out there? Or should I just use another piece of plywood? I was going to use treated or marine ply but asm't sure if there is something new that is better to use.

Spud

Whatever you do don't use pressure treated with aluminum. It will eat your aluminum very quickly. I would use marine grade plywood with a sealer that it compatible with aluminum.

Whatever you do don't use pressure treated with aluminum. It will eat your aluminum very quickly. I would use marine grade plywood with a sealer that it compatible with aluminum.

Good advice. I was unaware that there is a chemical reaction between the two. I have a piece of MDO (Medium Density Overlay) with the paper glued to one side. Its supposed to be marine grade, used on sign work a lot. I think some marine paint and primer and I'm good to go.

Hey Spud !
I’m thinking that MD won’t hold… I dun no !

I had a plywood delam over years and went with a pcs of pvc on the back and a pcs of , um, hard pine interior..
Not a ton of use yet but thinking it’ll outlive me… LOL

69532


69533

just get regular marine grade fir plywood
epoxy it and be done with it

if you plan to have it a long time, coat it with 3 coats of a thin enough penetrating epoxy to begin with once it is fitted. Then glass it in place.

Thanks guys. I will talk to a buddy about a piece of Marine ply, and I might have a scrap of PVC laying around.

Thanks guys. I will talk to a buddy about a piece of Marine ply, and I might have a scrap of PVC laying around.

Hooked...I have alot of 3/4" pvc scraps in my shop that I would be happy to give you. Let me know approx size and I'll "hook" you up

Hooked...I have alot of 3/4" pvc scraps in my shop that I would be happy to give you. Let me know approx size and I'll "hook" you up

Thank you very much! I am up in North country right now, but will contact you this week.