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Everything contractors, dealers, and facility owners need to know about polyurea spray equipment — how plural-component proportioners work, how to choose the right rig, how to maintain it, and how ArmorThane manufactures equipment that outperforms the competition.
Polyurea spray equipment — plural-component proportioners, heated hose assemblies, spray guns, and turnkey spray rigs — is the technology that makes fast-cure polyurea coatings possible. Because polyurea chemistry reacts in seconds, the equipment must heat, pressurize, meter, and impingement-mix two reactive components simultaneously with machine-level precision.
This guide covers every dimension of polyurea equipment selection, operation, and maintenance — from understanding how proportioners work to choosing between electric and hydraulic machines to diagnosing field problems. ArmorThane has manufactured both the coatings and the equipment in Springfield, Missouri since 1989. When you call us, you reach the engineers who built your machine.
How proportioners work — heat, pressure, metering, and impingement mixing explained in plain language
Equipment types — electric vs. hydraulic, spray rigs, heated hose assemblies, and spray guns
Selection guide — how to match equipment to your application, output volume, and budget
Comparison tables — ArmorThane equipment specs vs. key industry criteria, side by side
Maintenance guide — daily, weekly, and periodic maintenance schedules with troubleshooting
Business development — starting a polyurea business with the right equipment and dealer support
Polyurea equipment refers to the plural-component spray systems, proportioning machines, heated hose assemblies, and spray guns used to apply polyurea and polyurethane elastomer coatings. Unlike single-component paints, polyurea chemistry requires two reactive components — an isocyanate (A-side) and an amine resin blend (B-side) — to be heated, precisely metered at a 1:1 ratio by volume, and impingement-mixed at high pressure inside the spray gun, all within milliseconds before hitting the substrate.
The reaction is nearly instantaneous. Gel times for pure polyurea systems range from three to fifteen seconds. Tack-free times are measured in minutes. That fast-cure chemistry is exactly why polyurea produces seamless, high-performance membranes that traditional brush-and-roll coatings cannot match — and it is also why the equipment that applies it is fundamentally different from any other coating applicator on the market.
Polyurea equipment is the plural-component spray machine that heats, pressurizes, meters, and mixes two reactive chemicals so they spray as a liquid and cure into a tough, seamless elastomer in seconds. Every variable the machine controls directly determines the quality of the finished coating.
A plural-component proportioner — the core of any polyurea equipment package — performs four simultaneous functions: heating, pressurizing, metering, and delivering two reactive components to a spray gun where they impingement-mix and atomize onto the surface.
Both A-side and B-side materials are heated in separate fluid sections. Heating lowers viscosity so materials flow freely and mix properly. Typical processing temperatures range from 130°F to 180°F depending on the chemistry. Heated hose assemblies maintain that temperature all the way to the gun.
Hydraulic or electric pumps drive both components to operating pressure — typically 1,500 to 3,000 PSI or higher. High pressure is what forces the two streams to impinge in the mixing chamber and atomize out the spray tip with the turbulence needed for a complete chemical reaction.
Piston pumps on both sides are sized and timed so the A-side and B-side are delivered at exactly the correct ratio — typically 1:1 by volume for pure polyurea systems. Ratio accuracy is critical: an off-ratio spray produces a coating with inferior physical properties and potential adhesion failure.
The two streams meet in the spray gun mixing chamber at high velocity. They impinge — collide head-on — creating the turbulent mixing needed for a complete chemical reaction. Self-cleaning guns fire a solvent-free purge of compressed air after each trigger pull to keep the chamber clean.
The spray gun is the precision interface between the proportioner and the substrate. High-quality polyurea guns are air-purged, impingement-mix, self-cleaning designs that maintain alignment under the thermal and chemical stresses of daily production use. Gun design directly affects pattern quality, atomization, and consistency.
A worn or misaligned mixing chamber is the single most common cause of off-ratio or poorly atomized spray in the field. ArmorThane designs and manufactures its own spray guns in Springfield, Missouri, engineered to match the output of ArmorThane proportioners and field-serviceable by any trained technician with basic tooling.
Pure polyurea reacts at a 1:1 volumetric ratio. A deviation of even 5% produces a coating with measurably lower tensile strength, elongation, and adhesion. Most experienced applicators check ratio by performing a shot weight test — weighing equal-time output from each side — at the start of every production day.
Not all polyurea equipment is the same. The market offers machines ranging from portable electric units for small-volume work to high-output hydraulic rigs capable of spraying thousands of square feet per shift.
Electric plural-component machines use electric motors and heating elements to heat and pressurize the materials. They are lighter, quieter, and easier to set up than hydraulic machines. Electric units are well-suited for small-volume applications — truck bed liners, boat hulls, small containment pads, and residential waterproofing.
