I've got a 7' x 14' landscaping type trailer I use to haul Quads ATV's and Kubotas on.
I HATE slippery wet slimy trailer decks.
I just had the "pleasure"

of stripping off a $500 Hot Sprayed on Pickup Truck bedline type product, which didn't bond well to the wood. Micro Steam bubbles formed from the hotness applied to a brand new trailer deck of standard 2x8 pine.
oh well, lasted ~5 years.
So now what to try again for a liner product. This MonstaLiner seems to be a cool sounding product.
Monstaliner do-it-yourself roll-on truck bed liner outperforms Herculiner Bed Liner, Duplicolor and Rustoleum Road Warrior
It's all about the bonding to wood, not metal.......
does the pelican brain trust paint their wooden trailer decks with sand in it for non-skid, or just oil stain? Or?
other roll on bed liners?