By Oak Ridge Foam & Coating Systems
Flak Jacket Spray-On
Bed Liners — Polyurea Tough
100% polyurea spray-applied truck bed protection. Harder, thicker, and more durable than any roll-on kit or drop-in liner. Applied by trained professionals with plural-component spray equipment. Available in black only — the proven finish for work trucks.
About Flak Jacket
The Professional-Grade Spray-On Bed Liner That Actually Holds Up
Flak Jacket is Oak Ridge Foam & Coating Systems' branded spray-applied polyurea truck bed liner system — engineered for professional contractors and the serious truck owners who demand real protection, not a painted-on coating that chips in a season.
Unlike roll-on kits or factory drop-in liners, Flak Jacket is sprayed on using high-pressure, high-temperature plural-component spray equipment. The two-component polyurea chemistry reacts on contact, bonding directly to the substrate and curing in seconds. What you get is a seamless, fully adhered membrane with no seams, no edges, and no place for water to sneak underneath and start rusting your bed.
Flak Jacket uses a true 100% polyurea formulation — not a polyurethane-polyurea hybrid. That distinction matters: pure polyurea is harder, more chemically resistant, faster-curing, and more dimensionally stable than hybrid systems, which can yellow, soften in heat, and lose adhesion over time.
Performance Features
Built Tough. Stays Tough. Won't Let You Down.
Flak Jacket's polyurea chemistry delivers a combination of performance properties that no roll-on liner or factory plastic tray can match.
Handles gravel, tools, firewood, equipment, and everything else you throw in a work truck bed — without scratching through to bare metal.
The flexible polyurea membrane absorbs impact energy rather than cracking. Drop a cinderblock in the bed — Flak Jacket flexes, not fractures.
Formulated with UV-stable pigment packages that resist color fade and chalking under direct sun exposure — season after season, year after year.
Resistant to fuel, oil, fertilizer, salt brine, and common agricultural chemicals. Ideal for farm trucks, fleet vehicles, and work rigs exposed to harsh cargo.
Seamless, fully-adhered application leaves no gaps or seams where water can infiltrate. Eliminates the hidden rust trap that plagued old rubber mat-style liners.
Touch-dry in seconds. Most Flak Jacket applications are drive-away-ready within 1–4 hours. No overnight wait. Customers are back on the road fast.
Unlike latex-based spray liners that crack in cold weather or peel in UV, polyurea remains flexible from -40°F to +200°F and maintains adhesion for the life of the vehicle.
Flak Jacket 1 is offered in black only — a UV-stable pigment package that hides scuffs, resists fade and chalking, and looks right on every truck. Need a color liner? Ask about our ORBL polyurea bed liner system.
The Finish
One Color. Black. Built for Work.
Flak Jacket 1 is available in black only — a UV-stable pigment package that resists fading and chalking under prolonged sun exposure, hides scuffs and haul marks, and looks right on every truck, every year.
Finish shown is representative of cured material; texture depth varies with applicator settings. Need a color liner for fleet or dealer work? See the ORBL two-component polyurea bed liner system, available in 8 standard colors.
Applications
More Than Just Pickup Trucks — Flak Jacket Goes Anywhere
Flak Jacket polyurea is used wherever abrasion, impact, and chemical resistance matter. If it hauls, tows, or gets loaded, Flak Jacket protects it.
The original application. Half-ton to heavy-duty — Flak Jacket protects beds from work and recreational use alike. Perfect for F-150s, Silverados, Rams, and everything in between.
Protect your entire fleet with a consistent, durable black finish across municipal, utility, telecom, and construction vehicles. Reduces long-term maintenance costs and keeps the whole fleet looking uniform.
Utility trailers, enclosed cargo trailers, and flatbeds all benefit from a Flak Jacket liner. Eliminates wood deck rot, rust-through, and splinter hazards on trailer decks.
