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ARMORTHANE PROTECTING YOUR WORLD

PROTECTING YOUR WORLD

ARMORTHANE PROTECTING YOUR WORLD

Polyaspartic Floor
Coating: Cost, Cure
Times & Specs

A two-part aliphatic polyurea that rolls on thin, stays color-fast in the sun and carries traffic in hours. Here’s what it costs, what the data sheets actually say, and how to get a floor that lasts.
Floor Coating Quotes

Want a floor that's done in a day? Talk to a certified installer.

Tell us about the space and the slab. We'll connect you with an ArmorThane-certified applicator who can test it, grind it properly and quote a polyaspartic system that fits.

  • Garage, shop, basement, patio and commercial floors
  • Diamond-ground prep and moisture testing
  • ArmorFloor aliphatic polyaspartic systems
  • Contractors: ask about adding floors to your business
Rather talk now? Call (417) 831-5090
Step 1 of 3
$5–$12
Per sq ft installed
Installer data, 2024–2026
24–48 hr
Until you can park on it
Foot traffic in 4–24 hr
≤3 lb
Max slab moisture (MVER)
ASTM F1869, typical TDS limit
CSP 2–3
Required surface profile
Diamond grind or shotblast

Polyaspartic has taken over the garage-floor business for a simple reason: a crew can grind, coat and walk away from a two-car garage in a day, and the floor doesn't turn yellow in the sun. That speed is also why it has a reputation for failing when it's installed badly. It cures so fast that there's no room to hide a bad slab.

We manufacture polyaspartic (our ArmorFloor line) alongside spray polyurea and polyurethane, so this guide is written from the chemistry and the data sheets out. It covers what polyaspartic is, what published test data says about it, what it costs in 2026, how to tell whether your slab is ready, and when it's the wrong product. The four calculators below price a job, check your slab and weather, work out material, and build a system for your space.

What's in this guide
  1. 1What polyaspartic floor coating is
  2. 2Specs at a glance: the data-sheet numbers
  3. 3Pros, cons, and when it's the wrong choice
  4. 4What it costs in 2026 (estimator)
  5. 5Is your slab ready? (checker)
  6. 6How it's installed, step by step
  7. 7Coverage and film math (calculator)
  8. 8Dry and cure times, hot tire pickup
  9. 9Picking a system for your space (builder)
  10. 10Slip resistance
  11. 11VOCs, odor and isocyanate safety
  12. 12Why polyaspartic floors fail
  13. 13Polyaspartic FAQ
The basics

What is polyaspartic floor coating?

Quick answer

Polyaspartic floor coating is a two-part aliphatic polyurea that rolls on in thin films, stays color-fast in sunlight and cures in hours instead of days. Professionally installed garage systems typically run $5–$12 per square foot, take foot traffic the same day or the next morning, and carry vehicles after 24–48 hours.

The chemistry in plain English

Every polyurea is an isocyanate reacting with an amine. In spray polyurea that reaction is so fast it's over in seconds, which is why it needs heated, plural-component equipment and an impingement gun. Polyaspartic slows it down on purpose. The amine side is a polyaspartic ester, made by reacting an amine with a maleate so it ends up as a bulky, sterically hindered secondary amine. Covestro, whose predecessor Bayer developed the chemistry in the early 1990s, describes the result as a reactivity you can tune: pot life, drying time and hardness all get dialed in by which aspartic ester and which aliphatic hardener you pair.

The hardener is an aliphatic polyisocyanate (typically HDI-based) rather than the aromatic MDI used in most spray elastomers. That one choice is why polyaspartic doesn't chalk or yellow under UV. There's no aromatic ring in the backbone for sunlight to attack.

Polyaspartic vs polyurea: same family, different speed

Chemically, polyaspartic is a polyurea; both form urea linkages. The practical difference is time. Spray polyurea gels in 2 to 10 seconds and builds a thick, stretchy membrane in one pass. Polyaspartic gives you somewhere between 15 minutes and two hours of working time depending on the grade and the humidity, so it can be mixed in a bucket and rolled or squeegeed at 5 to 16 mils per coat. That's why the best-performing systems often combine them: a thick polyurea or epoxy base for build and moisture tolerance, then a polyaspartic topcoat for UV and wear.

