? DIY Utility Trailer Deck "Paint" ?-

Behr DeckOver. (and you can get it tinted to any color).

I have a couple old docks at my house that I wanted to get another year or 2 of use out of before redoing the decking. I purchased some Behr Deckover coating at Home Depot and applied it. It's pretty thick, almost like mud. It will fill cracks and gaps and is non-skid. Well, that was 3-4 years ago and it's still looking good. Holds up to Florida sun and occasional high tides putting it underwater.

Don’t paint.
Use any sort of penetrating sealer.
Any product that is high build (like paint), will have the propensity to lift and peel after extended wet weather and also will peel chip, get destroyed if you’re actually using the trailer. Making the chance of above happen even quicker.
You’re very unspecific as to the surface. “Wood deck” could mean anything. And also the age of the deck.
If it was just an old utility trailer with old lumber boards, I’d soak it with a penetrating sealer, or give it a couple coats of used motor oil.

Using a deck paint and a bag of friction additive, or a few handfuls of playground sand makes a protective deck covering that’s non skid.

Thompson Water Seal

I have a 30 year old utility trailer in the yard that now needs a new deck. The old one is 3/4" treated plywood. I have hauled a lot of firewood, horse and goat manure and just about anything else. Keep it simple. Use the stuff that is made for that purpose.

In case you haven’t put down the deck yet, I used 5/8ths marine plywood and left it “au natural”.

Dave

JUst us 'epoxy deck paint" from the local hardware store. That is what it is designed for after all.

My first thought would be like what you said...the bed liner coating like Rhino coat or Line-X. I've had it in my last several pick up trucks and it's very durable, I just don't know how well it would stick to wood. There is a certain amount of moisture in wood that may not allow the bed liner products to bond very well. I think this stuff is best applied by spraying rather than brush or roller. Make some calls and get more info about applying it to wood.