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ARMORTHANE PROTECTING YOUR WORLD

PROTECTING YOUR WORLD

ARMORTHANE PROTECTING YOUR WORLD

AGRICULTURAL COATINGS

Polyurea and polyurethane agricultural coatings that add years to high-priced farm equipment, grain storage and barn concrete.

ArmorThane Technical Team · Polyurea & Polyurethane Application Specialists|9 min read|Updated August 6, 2026

Key Takeaways: Agricultural Coatings at a Glance

  • Agricultural coatings are monolithic, not sacrificial. Sprayed polyurea and polyurethane cure into a seamless membrane that bonds to steel and concrete and flexes with the substrate instead of chipping like enamel or cracking like epoxy.
  • Farm assets fail at edges, welds and fastener lines first — exactly where brush and roller films are thinnest. A sprayed 40–125 mil build seals those details in a single application.
  • Chemistry beats color. Ammonia from manure, UAN and urea fertilizer salts, silage acids, hydraulic oil and high-pressure wash-down are what actually destroy agricultural equipment and storage.
  • Downtime is the hidden cost. Polyurea sets tack-free in seconds and returns tractors, bins, trailers and barn floors to service the same day rather than losing a week to cure schedules.
  • Preparation drives service life more than product choice. An abrasive-blasted steel profile, CSP 3 concrete texture and verified moisture readings matter more than any single spec sheet number.
2,800 PSITENSILE STRENGTH
400%ELONGATION
4–8 SECTACK-FREE SET
20+ YRSSERVICE LIFE ON PREPPED STEEL

What’s Inside This Guide

  1. Why agricultural assets fail
  2. Polyurea vs. epoxy vs. enamel vs. galvanizing
  3. Where agricultural coatings belong
  4. Surface prep and application
  5. What agricultural coatings cost
  6. Coverage & budget estimator
  7. Pre-coating checklist
  8. Agricultural coatings FAQ
CUTTING EDGE OF AGRICULTURAL,

EQUIPMENT COATING TECHNOLOGY

The elements and moisture attack metal and concrete year-round, but the right agricultural coatings protect nearly any surface on the operation — and the investment behind it. ArmorThane sprays polyurea, polyurethane and foam systems onto equipment, grain storage, barn concrete and containment so those assets stop corroding, stop leaking and stay in production.

The cost of agricultural equipment is high, but it is an investment every farm needs to operate effectively. In a working agricultural context, machinery is used and abused around cattle, crops, fertilizer and wash-down, so every high-value surface deserves an agricultural protective coating rather than a thin film that chips off after one season. Whether you hire a certified applicator or run your own spray equipment, protecting farming equipment is cheaper than replacing it.

farm equipment coatings

PROTECTIVE COATINGS FOR
YOUR FARM EQUIPMENT

No matter where the farm is located, the weather will take its toll on the equipment. Agricultural machinery is merciless to the elements, including wind, rain, snow, temperature changes, filth, and sand. Chemical exposure and ugly equipment stains are additional problems. By extending the lifespan and productivity of your equipment with an agricultural protective coating, you may save money by keeping it out of the shop and working in the fields.

Agricultural coatings earn their keep in the details: sealed sheet laps on a bin, coved edges at a parlor drain, a stripe coat on every weld and bolt head, and a film thick enough to survive grain flow or a loader bucket. That is why ArmorThane specifies sprayed elastomers by exposure rather than by asset — the same chemistry that stops condensation corrosion on grain bins also handles ammonia and acid attack on barn and parlor concrete.

  • Dent, scratch and crack resistance ​
  • Waterproofing​
  • Chemical resistance​
  • Corrosion and rust proofing ​
  • Reduced slipping and skidding​
  • Temperature extreme endurance​
  • Ease of cleaning and maintenance​
  • Energy savings​
This is the most straightforward type, something so basic you might not even think of it as equipment. These are racks, shelves, and storage bins to store your material between receiving it and shipping it. They are often designed to utilize vertical space so the warehouse can maintain more items.
Grain silos with protective coating
Corrosion protection on agricultural machinery
Indestructible truck bed coating
water-tight coatings on pond walls
Agricultural Coatings Steel Framework

MATERIAL HANDLING

EQUIPMENT COATINGS

If there’s a lot of material altogether, you’re probably using bulk material handling equipment. This is the storing, transportation, and control of materials in loose bulk form. Examples would be silos and large cylinders that can hold stuff like grain. Examples include stackers and reclaimers, hoppers, grain elevators, bucket elevators, conveyor belts, dump trucks, screw conveyors and rotary car dumpers.