"Polycuramine," "1-day polyurea" and other label names

Retail kits don't always say polyaspartic on the can. One big-box garage kit calls its resin "polycuramine" on its data sheet; others say "1-day polyurea." Some of these are polyaspartics, some are blends. The only way to know is the technical data sheet: look for an aspartic ester amine and an aliphatic isocyanate, the volume solids, and the VOC content. Marketing names aren't chemistry.

Published test data

Polyaspartic floor coating specs at a glance

Nobody ranking for this topic publishes test data, so here it is. The middle column is the range across three commercial floor-grade polyaspartic data sheets (listed in the sources). The right column is our ArmorFloor TopCoat, using the figures on its product page.

PropertyTest methodPublished polyaspartic rangeArmorFloor TopCoat
Mix ratio (by volume)–1:1 or 2:11A : 1B
Volume solids–77–93%See TDS
VOCEPA Method 24 / ASTM D3960<50 to <150 g/LSCAQMD-compliant formula
Film per coat–6–16 wet mils (100–260 sq ft/gal)14 ± 2 mils dry
Working time–14 min to 2 hr (grade and humidity)See TDS
HardnessASTM D2240Shore D 70 at 24 hr, 86 at 5 days (one product)65 ± 5 Shore D
Tensile strengthASTM D412 / D2370≈4,000 psi3,500 ± 300 psi
ElongationASTM D412 / D23705–40%See TDS
AbrasionASTM D4060 (CS-17, 1,000 g)30 mg per 1,000 cycles; 0.02 g per 500–
Gloss, 60°ASTM D52390–95–
UV (QUV 1,000 hr)ASTM G15487–89 gloss retained (one product)Aliphatic, UV-stable
Wet slip resistance (DCOF)ANSI A326.30.63 full flake; >0.42 levelDepends on texture
Adhesion to concreteASTM D7234>400 psi, concrete fails first–
Application temperature–35–85°F or 40–90°F by product; RH ≤85%See TDS
Ranges are published values for specific commercial products, not universal truths. "See TDS" means the figure is on the ArmorFloor technical data sheet; ask us for it. Sources: Simiron Polyaspartic HS PDS, Crown 8175 TDS, Deco-Crete Polyaspartic 90 TDS, ArmorThane ArmorFloor TopCoat.
The number most sites get wrongYou'll see polyaspartic floors described as having 100% to 400% elongation. Floor-grade polyaspartics don't. The data sheets we reviewed publish 5% to 40%. They're hard, abrasion-resistant films, not rubbery membranes. If you need a coating that stretches across moving cracks, that job belongs to a polyurea base underneath.
The honest version

Pros and cons of polyaspartic floors

Where it wins

Speed, sunlight and wear

  • Fast return to service. Walk on it in hours, park on it in a day or two.
  • UV-stable. Aliphatic chemistry holds color and gloss on sunlit floors, patios and pool decks.
  • Abrasion resistance. Published Taber losses around 30 mg per 1,000 cycles.
  • Chemical resistance. One published chart rates gasoline, motor oil, brake fluid and 20% road salt as excellent.
  • Cold-weather grades. Some products install down to 35°F, where most epoxies stop.
Where it falls short

Pot life, prep and price

  • Short working time. As little as 14 minutes in humid air. Crews batch small and move fast.
  • Thin film shows everything. It won't level out a rough or patched slab.
  • Needs a dry, ground slab. Moisture limits are tighter than for epoxy primers.
  • Slick when wet unless texture is broadcast into it.
  • Costs more per gallon than epoxy, and it's not a waterproofing membrane.

