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Waterproofing a trailer floor

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44K views 27 replies 18 participants last post by  too slow  
#1 ·
Ok, its been a while since I have been on here but the colder weather around my part of the U.S got me thinking and here I am. So the challenge is to take a plywood floor in a 7x14 enclosed trailer and make it water proof. I personally have never had any luck with Thompson's water seal. So has anybody else ran across any miracle water proofing?

I plan on putting some kind of protection on the floor this year not for me though my buddy decided to buy a rev with 140 studs and it eats plywood for breakfast lol. I was hoping that there might be some used conveyor belt at one of the cement plants around my town but so far no luck. What have any of you had the best luck with for floor protection.

Thanks in advance
 
#2 ·
This question has been asked many times, but there are a few things....there is a commercial type rubber floor that you can install by gluing it down. I've had it done by a professional floor guy...the second and less expensive option is to go to a semi trailer dealer and buy a floor restoration kit. Its a clean crack filler that also seals the floor. The kits are around $300 or so each but will cover 53' of floor. Get a couple guys to go in on one and do them all at the same time. The stuff works and will actually help protect the floor from carbides/studs a little bit as well.
 
#5 ·
I've found drain oil to work great. We use it on all our flat bed hay racks and truck beds on the farm and water will bead up on the wood like a freshly waxed vehicle. Not sure how it would be in an enclosed trailer though, as the sun really helps "bake" the oil into the wood. Also might be a little slick with snow and ice, but your floor would last forever!!!

For stud protection, I've used rubber truckbed mats with good results. They are lighter than conveyor belt or horse mats and have little dimples to allow air to get under them to keep the floor from rotting. Just make sure you screw them down well.
 
#6 ·
I have thought about the Wood Life Classic. I however have never heard of drain oil what is it and where do you get it. I always just used whatever was cheapest to do hay wagons and throw a tarp over the bed in winter haha.
 
#9 ·
Not sure if you're serious or not, but drain oil is the used oil that you drain out of your car/truck/tractor engines. I put it in a 5 gallon bucket and use a plastic bristle broom to brush it on the wood. It works best when it's hot out because the oil is thinner and soaks in faster/better. You can also thin the oil with a little diesel fuel if you want it to soak in faster, but you get the smell of the diesel. We have several hay racks that are over 20 yrs old with the original beds and they sit outside uncovered all year.
 
#15 · (Edited)
redgard waterproofing membrane. then paint over it so it isn't bright red lol. obviously u don't need the fiberglass on the edges like he uses since ur not doing a shower lol. wonder how it bonds to wood, lol.
 
#16 ·
https://www.youtube.com/watch?v=x8emPz4fy9Y redgard waterproofing membrane. then paint over it so it isn't bright red lol. obviously u don't need the fiberglass on the edges like he uses since ur not doing a shower lol. wonder how it bonds to wood, lol.

I am a flooring installer and this stuff works great!!!
I have even used it to water proof planters in offices over a copper lining and it holds up great, and it will stick to wood just fine BUT if you were to just install over the wood and paint it, it will not hold up cardies and picks, if you wanted to use it on the outer edges of mats and guides, it will last almost forever (as long as it is grease/oil free)

And you dont need the fabric as it is pretty much just an anti fracture membrane where there would be movent between two surfaces.
 
#17 ·
That Redguard stuff looks neat. I went down to my local Home Depot and they had this Behr Deck Over stuff, supposed to fill cracks up to a 1/4 inch and is really thick and is supposed to save the world and be the next great thing, at least that's what they said about it. Anyone heard anything about this stuff?
 
#19 ·
Reguard isn't cheap. $50 a gallon. I use it in all of my custom showers. It looks like Pepto Bismol, has the consistency of yogurt, and smells like ass.

This is what it looks like when it is dry. The pink is where I touched it up and hasn't dried.
 

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#23 ·
Yeah I wasn't going to get into that cancer causing stuff I'm No doctor so... I'm in southern Michigan and I have 2 gravel pits and 2 cement plants in my town lol so its just a matter of time before they need some replacement belts. However if they don't replace them before winter that plan wont work so right now I'm trying to figure out a plan I could do with supplies that are always available.