Plywood sealer

[zippy83]

HI All,

I am re-doing my decks on my boat and will be using 3/4" plywood. I know not to use pressure treated plywood on aluminum hulls so my question is what would be the best product to seal the plywood for maximum durability?

I know there are sealers and stains you can get from Home Depot but what would you recommend?

Thanks
Zipp

 

[crazy charlie]

I assume you are using marine plywood?? .West system has excellent products exactly for that.Lots of different ways/costs to do it.

 

[zippy83]

Where I live I cant get Marine Plywood. I will be using the best plywood that I can get my hands on.

 

[crazy charlie]

you are gonna want to use something with very high absorbtion so the wood sucks it in .are u gonna fiberglass it?

 

[robert graham]

I use polyurethane that has been thinned out for good absorption....then multiple coats....add a coat every year or so...

 

[zippy83]

you are gonna want to use something with very high absorbtion so the wood sucks it in .are u gonna fiberglass it?

I am not sure what you mean by fiberglass it. So I would say No

 

[zippy83]

I use polyurethane that has been thinned out for good absorption....then multiple coats....add a coat every year or so...

I wont be able to add a coat every year because I plan on carpeting the whole thing. For this instance I will use Marine Carpet..

 

[crazy charlie]

Im not an expert here but the combination of using regular plywood and covering it with carpet is gonna lead to it getting wet and staying wet and rotting out prematurely.Better wait for some advice from someone who has actually done the same before.Everyone here has opinions but you are going to need to hear from someone with actual experience.Charlie

 

[robert graham]

I use polyurethane that has been thinned out for good absorption....then multiple coats....add a coat every year or so...

 

[Scott Danforth]

in an aluminum boat - ACX plywood and cover with carpet. leaving the bottom and sides open for the wood to breath. it will last decades

or you can simply coat it with Woodonglass old timers formula in his signature

 

[zippy83]

I use polyurethane that has been thinned out for good absorption....then multiple coats....add a coat every year or so...

How do you thin polyurethane ?

 

[zippy83]

OK I was able to locate a store outside of where I live that sells marine grade plywood (non pressure treated) would I still need to stain this as well?

 

[Scott Danforth]

OK I was able to locate a store outside of where I live that sells marine grade plywood (non pressure treated) would I still need to stain this as well?

the original marine plywood in your boat had nothing on it and lasted how many decades? I would buy the marine plywood, slap some carpet, vinyl, etc on it and go boating.

 

[zippy83]

the original marine plywood in your boat had nothing on it and lasted how many decades? I would buy the marine plywood, slap some carpet, vinyl, etc on it and go boating.

Roger !!!!

 

[robert graham]

I wont be able to add a coat every year because I plan on carpeting the whole thing. For this instance I will use Marine Carpet..

Well a couple of coats now, then carpet and you should be good to go for several years.....

 

[JASinIL2006]

I’d be using this stuff on the wood; the formula from Woodonglass:

 

[Woodonglass]

If you want to have a worry free deck for decades then buy a Gallon Kit of Epoxy Boat Resin, and coat the plywood with as many coats as you can from the gallon. Pay close attention to the edges. Do NOT thin the epoxy. Set it in the sun for a few hours and it will flow and penetrate a lot better. Once cured (48 hrs) you can lay your carpet and not worry about it again.