When polyaspartic is the wrong choice

  • A damp slab with no vapor-barrier primer. Moisture pushing up through the concrete lifts thin films. Test first, and use a moisture-mitigation primer if the numbers are high.
  • You need a waterproofing membrane. Over living space, a plaza deck or a leaking basement, the thick flexible layer should be polyurea. Polyaspartic goes on top.
  • Heavy impact and forklifts. A thin polyaspartic alone isn't a high-build wear layer. Put a thicker base under it.
  • Strong acid exposure. Some published charts rate 10% nitric acid "not recommended" and concentrated sulfuric acid only "fair."
  • A first-time DIYer working alone in summer humidity. The resin is fine. The working window isn't forgiving.

If you're comparing chemistries head to head, we've put the performance numbers side by side in polyaspartic vs epoxy, and the three-way picture (with a lifecycle cost calculator) in polyurea vs epoxy floor coatings.

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How much does a polyaspartic floor cost in 2026?

Published installer pricing has settled at about $5 to $12 per square foot for a full-flake polyaspartic garage floor, with simpler systems starting around $4. Where a quote lands in that range comes down to the slab more than the coating.

Source (date)Installed $/sq ftTypical garage
HomeGuide (Nov 2024)$5–$12 (materials $2–$6, labor $3–$6)2-car, 400–576 sq ft: $2,000–$6,900
The Garage Guide (Mar 2026)$5–$122-car: $2,400–$6,000
MyGarageFloors (Sep 2026)$5–$122-car: $1,595–$4,337
Bob Vila (Jan 2024)$4–$9400 sq ft: $1,600–$3,600
DIY material (2026)$2–$5 material onlyPlus grinder rental, diamonds, patching and your time
Installer-reported ranges, not ArmorThane quotes. Garage sizes: 1-car 288–392, 2-car 400–576, 3-car 576–864 sq ft (HomeGuide).

What pushes a quote up

Crack repair adds about $0.50–$2 per square foot, spall and pit repair $1–$5, removing an old coating $1–$3, and a moisture-mitigation primer $1–$5. Moisture and hardness testing runs $50–$300 as a line item. Stem walls, the short concrete curbs around a garage, are almost always extra. Custom flake blends add $0.50–$2. Metro areas in the Northeast and on the West Coast tend to price higher, which some installers put at 15–30%.

Cost estimator

Estimate an installed polyaspartic floor

Ranges built from 2024–2026 published installer pricing. A site visit and moisture test set the real number.

Slab condition and options
$3,300–$8,550
Estimated installed range
$5,950
Midpoint
$5.60–$14.51
Per sq ft, all-in
589 sq ft
Coated area incl. stem walls

Full-flake system: $5–$12/sq ft base, plus Crack repair (+$0.50–$2.00/sq ft), plus $50–$300 testing. Stem walls (13.3 sq ft) are priced at the floor rate, which is an assumption; many installers charge them separately. DIY material runs about $1,179–$2,947 ($2–$5/sq ft), before grinder rental, diamonds, patching and your time.
Get a firm quote from a certified ArmorThane applicator · compare lifecycle cost in polyurea vs epoxy.

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Is your slab ready for polyaspartic?

Most polyaspartic failures trace back to the slab: moisture pushing up from below, a smooth or sealed surface the coating can't grab, or a coat laid down too close to the dew point. The limits below come straight from published data sheets and the ASTM and ICRI standards they reference.

Moisture testing: ASTM F1869 and F2170

There are two recognized tests. ASTM F1869 (the calcium chloride test) measures the moisture vapor emission rate in pounds per 1,000 square feet per 24 hours. ASTM F2170 drills probes into the slab and reads relative humidity inside it. Neither standard sets a pass mark; the coating maker does. Published polyaspartic limits are typically 3 lb MVER and 75–80% RH. Above that, you need a moisture-vapor-barrier primer rated for your reading. The plastic-sheet test, where you tape down a square of poly overnight and look for darkening, is a useful screen but not a substitute.

Surface profile: why grinding beats acid etching

The International Concrete Repair Institute grades concrete surface profile from CSP 1 (nearly flat) to CSP 10 (very rough). Polyaspartic data sheets call for CSP 2 at minimum, and CSP 3 or more under a full broadcast flake system. Diamond grinding or shotblasting gets you there. Acid etching and pressure washing don't produce a reliable mechanical key, and they leave sealers and densifiers in place. New concrete needs at least 28 days of cure first.

