Liquid Bed Liner

Gary Mitchell

Well-known Member
I'm about finished with a 4 x 10 utility trailer I'm building to use around the place and to haul lumber etc. I figured to keep the bed, (3/4 plywood), doped with some kind of sealer, then I got to wondering if there was some kind of product a fellow could get, like the stuff auto places spray in pick-up beds, that would permanently take care of the bed. Do any of you folks have any experience with this? Thanks, gm
 
I think it would be good. Use 3 medium to light coats and maybe 4 on the edges. Even CDX rated Plyeood will delaminate in direct exposure. Jim
 
The key thing is to seal the end grain. I would suggest an epoxy sealer, such as Gluvit or WEST System. They're intended for wood and will penetrate it rather than just sticking on top.
 
I have never been a fan of putting a "paint type sealer" on wood. Wood has to breath and 90% of the time those coating peel/flake off, especially if you do all 4 sides. Any kind of sealer that "soaks" in will be better.
 

My opinion from what I have seen is the same as Stroby's. I would look for a deck sealer that says expressly that it is a "penetrating" sealer.
 
I have used it. It’s tough stuff. Once it’s cured it won’t come off, the wood will come up with it first. The instructions recommend masking areas you don’t want it to be on for a good reason.
 
I still say the best sealer for trailer floors is used motor oil. That said, I've seen that bed liner stuff used on trailers and am not impressed. On the one where it was on the fenders the steel fenders were rotted almost completely away under the liner. The liner was still there tho, and once I attached that to the trailer it stayed on. Lol. I saw it on a wood floor too where the floor was rotted away under the liner. But I have no idea what shape the floor was in before it was applied. The trailer with it on the fenders was new that way.
 
Why not use exterior factory-preserved plywood? The real top-end stuff is used for wooden basements, pricey of course but you'll not live to see it rot. Google "Permanent Wood Foundations". If it were me, I'd just use regular plywood and either leave it as is or put some kind of deck stain on it, close your eyes and pick one. I mean really .... considering everything, I don't see it as being a big problem in a utility trailer.
 
I had pressure treated plywood on the floor of and old wood hauling trailer. After about 6 years, it was coming apart. Replaced it with some used synthetic porch decking someone gave me. It will be there long after I am gone.
Richard in NW SC
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Plywood, even the stuff for basements, doesn't stand up to the kind of repeated wet/dry cycles and sun in a trailer floor. Neither does pressure treated lumber. Those are for where there is little or no sun and mostly constant moisture levels.
 
Jon ...... reading his post I thought that he had decided on plywood, or at least on some kind of wood. So if no plywood or lumber, you must be saying to not use wood at all.
 
gary I use used transmission fluid (atf) I get it from my local tranny shop, apply it with a roller, put lots on. I do it on a hot sunny day and by the time I get from one end to the other where I started is already soaked in and dry. I do it every 2 years and i'm due again this year.
 
My experience with plywood is it separates over time and looses it strength. We just re floored a trailer using 2 x 8 fir and it will be treated with used hydraulic oil. I usually try to oil the wood before it goes on the trailer but this time we needed the trailer to haul a couple of old engines.
Dave
 
FWIW, put 3/4 pressure treated plywood in the back half of a manure spreader +- 15 years ago.

Gets used motor oil on it when I oil up the chains (really, pretty much oil up everything on it) when I'm done.

Stored outside, so far so good.

Fred
 

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