Full-Body Bedliner Coatings for Jeeps, Work Trucks, Trailers and UTVs

The same polyurea that protects a truck bed can protect the whole vehicle. Full-body and partial "bedliner paint jobs" have gone from niche off-road builds to a common request at coating shops: Jeeps that see rock trails, work trucks that live on gravel, trailers that get loaded by skid steer, and UTVs that get pressure-washed after every ride. This guide covers what gets coated on each vehicle type, how the process differs from a bed job, what thickness and finish to expect, and the trade-offs to think through before you commit.

What "full-body" really means

"Full-body" covers a range of jobs. At one end are accent packages: rocker panels, lower doors, bumpers and fender flares. At the other is a complete exterior, with every painted panel coated. In between are interior jobs like Jeep tubs and floorboards, and undercarriage protection. ArmorThane lists complete body coatings, floorboards and undercarriage coatings, fenders, bumpers, roll bars and trim among the off-road applications for its polyurea.

The reasons people choose it fall into three groups. The first is protection: rock rash, gravel chips, brush scratches ("trail pinstriping") and dents in thin sheet metal. The second is rust prevention, especially on rockers and lower panels in salt states. The third is appearance, the rugged, textured look that hides wear instead of showing every scratch.

What gets coated, by vehicle type

How a full-body job differs from a bed job

Spraying is the same. Everything around it is bigger. A bed is a single open box. A vehicle body has door gaps, glass, rubber seals, badges, lights, sensors, handles and wiring, and every one of them has to be removed or masked. Expect the vehicle to be at the shop longer than a same-day bed job. Ask for a realistic timeline when you get your quote.

1. Disassembly. Badges, trim, handles, lights, mirrors, flares and sometimes bumpers come off. Jeeps often have doors and tops removed. The more that comes off, the cleaner the edges.
2. Surface prep. Painted panels are washed, degreased and thoroughly scuffed. Rust is ground back to bare metal and treated. Dents are repaired first, since the coating will follow every ripple.
3. Masking. Glass, seals, door jambs (unless they're being coated), sensors, cameras and anything mechanical are masked. Panel gaps get special attention so doors, hoods and tailgates still close properly.
4. Priming. Bare metal, repaired areas and some plastics get the primer or adhesion promoter specified for the coating system.
5. Base coat and texture. The polyurea is built to the target thickness, usually with extra material on rockers and lower panels.
6. UV-stable finish. An aliphatic top coat or full aliphatic system gives color stability on sun-exposed panels.
7. Reassembly and inspection. Parts go back on and panel fit is checked. Doors, hood and tailgate should open and close without binding.

Thickness and weight on body panels

Bed floors are commonly built to 125 mils (1/8 inch) or more. Body panels usually get less. A thinner build on doors and fenders keeps weight reasonable, reduces the chance of panel-fit problems at tight gaps, and gives a cleaner look. High-impact zones like rocker panels, lower doors and bumpers may get as much as a bed floor. Your applicator will set zone-by-zone thickness for the product and the use.

Weight is a reasonable question for off-roaders. Here's a rough worked example. One gallon of 100% solids coating covers a theoretical 1,604 square feet at 1 mil. Coating 120 square feet of exterior panels at 60 mils takes about 120 × 60 ÷ 1,604 ≈ 4.5 gallons before waste. Polyurea density varies by product, but if the material weighs in the neighborhood of 8–9 pounds per gallon, that layer adds roughly 35–40 pounds. That's noticeable on paper, but small compared with steel bumpers or a winch. Check your product's data sheet for actual density.

UV protection is not optional on the exterior

Inside a truck bed, some fading on a black aromatic liner is a cosmetic quirk. On body panels at eye level, it's the whole look. Aromatic polyurea can chalk and shift color in sustained sun, while aliphatic coatings are UV-stable. ArmorThane notes that aliphatic polyureas can provide exceptional UV resistance, and that results depend on the specific formulation. For any exterior job, ask what your applicator uses for UV stability and how they apply it. Our guide to textures, colors and UV top coats explains the chemistry in more detail.

Trailers: decks, fenders and ramps

Trailers are some of the most practical full-coverage jobs. A coated steel deck resists the gouging and corrosion that come with skid steers, mowers and pallets. Coated fenders shrug off thrown gravel. Ramps with an aggressive texture give better footing when wet. Wood decks can be coated, but wood moves with moisture and temperature, so ask your applicator about prep, sealing and how the coating handles plank joints. Aluminum trailers need surface prep and primers suited to aluminum, because the metal's oxide layer resists adhesion.

UTVs and side-by-sides

UTV cargo boxes and floorboards take constant abuse from tools, mud and boots, and many steel accessories like bumpers and racks coat well. The complication is plastic. Many UTV body panels are molded thermoplastics, and some plastic families are hard for coatings to stick to. Ask your applicator what plastic your panels are made of, how they prep it (adhesion promoters, abrading, sometimes flame treatment), and what they'll guarantee. A shop that hesitates to coat a particular plastic panel is being honest, not difficult.

Pros and cons of a full-body coating

What full-body coatings cost

Full-body jobs are quoted per vehicle, not by a menu price, because labor dominates. Disassembly, dent and rust repair, masking, and the amount of surface all swing the number. ArmorThane's own guidance says a bedliner-style coating job can run from a few hundred dollars to several thousand, depending on vehicle size, product type and prep. Accent packages sit toward the low end. A complete, color-matched exterior with a UV-stable finish sits toward the high end. For bed-only pricing, see our 2026 spray-on bedliner cost guide.

Before you commit: a checklist

For more on vetting a shop, use our guide to choosing an authorized ArmorThane applicator. Our sister site BedlinerCoatings.com also covers coating projects beyond the truck bed.