Temperature, humidity and dew point

The slab has to be at least 5°F above the dew point, or you're coating over condensation you can't see. Most data sheets cap relative humidity at 85%. Humidity also speeds polyaspartic up: one manufacturer's own table shows working time at 80% RH running just 40–58% of what it is at 20% RH. In practical terms, high humidity can roughly halve your working time. Our article on weather conditions and coating applications goes deeper on dew point.

Slab readiness & install-window checker

Pass, caution or fail, with the fix for each

Limits from published polyaspartic data sheets, ASTM F1869/F2170 and ICRI 310.2R.

Overall: CAUTIONFix the cautions first
PASS

Concrete age: 400 days

Past the 28-day minimum cure.

PASS

MVER 2.4 lb/1,000 sq ft/24 hr

At or under the typical 3 lb polyaspartic limit.

CAUTION

Vapor retarder: unknown

Slabs on grade without a retarder can see seasonal moisture swings beyond what one test shows. Consider a moisture primer.

PASS

Surface prep: diamond grind

Target CSP 2–3 (CSP 3+ under a full flake broadcast).

PASS

Dew point 57.7°F, slab margin 12.3°F

At least 5°F above dew point.

PASS

Relative humidity 55%

Within range.

PASS

Slab temperature 70°F

In the sweet spot.

Tip: coat in the morning or evening when the slab isn’t heating up. More on dew point and weather and pinholes and blisters.

Process

How a polyaspartic floor is installed, step by step

This is the sequence for a typical one-day full-flake garage system. Commercial systems add steps, but the order doesn't change.

  1. Inspect and test

    Moisture test (F1869 or F2170), check for sealers with a water-drop test (water beading means something's on the surface), and adhesion-test any old coating with an X-cut and tape. More than about 10% lift means it comes off.

  2. Grind

    Diamond grind or shotblast to CSP 2–3, edges included. Vacuum everything. This is the step that decides whether the floor lasts.

  3. Repair and detail joints

    Fill cracks, spalls and pits and grind them flush; a thin film will telegraph every flaw. Honor isolation and expansion joints. Sawcut control joints can be filled and coated over, with the understanding that the coating may crack there if the slab moves.

  4. Base coat

    Roll or squeegee the base at roughly 6–8 wet mils. On a damp-risk slab, a moisture-mitigation primer goes down first.

  5. Broadcast flake to rejection

    Throw vinyl chip into the wet base until it won't take any more. A full broadcast of 1/4-inch chip uses about one pound per 6 square feet.

  6. Scrape and vacuum

    Once the base cures (around 1.5 hours on one published system), scrape off loose chip and vacuum thoroughly.

  7. Polyaspartic topcoat

    Roll the topcoat at about 10–16 wet mils per pass. Mix only what the crew can place inside the working time, and start the next batch within 5–10 minutes to avoid tie-in lines.

  8. Cure and hand back

    Foot traffic after the product's walk-on time, vehicles after 24–48 hours, full chemical resistance in about a week.

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Coverage and film-thickness math

One U.S. gallon spread one mil thick covers 1,604 square feet. Every coverage rate on every data sheet comes from that number: 1,604 divided by the wet film thickness gives square feet per gallon. Dry film is wet film times volume solids, which is why a 90%-solids product loses a tenth of its thickness as it cures. Add about 10% for losses on a ground slab, more on porous concrete.

Material & coverage calculator

Gallons, kits, flake and dry film for your floor

For contractors and serious DIYers. Enter the numbers from your product's TDS where you have them.

2.3 gal
Base / coat 1
4.3 gal
Topcoat / coat 2
5 kits
Total kits
80 lb
Flake (full broadcast)

Coverage: coat 1 229 sq ft/gal, topcoat 123 sq ft/gal before losses. Dry film: coat 1 7.0 mils + topcoat 11.7 mils (chip adds build; full-flake systems commonly measure over 50 mils nominal). Flake: 2 box(es) of 40 lb at full broadcast (6 sq ft/lb). Mix only what your crew can place in the working time; humidity can roughly halve it.

