Self-leveling
A pourable mix spread with a gauge rake and rolled to release air. Suits flat rooms and large production floors. The surface runs smooth to lightly textured, and slope is limited to what a flowing mix can hold.
Based in Alexandria · Serving the DMV
Service
Urethane Cement Flooring in Alexandria, VA
A cement-and-urethane hybrid built for steam, hot oil, wash-down and freezer cycles, installed in phases so your kitchen or production room keeps its schedule.
571-417-5802
or call 571-417-5802
- Diamond-groundNever acid-etched
- Moisture-testedBefore any coating
- Written scopeCrack and joint repair included
Overview
What urethane cement is, and why kitchens and breweries use it
Urethane cement (also sold as cementitious urethane or polyurethane concrete) is a multi-component flooring material. A water-based polyurethane resin is blended with cement-type powder and graded mineral aggregate, and the mix cures into a dense, mortar-like layer. It trowels a bit like a mortar, but it behaves like a polymer: it bonds hard to prepared concrete, resists many food acids and fats, and is far less brittle than a typical epoxy build.
The reason it earns its place is thermal behavior. Its expansion and contraction track the concrete beneath it much more closely than a thin resin film does, so a floor that sees steam hoses, near-boiling dish-machine discharge or a cold slab washed with hot water is far less likely to lift. A commonly cited example is a 35 degree F floor washed with 185 degree F water, a 150 degree swing in seconds. Thin standard epoxy tends to blister, craze or delaminate under that routine. A properly specified urethane cement is designed for it.
In the DMV that means restaurant line kitchens in Arlington, Alexandria and DC, brewery and distillery production rooms, commissary and catering kitchens, bakeries, dairies and cold-storage rooms in the Lorton, Manassas and Leesburg industrial areas. It is not the right answer for every floor, and it sits in a higher cost class than epoxy. This page covers what it does well, where it is overkill, and what to ask before you sign anything.
How the material is built and why it behaves differently from epoxy
Epoxy is a rigid resin film. Urethane cement is a composite: resin, cement-type fines and sand-sized aggregate mixed into one layer. The aggregate changes the physics. It reduces the thermal mismatch against the slab, adds bulk for impact and abrasion resistance, and leaves the layer less of a vapor seal than a solid film.
It is generally placed thicker than a coating. Contractor and manufacturer literature commonly describes about 1/8" to 1/4" for a one-step build, with 3/16" mentioned often, and thicker builds for heavier duty. One manufacturer data sheet lists continuous service up to 200 degrees F, and others describe higher intermittent exposure on heavy-duty builds. Treat those figures as category information. The only temperature rating that matters for your floor is the one on the data sheet for the exact system and thickness.
Chemically it handles the daily mess of a food space well: fats and oils, lactic acid from dairy, acetic acid from vinegar sauces, citrus, sugars, fermentation residue and diluted sanitizers. It is not immune to everything. Strong concentrated acids and oxidizers can attack it, and a dropped keg or a failed pallet-jack wheel can chip a topcoat. A good specifier asks what is on the floor, how hot, how often and for how long.
- Hybrid of polyurethane resin, cement-type powder and aggregate
- Close thermal match to the concrete slab
- Thickness gives impact and abrasion resistance thin films lack
- Usually sealed with a urethane topcoat for cleanability and color
- Not a decorative system; texture and color are part of its function
200 °Fcontinuous service temperature one manufacturer data sheet listsHeavy-duty builds cite higher intermittent exposure
100% RHslab relative humidity one manufacturer allows at application (ASTM F2170)Far above what most epoxies tolerate
3/16 ina commonly quoted one-step build, within about 1/8 to 1/4 inchThicker builds for heavier duty
Four ways it is installed
The same chemistry can be placed several ways. We choose the method from the room, the slope, the traffic and how the space is cleaned.
Broadcast
A resin layer with aggregate broadcast into it to rejection, then sealed. This builds the most traction and hides subtle slab variation. Common in dish pits, wet kitchens and brewery cellars.
Trowel-applied
A stiffer mortar laid by hand and finished with trowels. This is how real slopes, cove bases, curbs and drain bowls are built, and it suits the heaviest-duty areas.
Slurry
A thinner filled coat used as a lighter-duty topping or as the first layer of a multi-step build. Useful where door heights or existing drains limit thickness.
