Prime cargo trailer wood floor before Rustoleum Polycuramine?

[Justintime2]

What primer would you use on the wood floor before applying it?

Rust-Oleum 317284 RockSolid Polycuramine Garage Floor Coating, 2.5 Car Kit, High Gloss Dark Gray​

I’ve got a brand new Interstate 6x12 LoadRunner enclosed cargo trailer and will be doing an epoxy coating in the floor and rear ramp. Have seen more then a few videos showing priming before doing it as the wood can soak up a fair amount of the product and be uneven without priming the wood first.

Manufacturer says no primer just snd and apply but that doesn’t prevent the problem and this stuff is too expensive to double up on.

 

[Higgy1300]

I used this in my car trailer , rolled it right over the bare wood. Took two kits.

 

[Higgy1300]

Here are some finished pictures

 

[Shea]

What primer would you use on the wood floor before applying it?

Rust-Oleum 317284 RockSolid Polycuramine Garage Floor Coating, 2.5 Car Kit, High Gloss Dark Gray​

I’ve got a brand new Interstate 6x12 LoadRunner enclosed cargo trailer and will be doing an epoxy coating in the floor and rear ramp. Have seen more then a few videos showing priming before doing it as the wood can soak up a fair amount of the product and be uneven without priming the wood first.

Manufacturer says no primer just snd and apply but that doesn’t prevent the problem and this stuff is too expensive to double up on.

The first coat of RockSolid polycuramine IS the primer coat. Polycuramine is not compatible with latex acrylic primers or 2-part epoxy primers for that matter. If you try to apply it directly over them, it will peel. The Rust-Oleum date sheets discuss this. The other option is to let a primer completely dry first, then sand it with 150 grit sandpaper before applying the polycuramine. The problem with that, though, is you won't get as good adhesion as you would if the polycuramine were applied directly to wood.

This is why I've always recommended a single-part polyurea for wood trailer flooring. The only mixing required is to add the color pigment pack to the 1 gallon can. You can then apply a primer coat of polyurea, seal the can and wait a few hours, then open the can to apply another coat. Plus, it won't turn a yellow tint if exposed to direct sunlight like epoxy and polycuramine will. It's also a thicker coating and more durable. One gallon (128 ounces) of single-part polyurea that covers 250 square feet (concrete) is approximately $35 more than a 90-ounce single-car burst pouch of RockSolid polycuramine that barely covers 200 - 250 square feet. Here is an example of a single-part polyurea by Legacy Industrial.

 

[Justintime2]

Good insight, thank you. Since my trailer is only a 6x12 plus the ramp door I’ll use the first pouch as a seal/primer and hit both. Then once that’s cured I’ll use the second pouch as the finish coat and broadcast the chips into that.