Contractors: if you're pricing polyaspartic work and want a supplier that also makes the polyurea base coats and the equipment to spray them, look at ArmorFloor aliphatic polyaspartic and our decorative color quartz and texturing aggregate. You can request samples and the TDS through the form at the top of this page.

Return to service

How long does polyaspartic take to dry and cure?

Most professional polyaspartic floors take foot traffic the same day or the next morning, vehicles after 24–48 hours, and reach full chemical resistance in about a week. Cooler, drier air stretches every number. Here's what the published data sheets actually list.

MilestonePublished rangeNotes
Walk-on / light traffic4–24 hrFast grades 4–6 hr; slowest grades up to 30–34 hr
Vehicles / heavy traffic24–48 hrOne product calls for 7 days
Full chemical resistance5–7 daysKeep fluids and salt off until then
Recoat / next coatOnce tack-free, within the recoat windowAfter the window: abrade, clean, recoat
One manufacturer notes its traffic times assume at least 72°F and 50% RH, and run longer below either.

Hot tire pickup: why it happens and how to avoid it

Hot tires can run well above ambient after a highway drive, and softened rubber grips the coating. On a well-bonded, fully cured floor that's not a problem. When a coating does lift, it's almost always one of three things: weak adhesion from poor grinding, a film that hadn't cured when the car went on it, or a product not rated for hot-tire resistance. The fix is the same as for most floor failures: grind properly, respect the vehicle cure time, and use a topcoat the maker rates for hot tires.

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Choosing a polyaspartic system for your space

"Polyaspartic floor" describes the topcoat, not the whole system. A garage, a pool deck and a commercial kitchen need different layers under it and different texture on it. Pick your space and when the job starts, and the builder lays out the stack and the timeline.

System builder & return-to-service planner

Layer stack, texture and when you get the floor back

Every system starts the same way: grind to CSP 2–3, repair cracks and spalls, test moisture.

Residential garageGrind to CSP 2–3 · repair · test moisture
Layer stack
  • Base coat 6–8 wet mils
  • Full broadcast of 1/4" vinyl chip
  • Polyaspartic topcoat 9–14 mils dry
Texture & products
  • Texture: Full flake; aim for wet DCOF ≥0.42 (one full-flake system tested 0.63)
  • ArmorThane system: ArmorFloor / ArmorFloor TopCoat with decorative chips
  • Why: Hot tires, road salt and vehicle fluids
Return to service after the final topcoat
  • Foot traffic: Fri 7 PM to Sat 3 AM
  • Vehicles or heavy traffic: Sat 3 PM to Sun 3 PM. Conservative default: walk 24 hr, park 48 hr.
  • Full chemical resistance: about Fri 3 PM

Ask your applicator for the tested DCOF and the product TDS for the exact system. Find a certified applicator.

Garage floors

The classic: base coat, full chip broadcast, polyaspartic topcoat. The chip hides imperfections and adds texture; the topcoat takes the hot tires, road salt and fluids. For more on garage-specific trade-offs, see our concrete coatings overview.

Pool decks and patios

Outdoors is where aliphatic chemistry earns its keep. Use a fine aggregate for grip, keep it comfortable for bare feet, and aim for a higher slip rating than you'd accept indoors. Our pool deck resurfacing page and ArmorFloor pool makeover show it in practice.

Basements

Below grade, vapor drive is the risk that matters. Test, and if the slab is over the limit, a moisture-mitigation primer isn't optional. See basement floor coatings.

Commercial kitchens, kennels and healthcare

Wet, greasy, cleaned constantly. These floors need a full quartz or aluminum-oxide broadcast for grip and a product whose chemical chart covers the cleaners actually used. One published chart rates bleach, urine and betadine as excellent.

Warehouses, showrooms and parking decks

Forklift traffic needs build a thin coat can't provide, so put a thicker base underneath. Showrooms get the high-gloss treatment. Parking decks move, see UV and eat de-icing salt; the usual answer there is a traffic membrane or aliphatic polyurea such as HighLine 410 under a UV-stable topcoat. Our industrial flooring page covers the heavier systems.

