What type of adhisive do I need for new carpet on pontoon

roger56

Petty Officer 2nd Class
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Jun 28, 2012
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Just put new decking down (treated) some outdoor carpet glues say they cannot be used over treated plywood.
8x16 area outdoor carpet just for deck.
 

Georgesalmon

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Weldwood contact cement. Don't follow the directions. Put some glue on the wood, let dry and put some more on. Then a small area at a time, put some glue on the carpet and press it down before it completely dries. If done this way you can reposition it, if the glue is dry it will stick hard and that's all she wrote. The glue will dry completely after your done. A carpet roller might help but I've always had good luck with just me hands., Good luck.
 

Grub54891

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Jun 17, 2012
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Maby things have changed but I'm sure you should not use treated ply or treated wood of any kind on boats. The chemicals eat up alum,corrode it badly. Hopefully someone will tell me if I'm right or wrong.....
 

bruceb58

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Maby things have changed but I'm sure you should not use treated ply or treated wood of any kind on boats. The chemicals eat up alum,corrode it badly. Hopefully someone will tell me if I'm right or wrong.....

I agree. I would not be using any treated plywood that contacts aluminum which is what will be happening on a pontoon boat.
 

jetboater

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Jan 13, 2004
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Agree as well---you should be using marine plywood rather than pressure treated. The chemicals in the pressure treated will dissolve aluminum over time.
 

MH Hawker

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If your using PT plywood its a do it over with the right stuff.
 

Georgesalmon

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Several pontoon companies are using treated plywood. They isolate it from the aluminum by using spacers. It will mess up the aluminum with direct contact/
 

MinUph

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Jun 5, 2011
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Several pontoon companies are using treated plywood. They isolate it from the aluminum by using spacers. It will mess up the aluminum with direct contact/


This is correct. If the PT is isolated from contact with the aluminum it will do no harm. But I would not do this myself. Factories have many technologies available to them that a DIYer will not. Picture the bolts that hold the plywood in place. If these aren't isolated and start to work on both the pt plywood and the aluminum you might have an issue. Best for a DIYer to use Marine grade plywood to be safe. Not PT.
 
Last edited:

ahicks

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Sep 16, 2013
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Well, the last time I did a re-deck with new carpet was before we had places like this one to post questions to. It was a '79 24' Crest. Not knowing there might be an issue, I used "outdoor" rated 3/4" ply purchased from a local lumber company. Used marine carpeting and re-assembled using all stainless fasteners because getting a lot of it apart was a pain with the OEM fasteners. In hindsight, the only thing that really wasn't right when I sold it 10 years later was that I should have used more glue or done something at the plywood seams. They were visible. I didn't look for issues where the deck met the alum, but there was nothing that ever drew my attention either?

Not endorsing the procedure, nor condemning. Just passing on an experience I had. YMMV.
 

jigngrub

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Mar 19, 2011
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Well, the last time I did a re-deck with new carpet was before we had places like this one to post questions to. It was a '79 24' Crest. Not knowing there might be an issue, I used "outdoor" rated 3/4" ply purchased from a local lumber company. Used marine carpeting and re-assembled using all stainless fasteners because getting a lot of it apart was a pain with the OEM fasteners. In hindsight, the only thing that really wasn't right when I sold it 10 years later was that I should have used more glue or done something at the plywood seams. They were visible. I didn't look for issues where the deck met the alum, but there was nothing that ever drew my attention either?

Not endorsing the procedure, nor condemning. Just passing on an experience I had. YMMV.

If your redeck was before 2002 you were fine, back then treated wood was CCA treated and compatible with aluminum contact. They changed the formula in 2002 and went to ASQ formula that is corrosive to aluminum.

You can still buy CCA treated decking for boats, but it's hard to find and your local lumber yards and big box stores don't carry it.

Manufacturers that use PT decking on boats use the CCA treated.
 

ahicks

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Your hunch is correct. This would have been around that time, maybe a little previous.
 
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