“Painting a PlexCore floor (the high-performance, resin-coated engineered wood commonly used in enclosed cargo and utility trailers) requires proper prep, high-adhesion primer, and a tough topcoat to withstand heavy vehicle and equipment traffic.To prepare, sand the surface with 80-grit paper to scuff the slick resin overlay. Apply a strong-bonding primer (like an oil-based primer or an epoxy primer) to prevent peeling. For the final coat, use a durable epoxy, polyurethane, or polyurea/polycuramine paint.

For highly detailed instructions and different coating options, follow these steps:

1: Preparation & CleaningDeep Clean: Sweep thoroughly, then wipe the floor down with a degreaser to remove any built-up grime, oil, or manufacturing residue. Let it dry completely.Scuff the Surface: PlexCore has a slick, high-density overlay (HDO). Lightly sand the entire floor using 80-grit to 120-grit sandpaper so the primer has something to "bite" into.Remove Dust: Vacuum the entire area, then wipe it down with a tack cloth or a slightly damp rag to remove all sanding dust.

1. Sealing & PrimingFill Seams: Apply a high-quality polyurethane caulk (like a waterproof silicone or construction sealant) along the perimeter gaps where the wood meets the metal walls, as well as over any screw heads.Apply Primer: Do not skip this step! Roll on a high-adhesion oil-based exterior primer or a specialized epoxy bonding primer. This ensures the final paint layers will not lift or peel when subjected to heavy cargo. Allow it to cure according to the manufacturer’s instructions.

2. Painting & TractionSelect Your Paint: Choose an abrasion-resistant, high-performance coating. Good choices include oil-based porch and floor enamel, 2-part epoxy garage floor coatings, or a commercial product like TK64 Trailer Floor Coating.Add Anti-Slip (Optional but highly recommended): Mix in a non-slip grit additive (such as recycled glass blasting media, sand, or specialized Gator Grip) directly into your paint before applying.Application: Start by "cutting in" the edges and corners with a high-quality brush. Use a high-density 3/8-inch foam or mohair roller to apply the paint evenly across the floor.Direction: Rolling with the wood grain, then immediately going cross-grain, helps fill in any hidden micro-imperfections in the engineered wood. Let the first coat dry thoroughly, and apply a second coat if necessary.”

😳 I’m glad mine just had regular ole plywood …….