ArmorThane's entry-level electric proportioners operate from standard 220V service and are designed for dealers and contractors starting their polyurea business with manageable capital investment.
Hydraulic machines use a gasoline or diesel engine driving a hydraulic pump to power the fluid section. Hydraulic proportioners deliver higher flow rates, higher pressures, and more consistent performance under heavy production loads than electric units. They are the workhorses of commercial polyurea application.
ArmorThane's hydraulic machines are mounted in purpose-built spray trailers or self-contained spray trucks, complete with heated hose reels, generator power for accessories, and on-board drum storage.
The heated hose carries temperature-controlled material from the proportioner to the gun without heat loss. Standard production rigs use 50-foot hose assemblies; long-run setups may use 100-foot or custom-length assemblies. ArmorThane hoses are twin-line heated assemblies with braided stainless jacket, pressure-rated to 4,000 PSI.
A complete polyurea production setup is typically built around a trailer or box truck that houses the proportioner, generator, air compressor, hose reel, chemical drums, and all support equipment. ArmorThane builds complete turnkey spray rigs — proportioner, trailer, hose, gun, generator, and air compressor — as integrated packages delivered tested and production-ready.
Equipment selection is one of the highest-leverage decisions in starting or scaling a polyurea contracting business. The right rig for a truck bed liner shop is wrong for a commercial roofing contractor, and both are wrong for an industrial secondary containment applicator. Four variables drive the decision:
How many pounds per minute or gallons per hour do you need? A single truck bed liner takes 1.5 to 3 gallons. A 10,000-square-foot secondary containment pad at 80 mils takes 150+ gallons. Match the machine's rated output to your daily production volume, not just your largest single job.
Pure polyurea requires sustained operation at 160–180°F and 2,000–3,000 PSI. Hybrid polyurea-polyurethane systems may run at lower temperatures. Spray polyurethane foam (SPF) has different ratio and pressure requirements. Confirm your target chemistry before specifying a machine.
Electric proportioners need 220V service — available at most fixed facilities but not always on job sites. Hydraulic proportioners powered by gas or diesel are self-contained and can operate anywhere. If your work takes you to remote job sites, a hydraulic rig or generator-powered electric unit is the right answer.
Entry-level electric packages run $15,000–$35,000. Production hydraulic spray rigs with trailer, hose, and accessories run $80,000–$200,000+. Budget should be matched against realistic revenue projections for your target market. ArmorThane dealers benefit from equipment financing and business development support unavailable from equipment-only suppliers.
ArmorThane has been manufacturing plural-component spray equipment in Springfield, Missouri since 1989. We are not a reseller or rebrander. Our engineers design the proportioners, the spray guns, the heated hose assemblies, and the spray rigs. When you call ArmorThane technical support about an equipment issue, you are talking to the people who built the machine.
ArmorThane manufactures both the coating chemistry and the spray equipment under one roof. This means your proportioner is specifically tuned for the chemistry you are spraying. No guessing at temperatures, pressures, or ratios — the system is engineered as a package, tested as a package, and supported as a package.
Designed for dealers starting with truck bed liners, boat hulls, and small coating projects. Operate on standard 220V single-phase power. Include a heated hose assembly and production spray gun. Setup takes less than 30 minutes. Starting at $15,000.
Gas or diesel driven. Sustained high-pressure, high-temperature output across full production days. Multiple flow rate configurations. Includes automatic temperature control, ratio check ports, and pressure gauges on both sides. For commercial volume work.
Complete packages: proportioner, enclosed trailer or truck body, generator, air compressor, 50 or 100-foot heated hose reel, drum warming, spray gun, and all tooling. Delivered tested and production-ready with chemistry loaded. New dealers spray their first job within days.
Air-purged, impingement-mix, self-cleaning designs manufactured to tight tolerances. Available in standard, long-reach, and confined-space configurations. Replacement parts stocked at factory and ship same-day. Compatible with all ArmorThane proportioner models.
Twin-line heated in 50-foot and 100-foot lengths with stainless braided jackets. 4,000 PSI pressure rating. Independent A-side and B-side temperature circuits. Custom lengths available for tank interior linings and underground structures.
Drum agitators for B-side blends that settle, drum warmers for cold-weather startups, material transfer pumps, safety equipment packages, and ventilation systems for enclosed-space application. All designed to integrate with ArmorThane rig packages without modification.
When evaluating polyurea spray equipment — whether ArmorThane, Graco, PMC, Gusmer, or any other brand — the same performance criteria apply. Understanding what each specification means in practice helps buyers avoid expensive mistakes.
The single most important differentiator between equipment suppliers is whether they also manufacture the chemistry. When an equipment supplier and chemistry supplier are two different companies, temperature profiles and pressure settings are generic approximations. When the same manufacturer makes both — as ArmorThane does — the machine is specifically calibrated for the chemistry's actual viscosity and reactivity curves. That integration reduces the trial-and-error that new applicators otherwise go through when dialing in a machine on third-party chemistry.