Urethane cement vs epoxy, polyaspartic, tile and quarry tile
Each option has a correct place. This is how the system classes compare for a working commercial floor.
| Factor | Urethane cement | Epoxy | Polyaspartic | Ceramic or quarry tile |
|---|---|---|---|---|
| Hot water and steam | Designed for thermal shock | Thin films can blister or craze | Better as a topcoat than a thick heat-cycling base | Tile survives; grout and bedding are the weak points |
| Moisture in slab | More tolerant; tested first | Low tolerance; osmotic blistering risk | Fast cure can trap vapor | Mortar bed copes; grout absorbs |
| Food acids and fats | Strong resistance to many organic acids | Strong on many chemicals, weaker on some food acids | Good, UV-stable | Tile fine; grout stains and erodes |
| Seams and cleanability | Seamless with integral cove | Seamless with integral cove | Seamless | Grout lines hold grease and bacteria |
| Appearance options | Limited: earth tones, grays, some color | Very wide, decorative systems | Wide, color-stable | Wide |
| Install speed | Moderate; phased, often overnight | Moderate; longer cure | Fast; same-day options in light duty | Slow; multiple trades |
| Upfront cost class | Higher | Lower | Mid to higher | Mid to higher, labor heavy |
| Typical fit | Wet, hot, heavy-duty food and beverage rooms | Dry shops, warehouses, light kitchens, offices | Garages, retail, light commercial | Traditional dining rooms, some kitchens |
A general comparison of system classes, not a rating of any one product. Ask for the technical data sheet for the exact system proposed.
Moisture tolerance: the real advantage on DMV slabs
Epoxy and polyaspartic are low-permeability films. If vapor drives up through the slab and cannot escape, it can push the coating off the concrete as blisters or lifted patches. This osmotic blistering is a leading reason commercial resin floors fail early.
Urethane cement is generally more tolerant of slab moisture. One manufacturer states that its product may be applied to concrete reading as high as 100 percent relative humidity under ASTM F2170 when the concrete is clean and sound, and that epoxy in the same condition may need a vapor barrier. That is one product, and limits differ by system, so the data sheet governs.
This matters locally. Many 1950s through 1970s buildings in Alexandria, Arlington and DC have no vapor barrier under the slab. New slabs can still be shedding water. Ground-floor kitchens and basement production rooms see summer humidity swings and, in low spots, groundwater.
Tolerance is not permission to skip testing. ASTM F2170 uses probes in drilled holes to report relative humidity inside the slab, with probe depth tied to slab thickness and drying conditions. ASTM F1869 uses calcium chloride to measure vapor emission from the surface and is generally described as reflecting only the upper portion of the slab. The two measure different things. We test, read the results against the specified system, and say in writing whether a different system or a moisture-mitigation layer is the safer call.
ASTM F2170: in-slab relative humidity
probe hole, about 40% of slab depth
Concrete slab
Urethane cement is often chosen precisely because it tolerates high in-slab humidity readings.
ASTM F1869: calcium chloride on the surface
sealed dish weighs the moisture it absorbs
Concrete slab
Surface emission still matters for primers and topcoats; the data sheet sets the limits.
Pass or fail limits come from the product being installed, not from the test. Illustration, not to scale.
What a urethane cement installation actually involves
Every project differs, but a properly done floor follows the same logic. These are typical steps for the system in general.
Walk the space and measure
Drains, trenches, equipment, door thresholds and walls. We note how the room is cleaned, the hottest and wettest zones, and what the existing floor is made of.
Test the slab
Moisture testing, surface profile and hardness, and a look at cracks, joints and past repairs. This drives the system and thickness we propose.
Remove and prepare
Old tile, coatings and failed toppings come out. We diamond grind the slab to the profile the system calls for, never acid etching. Manufacturers commonly specify mechanical preparation to a defined ICRI concrete surface profile and keyed edges at terminations.
Repair and detail
Cracks, joints and spalls are repaired per the written scope. Drains, trench edges and equipment pads are prepared so the flooring terminates correctly.
Mix and place
Components are mixed in measured batches and placed within a limited working time, as a poured and gauged layer, a troweled mortar or a broadcast build. Product data sheets also set application temperature limits.
Cove, curb and drain details
Integral cove at walls and equipment bases, curbs, and slope to drains. This is hand work, and it is where installer skill shows.
Topcoat
A urethane topcoat is typically applied for cleanability, color stability and controlled texture. Some builds are left with the aggregate profile as the finish.
Cure and return to service
Cure time before foot traffic, wheeled traffic and wash-down depends on the system, thickness and room temperature. One manufacturer lists dry to touch in about half a day and full service in about one to a day and a half, but yours comes from the data sheet for your system.
Odor, ventilation and downtime in occupied facilities
Anyone running a working kitchen asks the same question first: how long are we closed, and will the building smell? Water-based urethane cement is generally lower in odor than many solvent-based coatings, and some manufacturers publish low VOC figures. It is not odor-free. Primers and topcoats have their own smell, and grinding and mixing create dust.
For occupied sites we plan around three constraints. First, isolation: temporary walls, sealed returns and negative air so dining areas, walk-in coolers and open food stay protected. Second, sequence: phasing by zone, such as prep, then the line, then the dish pit, so the kitchen runs in the sections not under work. Third, schedule: overnight and weekend windows, freight elevator and quiet-hour rules in DC and downtown Alexandria buildings, and a realistic cure schedule before the first full wash-down.
Be wary of any contractor who promises a fixed number of hours without having seen the slab, the temperature, the drains and the room count. Ask for the sequence in writing, with the specific time to foot traffic, wheeled traffic and first wash-down.