Metal truck Racks for Heavy Equipment Storage
POLYURETHANE
  • Truck Bed Liners
  • All Types of Trailers
  • Tractors
  • Brush Hogs, Ploughs,
  • Tillers and Harvesters
  • Balers and Mower Decks
View More
Industrial Roof Spray Foam
CONCRETE COATING
View More
Worker applying spray foam in attic
POLYURETHANE FOAM
  • Home Insulation
  • Barn Insulation
  • Office Insulation
View More
The Failure Pattern

Why Agricultural Assets Fail — and What Agricultural Coatings Actually Do

Nothing on a farm gets a gentle service life. A grain trailer loads abrasive product at 40 mph of airflow, then sits in UV all July. A dairy floor sees hoof traffic, lactic acid and pressure wash-down twice a day. A fertilizer tender holds ammonium nitrate and UAN solutions that pull moisture out of the air and hold it against bare steel. The assets are different, but the failure sequence is almost always identical: the protective film breaks somewhere thin, moisture reaches the substrate, and corrosion spreads underneath the coating faster than it spreads across the surface.

That is the real job of agricultural coatings. Not color, not gloss — continuity. A single unbroken membrane with no pinholes, no seams and no thin spots at the edges. Sprayed polyurea and polyurethane elastomers do this in one application because they are applied at 40 to 250 mils rather than the 2 to 6 mils a brushed enamel leaves behind, and because they cure into a flexible film that moves with the steel or concrete underneath.

The four attack mechanisms on agricultural equipment

  • Chemical attack. Ammonia off manure and poultry litter, urea and UAN fertilizer salts, silage acids, milk-house sanitizers, diesel and hydraulic oil. Each attacks a different binder chemistry, which is why a general-purpose paint rarely survives a full season in more than one of those environments.
  • Abrasion and impact. Grain and feed flow, rock in a truck bed, augers, hoppers, chutes and loader buckets. Abrasion is mechanical wear, and thin films simply do not have enough material to lose.
  • Moisture and freeze-thaw cycling. Condensation inside bins and tanks, wash-down water in barns, standing water in trenches and containment. Water that gets behind a rigid coating expands when it freezes and debonds it from the substrate.
  • Flex, vibration and thermal movement. Frames twist, tanks flex when filled, concrete moves seasonally. A coating with almost no elongation cracks at exactly the point where it is needed most.
Field noteRoughly nine out of ten agricultural coating failures we are called to inspect are not product failures. They are preparation failures — oil left in a weld seam, a concrete slab coated over trapped moisture, or a bin sheet coated below dew point. Correct prep is what converts a spec sheet number into twenty years of service.
Head-to-Head

Agricultural Coatings Compared: Polyurea vs. Epoxy vs. Enamel vs. Galvanizing

Every option below protects something well. The question is which failure mode you are buying protection against, and how much downtime you can afford while it cures. Hover or scroll the table for the full comparison.

CriteriaSprayed PolyureaPolyurethane / HybridEpoxyAg Enamel / Implement PaintHot-Dip Galvanizing
Typical film build40–250 mils, one pass40–125 mils10–40 mils2–6 mils3–6 mils zinc
Return to serviceSeconds to minutesMinutes to hours12–72 hours4–24 hours per coatOff-site, days to weeks
Elongation / crack bridgingUp to ~400%HighLow, brittleVery lowNot applicable
Abrasion resistanceExcellentVery goodGood until it chipsPoorGood, but thin
Ammonia / manure exposureExcellentVery goodFair, ambers and chalksPoorZinc is consumed
Cold-weather applicationDown to freezing with heated plural equipmentLimitedGenerally 50°F+Generally 50°F+Shop process
Repairability on-farmSpot re-spray, chemically bondsGoodGrind and recoatEasy but short-livedCold galv touch-up only
Best fitBins, beds, trailers, floors, containment, tanksUV-stable topcoats, thinner builds, colorInterior floors, mild chemical roomsCosmetic refresh, resale appearanceNew fabricated steel, fencing, framework
If the asset flexes, gets hit, gets wet or gets washed, elastomeric wins. If the asset only needs to look new for the auction, paint is honest value.
Application Map

Where Agricultural Coatings Belong on a Working Operation

Select a category to see the assets, the exposure they fight and the ArmorThane system that usually fits.