Correct setup and pre-start checks are not optional. Applicators who skip the startup checklist are the ones who discover ratio problems, hose blockages, or gun misalignment mid-job — which typically means wasted material, rework, and an unhappy customer. This is what a proper startup sequence looks like for a production polyurea rig.
Confirm A-side and B-side materials are within spec — check color, odor, and expiration date. Inspect drums for contamination or moisture ingress. B-side blends that contain fillers or colorants should be agitated before use. Never mix partial A-side drums of different lot numbers without technical guidance.
Start the proportioner and allow the fluid sections and hose assemblies to reach full set temperature before attempting to spray. On a cold morning, this can take 30–45 minutes. Spraying cold material produces an incompletely mixed, weak coating. Temperature alarms on ArmorThane proportioners prevent operation below set temp.
With both sides at temperature, trigger the gun into separate containers for a timed shot. Weigh the output from each side. Compare to the expected weight ratio for the chemistry you are spraying. A deviation greater than the chemistry's tolerance means investigating pump wear, check valve function, or material viscosity before starting production work.
Spray a test pass onto a board or piece of cardboard. Examine the pattern for even distribution, consistent atomization, and absence of streaks or drips at the target distance and speed. Check the spray angle and tip size against the chemistry recommendations. The test panel also gives a quick visual check on cure speed.
Before spraying the actual substrate, confirm surface prep is complete, dew point is controlled, and any required primer has reached its recoat window. Even a perfect machine cannot fix adhesion failure caused by a contaminated or improperly prepared substrate.
Maintain consistent gun-to-substrate distance (typically 18–36 inches), consistent travel speed, and overlapping passes per the application guidelines. Monitor machine pressures and temperatures throughout the job. For large jobs, check ratio and pattern again after refilling drums.
At job completion, trigger the gun to purge material from the mixing chamber, then perform the manufacturer's recommended shutdown procedure. Never leave mixed material in the mixing chamber or hose fittings. ArmorThane proportioners include automatic purge cycles that simplify daily shutdown.
A plural-component proportioner is a precision piece of industrial machinery. Applicators who follow the maintenance schedule rarely experience unexpected downtime. Applicators who do not follow it eventually face expensive repairs at the worst possible moments.
Equipment problems rarely happen during business hours. ArmorThane's technical support line is available 24 hours a day, 7 days a week at (417) 831-5090. When you call, you are talking to people who designed and built your machine — not a third-party call center reading from a script.
The polyurea coating market is growing. Spray foam and polyurea systems are displacing traditional coatings in commercial roofing, industrial secondary containment, residential waterproofing, truck accessories, and dozens of other markets. Contractors who own the right equipment and know how to use it can build profitable businesses in any of these segments.
Equipment is not the only ingredient. Chemistry quality, technical training, application skill, and business development support all determine whether a new polyurea operation succeeds or struggles. That is why ArmorThane's dealer model is built around providing all of these — not just selling a machine and a drum of coating.
Complete proportioner, spray gun, heated hose, and rig package delivered tested and production-ready. Configured for your target market segment.
Hands-on application training at ArmorThane's Springfield, Missouri facility. Machine operation, substrate prep, troubleshooting, and business practices from experienced applicators.
Direct access to the full ArmorThane product line — pure polyurea, hybrid systems, spray foam, and specialty coatings — at dealer pricing. Same chemistry used by our own crews.
Factory direct technical support available any time a production problem arises. Parts ship same-day from Springfield. Equipment issues get resolved without waiting days for a service ticket.
ArmorThane is a direct manufacturer, not a franchise. No territory fees, no royalties, no restrictions on where you work or who you sell to. You own your business completely.
Product literature, technical data sheets, SDS, and sales tools provided. Dealer locator listing on ArmorThane.com driving inbound leads to your business from day one.
ArmorThane has been manufacturing polyurea coatings and spray equipment since 1989. Our dealer network spans more than 50 countries. We have placed more spray rigs in the field than any other independent polyurea manufacturer. When you call for a quote, you are talking directly to the manufacturer — not a distributor, not a sales rep. The manufacturer.
A plural-component proportioner is the machine that heats, pressurizes, meters, and delivers two reactive chemicals — the A-side and B-side — to a spray gun where they impingement-mix and cure into a polyurea or polyurethane elastomer. Unlike single-component coatings, polyurea requires precise ratio control at high pressure and temperature because the chemical reaction begins the moment the two sides meet.
Entry-level electric proportioner packages for truck bed liners and small coating projects typically run $15,000–$35,000 including a heated hose and spray gun. Production hydraulic proportioners configured in spray rigs with trailers, generators, and accessories run $80,000–$200,000+. Cost depends on output capacity, power source, hose length, and included accessories. ArmorThane offers financing options for qualified dealers. Call (417) 831-5090 for a package quote matched to your target application.