Safety underfoot

Is polyaspartic slippery when wet?

A smooth, glossy polyaspartic can be. The U.S. benchmark is ANSI A326.3, which calls for a measured wet dynamic coefficient of friction (DCOF) of 0.42 or higher on level interior floors expected to be walked on wet. Below that, the floor is meant to be kept dry. Wetter and exterior areas are typically specified higher, around 0.50 to 0.55.

Texture fixes it. One full-flake polyaspartic system tested at a wet DCOF of 0.63. Broadcasting quartz or aluminum oxide (commonly #54, #36 or #24 grit) into the topcoat raises it further. On a pool deck, favor finer aggregate so it isn't harsh on bare feet. Whatever you choose, ask your installer for the tested DCOF of the system they're putting down, not just the brochure line. Our non-slip coatings page covers the aggregate options.

Straight talk

Is polyaspartic toxic? VOCs, odor and isocyanates

The risk is during installation, not after. Polyaspartic hardeners contain isocyanates. OSHA lists surface coatings among the sources of isocyanate exposure and names occupational asthma, other lung problems and eye, nose, throat and skin irritation as the main effects. That's why installers wear properly fitted NIOSH-approved respirators, nitrile gloves and eye protection, and why the space should be ventilated and kept clear of kids and pets until your installer says otherwise. Once fully cured, the film is inert.

On VOCs, "polyaspartic" doesn't automatically mean zero. Published products run from under 50 to under 150 grams per liter, and 77–93% volume solids. For context, the federal limit for floor coatings is 400 g/L (40 CFR Part 59), while Southern California's Rule 1113 caps floor coatings, including garage floors, at 50 g/L. ArmorFloor TopCoat is formulated to meet the SCAQMD standard.

Troubleshooting

Why polyaspartic floors fail, and how to prevent it

What you seeLikely causePrevention
Peeling or delaminationMoisture vapor, poor profile, sealer or densifier left on the slabTest to F1869/F2170, grind to CSP 2–3, remove sealers
Hot tire pickupWeak adhesion or incomplete cureGrind prep, respect vehicle cure time, hot-tire-rated topcoat
Pinholes or blistersOutgassing from the slab; moisture reacting with isocyanate (CO₂); air whipped in while mixingDry slab, mix at medium speed, don't coat over uncured primer
White, hazy filmApplied too thick, pooled, or rolled after it began to setStay within the spread rate (about 16 mils per pass max on published data)
Lap lines and tie-insToo long between batchesNext batch within 5–10 minutes; use joints as breaks
Material gels in the bucketHeat or humidity; batch too bigSmaller batches, slower grade
Slab flaws show throughThin film doesn't levelPatch and grind flush before coating
Cracks at jointsSlab movement under coated-over jointsHonor moving joints
Etching or stainsStrong acids left on the floorClean spills promptly; know your chemical chart
Slick when wetSmooth, glossy topcoatBroadcast quartz or aluminum oxide

For pinholes specifically, our blister and pinhole troubleshooting tech tip walks through outgassing and how applicators prevent it. And before any coating goes down, the surface preparation guide is worth ten minutes.

Care, cleaning and recoating

Put walk-off mats at the doors, sweep often, and mop with a mild cleaner and a soft pad. Wipe up strong acids promptly and check your product's chemical-resistance chart before using any harsh cleaner. When the floor starts looking tired, it doesn't need to come out: abrade it to a uniform dull finish, clean it, and roll a fresh topcoat.

From the manufacturer

ArmorFloor: our aliphatic polyaspartic

ArmorFloor is a two-component aliphatic polyaspartic made for moderate to severe chemical environments, indoors or out. It's UV-resistant, takes decorative chips or Color Quartz, and can be applied by roller, cup gun or airless sprayer at a minimum of 5 mils. It's mixed with a Jiffy mixer at medium speed so air isn't whipped in, which is the difference between a clean film and pinholes.