Rolling stock and implements

  • Assets: truck and tender beds, gravity and hopper trailers, tractor floors and steps, loader buckets, brush hogs, tillers, planter frames, harvester decks, balers, mower decks, feed mixers.
  • Exposure: impact and gouging, fertilizer salt, hydraulic oil, UV, road de-icers, constant vibration.
  • Typical spec: 80–125 mil polyurea over blasted steel, with a UV-stable aliphatic topcoat where color retention matters.
  • Payoff: product releases cleanly instead of sticking and rusting in the corners, and resale condition holds.
  • See also: farm equipment coatings and material handling equipment.

Bins, silos, augers and legs

  • Assets: grain bin exteriors and roofs, bin bases and stiffener lines, hopper cones, augers, bucket elevators, drag conveyors, dump pits, seed and feed hoppers.
  • Exposure: condensation, abrasive grain flow, fumigant residue, hail, wind-driven rain at the sheet laps.
  • Typical spec: 40–80 mil polyurea on exteriors and laps; abrasion-graded build in flow paths and cones.
  • Payoff: sealed sheet laps and fastener heads, which is where nearly every bin corrosion problem starts.
  • Deep dive: grain bin coatings.

Barn floors, alleys and animal contact surfaces

  • Assets: barn and shop floors, dairy parlors and alleys, milk house slabs, farrowing decks, wash bays, feed rooms, stall dividers, gates and headlocks.
  • Exposure: lactic and acetic acid, ammonia, sanitizers, hoof abrasion, twice-daily wash-down, freeze-thaw at doorways.
  • Typical spec: 60–125 mil polyurea over CSP 3 profiled concrete with coved edges and an aggregate broadcast for slip resistance.
  • Payoff: a seamless, cleanable surface with no grout lines for bacteria and no spalling at drains.
  • See also: concrete coatings and spray foam insulation for condensation control overhead.

Secondary containment and water management

  • Assets: manure pits and lagoon transitions, fertilizer and fuel containment curbs, concrete trenches and channels, water and effluent tanks, ponds and reservoir walls, culverts.
  • Exposure: continuous immersion, hydrostatic pressure, biological acids, root intrusion at joints, regulatory inspection.
  • Typical spec: 125–250 mil polyurea with detailed terminations, reinforced at joints and penetrations.
  • Payoff: a monolithic liner that spans hairline cracks instead of leaking through them.
  • Related engineering: foundation waterproofing.
Execution

Surface Prep and Application: Where Agricultural Coating Jobs Are Won or Lost

Two crews can spray the same agricultural coatings on the same bin and get a ten-year difference in outcome. The variable is almost never the drum. It is what happened in the four hours before the gun was triggered.

On steel

  • Degrease first. Abrasive blasting over oil drives contamination into the profile instead of removing it.
  • Blast to a clean, angular profile in the SSPC-SP 6 to SP 10 range, with 2–4 mils of anchor tooth for heavy builds.
  • Coat within the same working day, before flash rust forms. Humid mornings shorten that window dramatically.
  • Stripe-coat welds, edges, bolt heads and stiffener lines before the full pass.

On concrete

  • Diamond grind or shot blast to CSP 2–3. Acid etching alone is not a substitute for mechanical profile.
  • Verify moisture with a calcium chloride or in-situ RH test. Slabs on grade without a vapor barrier are the classic cause of blistering.
  • Repair spalls, saw-cut and detail moving joints, and cove all wall-to-floor transitions.
  • Prime with the matched epoxy or moisture-tolerant primer so the elastomer bonds to sound substrate, not laitance.

Ambient conditions

Substrate temperature must sit at least 5°F above dew point, and heated plural-component equipment must hold hose and block temperatures within the manufacturer’s window. Fast-set polyurea is forgiving about cold air and unforgiving about wet steel. If you are running your own crew, matched high-pressure spray equipment is not optional for these chemistries.

Do not skipPull adhesion test pucks on a test patch before mobilizing a full bin or slab. Twenty minutes of testing routinely saves an entire re-blast, and it gives you documentation if a warranty question ever comes up.
Budget

What Agricultural Coatings Cost, and What Really Drives the Number

There is no honest flat price per square foot for agricultural coatings, because two identical bins in the same county can differ by 60% once you account for what is already on the steel. These are the six variables that move a quote:

  • Existing surface condition. Blast-ready steel is cheap. Pitted steel with failing enamel, or a slab with old sealer, adds a full prep phase.
  • Square footage and geometry. Flat trailer decks spray fast. Cones, augers, stiffeners, ladders and rafters multiply labor without adding much area.
  • Specified film thickness. Material cost scales almost linearly with mils, which is why over-speccing a cosmetic surface wastes money.
  • Access and staging. Lifts, scaffolding, confined-space entry and containment for overspray are real line items.
  • Season and weather window. Work squeezed between harvest and freeze-up costs more than work scheduled in a shoulder season.
  • Certification and documentation. Food-contact considerations, thickness logs, adhesion testing and warranty paperwork add engineering time.