Dump beds and cargo boxes on ATVs, UTVs, and side-by-sides take a beating. A sprayed-on Flak Jacket liner in durable black protects them from rocks, tools, and firewood season after season.
Heavy aggregate, asphalt, and demolition debris are brutal on dump truck beds. Flak Jacket lining dramatically extends bed life and reduces costly steel repairs. Widely used by excavation and paving contractors.
Line the floors, wheel wells, and cargo areas of cargo vans and enclosed vehicles. Reduces road noise, protects against sliding cargo damage, and outlasts rubber floor mats that shift and retain moisture.
Fire apparatus, ambulances, military and law enforcement vehicles, and off-road builds all benefit from the extreme durability and customizable finish that Flak Jacket delivers.
Farm trucks, grain trailers, chemical spreader beds, and livestock transport vehicles. Flak Jacket withstands fertilizers, manure, salt, and the daily rigors of farm life better than any paint system.
Application Process
Professional Spray Application — Not a DIY Job
Flak Jacket is a contractor-applied system. It requires plural-component spray equipment to properly meter, heat, and atomize the two-component polyurea chemistry at high pressure. This is what separates a true spray-on bed liner from the roll-on kits sold at auto parts stores — and it's why the result looks and performs completely differently.
A typical Flak Jacket bed liner job takes 2–4 hours from vehicle drop-off to customer pickup — including prep time. Most customers can drive away the same day.
The truck bed is thoroughly cleaned, degreased, and sanded. All rust, scale, factory coatings, or contamination that could prevent adhesion are removed. Proper surface prep is the single biggest factor in a long-lasting liner — shortcuts here are what cause premature delamination.
All areas not receiving liner — cab rear windows, tailgate hardware, tie-down anchors, and adjacent body panels — are carefully masked. Clean lines at edges and rail tops define a professional installation.
A moisture-cure polyurethane primer is applied to promote maximum adhesion between the metal substrate and the polyurea topcoat. Primer flash time varies by ambient humidity and temperature — the contractor monitors this before spraying.
Using a high-pressure proportioning machine (like a Graco Reactor or PMC proportioner), the two-component Flak Jacket polyurea is heated, metered at a 1:1 ratio, and sprayed through a mix gun. The reaction happens at the tip — the material hits the surface as a liquid and gels in seconds. Multiple passes build the coating to the target 2–3 mm thickness in minutes.
The cured liner is inspected for consistent texture, coverage, and edge quality. Masking tape is removed, and the truck is ready for customer delivery — typically within 1–4 hours of job start. Full hardness develops over 24 hours, though light use is generally fine immediately.
Flak Jacket polyurea requires plural-component spray equipment operating at 2,000–3,500 PSI and 140–160°F material temperature to properly mix and atomize. Attempting to apply it without the right equipment results in poor adhesion, wrong ratios, and a failed coating. Professional application is required — and it's what makes the result so durable.
Contact Oak Ridge to find a certified Flak Jacket installer in your area, or to inquire about becoming an applicator yourself.
Contact Oak RidgeTechnical Specifications
Flak Jacket Polyurea — Technical Data
True 100% polyurea chemistry — not a polyurethane-polyurea hybrid. The specifications below reflect our standard Flak Jacket bed liner formulation. Contact ORFC for full TDS and application guide.
The Oak Ridge Advantage
We Supply the Product AND the Equipment to Apply It
Most polyurea chemical suppliers just sell you the material and leave you to figure out the equipment. Oak Ridge Foam & Coating Systems is different: we supply both the Flak Jacket polyurea system and the plural-component spray equipment needed to apply it — from the same company, with the same support team behind it.
This matters because proportioning machines, heated hose sets, and spray guns need to be matched to the chemistry. When you buy your Flak Jacket material and your Graco Reactor or PMC proportioner from Oak Ridge, we know your entire setup. Our technical team can help you dial in temperatures, pressures, and hose lengths — and troubleshoot problems that a materials-only supplier simply can't help with.