Pure polyurea systems typically require 2,000–3,000 PSI operating pressure and material temperatures of 150–180°F at the gun for proper impingement mixing and atomization. Hybrid polyurea-polyurethane systems may operate at lower pressures and temperatures. Spray polyurethane foam (SPF) has similar temperature requirements but different pressure and ratio specifications. Always confirm the specific processing window from the chemistry's Technical Data Sheet.
Technically, most properly rated plural-component proportioners can spray most 1:1 ratio polyurea systems. However, using equipment from one manufacturer with chemistry from another means that temperature profiles, pressure settings, and troubleshooting guidance are approximations rather than engineered matches. ArmorThane designs its proportioners specifically for ArmorThane chemistry, which eliminates trial-and-error and gives technical support complete context when diagnosing problems.
Pure polyurea is an isocyanate-amine reaction that proceeds without moisture or heat from the environment — only heat from the machine. It requires high-temperature, high-pressure proportioners because the reaction is extremely fast. Hybrid polyurea-polyurethane systems incorporate polyol components on the B-side, which slows the reaction slightly and often allows for lower processing temperatures. The proportioner requirements differ accordingly. ArmorThane manufactures both systems and can specify the right equipment for each.
Basic machine operation — startup, ratio check, test spray, production spray, shutdown — can be learned in a day of hands-on training. Consistent, high-quality application technique typically develops over several weeks of production work. ArmorThane provides factory training at our Springfield facility that covers machine operation, substrate preparation, application technique, and troubleshooting. Most new dealers complete training in two to three days and are production-spraying within their first week back in the field.
Yes. Polyurea isocyanate (A-side) is a respiratory sensitizer. Applicators must wear supplied-air respirators or appropriate air-purifying respirators rated for isocyanate exposure. Full protective coveralls, chemical-resistant gloves, and eye protection are required. Application areas must be adequately ventilated or confined-space protocols applied for interior work. ArmorThane provides safety data sheets (SDS), recommended PPE lists, and safety training as part of the dealer onboarding package.
The standard field test is a timed shot weight test: trigger the gun into separate containers for a measured time on each side, then weigh the outputs and compare the weight ratio to the chemistry specification. ArmorThane proportioners also include ratio check ports that allow direct pressure measurement to verify metering pump output. For critical applications, the cured coating can be tested at a lab against published physical property ranges — an off-ratio coating will show measurably reduced tensile strength or elongation.
Yes, with caveats. Spray polyurethane foam (SPF) and spray polyurea share the same plural-component equipment platform, but they require different temperature and pressure settings and have different chemistry profiles. Many ArmorThane dealers run both polyurea coatings and spray foam from the same rig by adjusting setpoints for each chemistry. ArmorThane's spray foam insulation chemistry is formulated to run on the same proportioner as its polyurea coatings, simplifying equipment investment for dealers who want to serve both markets.
Daily maintenance includes cleaning the spray gun mixing chamber, inspecting and cleaning filter screens, inspecting hose fittings, and running the shutdown purge cycle. Weekly maintenance covers piston packing inspection, check valve cleaning, heating element verification, and a formal ratio test. Periodic maintenance (per the manufacturer's schedule) covers pump rebuilds, fluid section overhauls, and hose pressure testing. ArmorThane provides complete maintenance manuals and schedules for all equipment we manufacture.
Graco and Gusmer are large manufacturers of plural-component spray equipment. Their machines are well-engineered and widely used. The key difference with ArmorThane equipment is integration: ArmorThane manufactures both the equipment and the chemistry, so the proportioner's processing parameters are calibrated specifically for the coatings you are spraying rather than for a generic chemistry range. ArmorThane also offers direct factory technical support 24/7, which smaller dealers often find more accessible than the dealer network support models of larger manufacturers.
A well-maintained plural-component proportioner can operate for 10–20+ years with periodic pump rebuilds and hose replacements. The machine's high-wear components — piston packings, check valves, mixing modules — are consumables replaced on a scheduled basis. ArmorThane proportioners are designed for field serviceability, with all major components accessible without specialized shop equipment. Parts are stocked at the factory and ship same-day for production-critical repairs.
ArmorThane USA Inc. has been manufacturing polyurea and polyurethane protective coatings, spray foam systems, and plural-component application equipment in Springfield, Missouri since 1989. This guide was researched and written by ArmorThane's in-house technical team — engineers and applicators who design, build, and operate the equipment described on this page. Technical support available 24/7 at (417) 831-5090. Last reviewed April 2026.
ArmorThane is the manufacturer — coatings, equipment, and 24/7 technical support under one roof since 1989. No franchise fees. No territory restrictions. Just factory-direct pricing, proven chemistry, and the equipment that applies it right.