ArmorFloor TopCoat is the thin-film version for waterproofing membrane systems: 1A:1B by volume, 14 ± 2 mils dry per coat, 65 ± 5 Shore D, 3,500 ± 300 psi tensile, and formulated to meet Southern California's SCAQMD air-quality standard.

Find an installer →ArmorFloor product page
Applicator rolling a polyaspartic flake floor coating in a metal building
Rolling a polyaspartic topcoat over a full-flake broadcast.
For contractors

Add polyaspartic floors to your coatings business

Floors pair naturally with bedliners, roofing and spray foam: same customers, same crews, fast turnaround. We make ArmorFloor, the polyurea bases and the equipment, and we train your team. No franchise fee and no royalties; starter packages begin at $25,000.

Become an applicatorWhy polyaspartic sells
Straight answers

Polyaspartic floor coating FAQ

What is polyaspartic floor coating?

A two-component coating made by reacting polyaspartic ester resin with an aliphatic polyisocyanate, which makes it a type of aliphatic polyurea. The aspartic ester slows the reaction from seconds to minutes, so it can be rolled or squeegeed on in thin, UV-stable films. The chemistry was introduced in the early 1990s.

Is polyaspartic the same as polyurea?

It's a member of the polyurea family, since both form urea linkages. Conventional spray polyurea gels in seconds and needs heated plural-component equipment. Polyaspartic gives roughly 15 to 120 minutes of working time depending on grade and humidity, which is why it's rolled on as a floor coating instead of sprayed as a thick membrane.

Is polyaspartic better than epoxy?

For garages, sunlit floors and anything outdoors it usually is: it's UV-stable, returns to service in hours, and some grades install down to 35°F. Epoxy costs less, gives more working time and handles damp slabs better as a primer. Many of the best systems use both. See our polyaspartic vs epoxy comparison.

How much does a polyaspartic garage floor cost?

Installer data from 2024 to 2026 puts professionally installed systems at about $5 to $12 per square foot. A 400 to 576 sq ft two-car garage runs roughly $2,000 to $6,900. Crack repair, moisture mitigation, old-coating removal and stem walls add to that. DIY material runs about $2 to $5 per square foot.

How long before you can walk or drive on a polyaspartic floor?

Published data sheets list foot traffic after about 4 to 24 hours and vehicles after 24 to 48 hours, with one product calling for 7 days. Full chemical resistance takes roughly 5 to 7 days. Cool, dry air stretches every number, so ask your installer for the timeline on the specific product.

How long does a polyaspartic floor last?

Installers commonly quote 10 to 20 or more years for residential garages. We haven't found an independent long-term field study, so treat that as an estimate. Life depends mostly on surface prep, slab moisture and traffic, not the resin.

Can polyaspartic be applied over epoxy?

Yes, over epoxy that is sound and fully bonded. It has to be sanded to a uniform dull profile, cleaned and adhesion tested first. An X-cut tape test where more than 10% of the coating lifts means the old coating comes off to bare concrete.

Can polyaspartic be used outside, and does it yellow?

Aliphatic polyaspartics are UV-stable. One published data sheet reports 87 to 89 gloss units retained after 1,000 hours of QUV accelerated weathering (ASTM G154). That makes it suitable for patios, pool decks and garage aprons. Add texture anywhere it will be wet.

Is polyaspartic slippery when wet?

A smooth, glossy polyaspartic can be slick when wet. ANSI A326.3 calls for a wet DCOF of at least 0.42 on level interior floors expected to get wet. One full-flake polyaspartic system tested at 0.63, and broadcasting quartz or aluminum oxide into the topcoat raises it further.

Is polyaspartic toxic?

The hazard is during installation. The hardener contains isocyanates, which OSHA links to occupational asthma and eye, nose, throat and skin irritation, so installers wear respirators, gloves and eye protection. Once cured, the film is inert. Ventilate and follow your installer's advice on when to go back in.

Can I apply polyaspartic myself?