Agricultural Coating Coverage & Budget Estimator

Enter your area and target film build for a planning-level material and installed-cost range. Interactive — results update as you type.

Estimated material required—
Planning-level installed range—
Typical crew time on site—

Estimates only, for budgeting conversations. Material figures assume 1,604 sq ft per gallon at 1 mil with 15% loss for overspray and geometry. They are not a quote and do not account for prep, staging, primer or freight. For a firm number, request a walk-through with an ArmorThane applicator.

Before You Buy

Agricultural Coatings Pre-Project Checklist

Tick these off before a crew mobilizes

Answers

Agricultural Coatings: Frequently Asked Questions

What is the best coating for agricultural equipment?

For most working farm assets, a sprayed polyurea or polyurea/polyurethane hybrid at 80 to 125 mils is the best all-around agricultural coating. It resists impact and abrasion, tolerates ammonia and fertilizer salts, flexes with vibrating frames, and returns the machine to service the same day. Where color retention matters, an aliphatic UV-stable topcoat is added over the elastomer.

How long do agricultural coatings last?

On properly blasted steel with verified film thickness, a sprayed elastomeric system commonly delivers 15 to 20-plus years of service, and often outlives the asset. Life drops sharply when prep is compromised, when the coating is applied below dew point, or when the film is built too thin in flow paths and at edges.

Can agricultural coatings be applied over rust or old paint?

Not over active rust or a failing film. Loose product, scale and contamination must be removed mechanically, and any tightly adhered existing coating has to pass an adhesion test and be profiled before overcoating. Spraying a high-strength elastomer over weak paint simply transfers the failure to the old layer.

Are these coatings safe around grain, feed and livestock?

Many polyurea and polyurethane systems cure to an inert, seamless film that is easy to sanitize, which is why they are used in parlors, feed rooms and habitats. Direct food or feed contact is a separate question that depends on the specific product and its documentation, so always request the applicable data for the exact system before specifying interior grain-contact surfaces.

What does it cost to coat a grain bin or barn floor?

Planning ranges typically run from the low single digits per square foot for thin exterior builds up to double digits for heavy containment thicknesses, with surface condition and access driving most of the spread. Use the estimator above for a budgeting figure, then get a walk-through for a firm quote.

Can agricultural coatings be sprayed in cold weather?

Fast-set polyurea can be applied in cold ambient conditions with heated plural-component equipment, which is a major advantage for shoulder-season and post-harvest scheduling. The controlling limit is not air temperature but substrate temperature relative to dew point, and the substrate must be dry and frost-free.

Polyurea or epoxy for a dairy or barn floor?

Epoxy is rigid and will telegraph and crack at moving joints and slab movement, while polyurea bridges hairline cracks and tolerates thermal cycling and wash-down. For agricultural floors that see acid, ammonia, hoof traffic and daily washing, an elastomeric system over profiled concrete is the more durable choice.

Can I spray agricultural coatings myself?

Plural-component polyurea requires heated high-pressure proportioning equipment, PPE and trained technique because the material gels in seconds. Operations with enough recurring square footage often bring it in-house with matched equipment and training; everyone else is better served by a certified applicator.

Related ArmorThane Resources

Grain Bin CoatingsSheet laps, cones and flow paths — the full storage guide. Farm Equipment CoatingsBeds, trailers, tractors and implements in detail. Concrete CoatingsBarn floors, parlors, trenches and containment slabs. Spray Foam InsulationCondensation and heat control in barns and shops. Material Handling EquipmentHoppers, augers, elevators and conveyors. Polyurea vs. EpoxySix reasons elastomerics outperform epoxy on concrete. High-Pressure Spray EquipmentPlural-component rigs for in-house application. Find an ApplicatorLocate a certified ArmorThane applicator near you.

Get an Agricultural Coatings Assessment

Tell us the asset, the exposure and the shutdown window. We will specify the system, the film build and the prep standard — and connect you with a certified applicator in your area.

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