Full drum, half-drum, and pail quantities. Fast shipping from our Green Lake, WI facility to contractors nationwide.
Graco Reactor and PMC proportioners, heated hose, spray guns, and all accessories — sold and supported by our equipment team.
Hands-on training for new contractors at our Green Lake facility. Learn surface prep, equipment operation, spray technique, and quality control — the right way, from day one.
Ongoing technical phone support, application troubleshooting, and business development guidance from a team that's been in the spray coatings industry since 1984.
Spray-On vs. Roll-On vs. Drop-In
Why Spray-On Polyurea Wins Every Time
Not all "bed liners" are created equal. Here's how Flak Jacket polyurea compares to the alternatives truck owners commonly consider.
| Feature | Flak Jacket Polyurea Spray-Applied |
Roll-On Liner DIY Kit |
Drop-In Liner Plastic Mat |
|---|---|---|---|
| Chemistry | 100% Polyurea | Latex / Acrylic blend | Polyethylene plastic |
| Adhesion to Metal | Chemically Bonded | Paint-Film Bond | None (sits loose) |
| Seams / Gaps | Seamless | Minimal | Multiple seams & gaps |
| Rust Prevention | Excellent | Moderate | Traps moisture |
| Impact Resistance | Exceptional | Low–Moderate | Moderate (cracks cold) |
| Cold Weather | -40°F rated | Cracks in hard freeze | Brittle, lifts |
| Finish | Black, UV-stable texture | Black (fades/chalks) | Black or gray plastic |
| Application | Professional | DIY | DIY |
| Longevity | Lifetime of vehicle | 3–7 years | Fades, warps in 3–5 yrs |
Frequently Asked Questions
Common Questions About Flak Jacket Bed Liners
Flak Jacket is formulated as a true 100% polyurea — not a polyurethane-polyurea hybrid. Pure polyurea cures faster, achieves higher hardness, is more chemically resistant, and maintains flexibility over a wider temperature range than hybrid systems. It also comes from Oak Ridge Foam & Coating Systems, a professional coatings supplier with 40+ years of experience — not a franchise bed liner brand with inconsistent contractor quality.
Most Flak Jacket installations take 2–4 hours from vehicle arrival to customer pickup, depending on bed size, surface condition, and required prep work. The polyurea itself cures in seconds — the majority of the time is surface preparation and masking, which is what separates a quality installation from a fast one. Customers generally drive away the same day.
The standard application is 2–3 mm (approximately 80–120 mils). This can be increased for heavy-duty applications like dump truck beds or equipment trailers where extra abrasion resistance is required. Your applicator can customize thickness based on your use case.
No. Flak Jacket polyurea is rated for continuous service from -40°F to +200°F. The elastomeric chemistry remains flexible in sub-zero temperatures — unlike latex-based roll-on coatings that become brittle and crack in hard freezes, and unlike plastic drop-in liners that can shatter on impact when frozen.
No — Flak Jacket 1 is available in black only, with a UV-stable pigment package that resists fading and chalking. If your fleet or dealer program needs a color liner, ask us about the ORBL two-component polyurea bed liner system, which is offered in 8 standard colors.
Oak Ridge Foam & Coating Systems sells both the Flak Jacket polyurea material and the plural-component spray equipment (proportioners, heated hose, and spray guns) needed to apply it. We also offer hands-on applicator training at our Green Lake, WI facility. Contact us at 800-625-9577 or through our contact page to discuss startup packages for new bed liner contractors.
Contact Oak Ridge at 800-625-9577 or through our contact form and we can connect you with a certified Flak Jacket applicator in your area. We work with contractors across 48 states.
Get Started with Flak Jacket
The Spray-On Bed Liner That
Actually Holds Up.
Whether you're a truck owner looking for a certified installer, a shop wanting to add bed liner services, or a contractor looking to start a bed liner business — Oak Ridge is your source for the Flak Jacket system, equipment, and training.