You can. DIY kits cost about $2 to $5 per square foot in material. But pot life can be as short as 15 minutes and drops further in humidity, and a good bond still needs a diamond-ground slab. Most failed DIY floors trace back to prep and moisture, not the resin.

Can you recoat a polyaspartic floor?

Yes. Within the product's recoat window, the next coat goes on once the first is tack-free. After that, abrade the whole floor to a dull profile, clean it and apply a fresh topcoat.

How do you clean a polyaspartic floor?

Put down walk-off mats, sweep regularly and mop with a mild cleaner and a soft pad. Wipe up strong acids quickly, since some published chemical charts rate nitric and concentrated sulfuric acid as not recommended or only fair. Check your product's chemical-resistance chart before using any harsh cleaner.

AT
ArmorThane Technical Team · Springfield, Missouri
Written from manufacturer data sheets, code text and 35+ years of spraying and supporting applicators. Last updated September 26, 2026.

Sources

Checked against ASTM F1869, F2170, D4060, D2240 and ANSI A326.3 as cited by the sources below. Third-party figures are published values for specific products; installer prices are dated ranges, not quotes.

  1. Covestro, Polyaspartics brochure: solutions.covestro.com/-/media/covestro/solution-center/brochures/mate
  2. Dormish, J., Polyaspartic Coatings, Adhesives & Sealants Industry (2016): adhesivesmag.com/articles/94477-polyaspartic-coatings
  3. Polyaspartic esters (chemistry and history): en.wikipedia.org/wiki/Polyaspartic_esters
  4. Simiron Polyaspartic HS product data sheet (PDF): simiron.com/wp-content/uploads/2020/09/SIM_Polyaspartic-HS_ProductData
  5. Simiron SimFlake SB 1-Day system guide (PDF): simiron.com/wp-content/uploads/2024/07/SIM_SimFlake-SB_1-Day-Polyurea_
  6. Crown Polymers 8175 CrownPro TDS (PDF): ocspecialtycoatings.com/wp-content/uploads/2026/02/crown-polymers-8175
  7. Deco-Crete Polyaspartic 90 TDS (PDF): deco-cretesupply.com/sites/default/files/2022-08/Polyaspartic%2090%20S
  8. Rust-Oleum RockSolid Polycuramine TDS: rustoleum.com/~/media/DigitalEncyclopedia/Documents/RustoleumUSA/TDS/E
  9. ASTM F1869, moisture vapor emission rate: store.astm.org/f1869-16a.html
  10. ASTM F2170, in-situ relative humidity: store.astm.org/f2170-19a.html
  11. ICRI Concrete Repair Bulletin on surface profile (PDF): icri.org/wp-content/uploads/2024/04/CRBMayJun14_WInkler.pdf
  12. Sherwin-Williams, guide to slip resistance in resinous flooring (ANSI A326.3): industrial.sherwin-williams.com/na/us/en/resin-flooring/media-center/a
  13. 40 CFR Part 59 Subpart D, architectural coatings VOC limits: ecfr.gov/current/title-40/chapter-I/subchapter-C/part-59/subpart-D
  14. South Coast AQMD Rule 1113 (PDF): aqmd.gov/docs/default-source/rule-book/reg-xi/r1113.pdf
  15. OSHA, Isocyanates: osha.gov/isocyanates
  16. Sensirion dew point calculation note (PDF): irtfweb.ifa.hawaii.edu/~tcs3/tcs3/Misc/Dewpoint_Calculation_Humidity_S
  17. Dampney, calculating coating requirements: dampney.com/Product-Line/Calculating-Coating-Requirements
  18. HomeGuide, polyaspartic floor coating cost (Nov. 2024): homeguide.com/costs/polyaspartic-floor-coating-cost
  19. Bob Vila, polyaspartic floor coating cost (Jan. 2024): bobvila.com/articles/polyaspartic-floor-coating-cost/
  20. ArmorThane, ArmorFloor aliphatic polyaspartic: armorthane.com/products/armorflooring-product-page/armorfloor-aliphati
  21. ArmorThane, ArmorFloor TopCoat: armorthane.com/products/armorcoat/armorfloor-topcoat-4/

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