Night 1
Night 2
Night 3
Cook line
Work zone
Open
Open
Dish area
Back in use
Work zone
Open
Prep and walk-in thresholds
Back in use
Back in use
Work zone
Illustration of phasing; real sequences follow your hours, drains and cure times.
Where urethane cement belongs
It earns its cost where heat, water, acid or cold would defeat a lighter floor.
Commercial kitchens
Dish pits, fryer lines, cook lines, prep rooms and walk-in thresholds. Steam, hot oil and nightly hose-downs are the daily test.
Breweries and distilleries
Brewhouse, cellar and packaging floors see hot liquid, caustic and acid cleaners, sugars and constant water. Drain slope and cove matter more than color, and wet floors need real traction.
Food and beverage production
Bakeries, dairies, commissaries, meat and produce handling. Seamless, nonabsorbent surfaces and integral cove support sanitation programs.
Cold storage and freezers
Rooms where cold, condensation and wash cycles destroy resin films. Insulation and slab heave need review before any coating.
Wash bays and equipment rooms
Vehicle and equipment wash bays, keg and tote washing areas, and mechanical rooms with floor drains.
Loading docks and receiving
Interior dock areas with forklift traffic, standing water and winter salt tracked in.
Health-code context, coving, drains and slip resistance
The FDA Food Code is a model code. Virginia, DC and Maryland each adopt and amend their own versions, and your local health department decides what applies at plan review. In general terms, the chapter on physical facilities expects floors in food areas to be smooth and easily cleanable, with exceptions for antislip finishes. Where water flushing is used, state adoptions of the model language call for drains, floors graded to drain, and floor-to-wall junctures that are coved and sealed. Where it is not, junctures are to be coved and closed to a very small gap. Check the exact wording and edition with your local health department before you design.
USDA-regulated plants add sanitary-design expectations: surfaces that can be cleaned and sanitized, no cracks or open seams that trap residue, and drainage that keeps water from standing. Urethane cement can support these goals when installed correctly, seamless with an integral cove. That describes the system class. It is not a certification, and no contractor can promise an inspection result. Bring your plan reviewer or auditor in early.
Cove base is a curved transition from floor to wall, formed from the same material as the floor so there is no seam. It should reach the height your reviewer expects and return behind equipment and at thresholds. Drainage means slope to drains, not just a drain, and older DMV slabs are often flat or sloped the wrong way, so correcting that belongs in the written scope.
Traction depends on how the room is cleaned. Wet dynamic coefficient of friction is commonly measured under ANSI A326.3, a standard from the tile world whose 0.42 wet value is often cited as a benchmark for level interior floors walked on when wet. It was written for tile, so ask how a resin floor is being tested and what number is proposed. Too smooth is a slip hazard, and too aggressive holds soil and slows cleaning, so we match aggregate and topcoat to each room.
- Integral cove formed in the same material as the floor
- Slope to drains verified before installation
- Texture matched to wet cleaning practice and footwear
- Drain bowls, trench edges and thresholds terminated mechanically
- Ask your local health department which Food Code edition applies
- Floor at about 35 °FA walk-in or cold slab
- 185 °F wash water hits itDaily hot wash-down
- Thin, rigid film strainsEpoxy expands differently from the concrete beneath
- Urethane cement moves with the slabThick, cementitious, expands closer to concrete
The temperature example comes from the manufacturer literature cited on this page.
Honest limits, maintenance and care
It is a work floor. If your priority is a decorative or bright custom look, urethane cement will frustrate you. For customer-facing spaces where look comes first, consider metallic epoxy, flake systems or polished concrete.
It costs more than most epoxy builds because of material, thickness, labor and detailing. For a dry storage room, office or light-duty prep area, epoxy is often the smarter use of budget.
Installer skill matters more than with almost any other system. Working time is limited, temperature and moisture matter during placement, and cove, drain and threshold work is by hand. A rushed install can show trowel marks, color variation or edge failures. Ask who will actually place the material.
It is not a fix for a failing slab. Active water intrusion, heave, moving cracks and slab-on-grade freezers without under-slab protection need engineering review first.
Daily care is simple: sweep or squeegee, wash with a cleaner approved by the system manufacturer, rinse, and use soft to medium brushes rather than wire. Watch thresholds, aisles, fryer zones, drains and cove tops, and repair chips early because water and soil work into any break. A urethane topcoat can be refreshed to restore color and cleanability. How long a floor lasts depends on thickness, chemicals, impact, cleaning routine and the slab beneath it.
The decision in one paragraph
Choose urethane cement when the floor will see steam, hot water, hot oil, food acids or freezer cycles, and when slab moisture is a concern. Choose epoxy when the room is dry, lighter duty and appearance matters. Either way, test the slab first, put cove, slope, thickness, texture and topcoat in writing, and get the cure schedule before work starts.
What affects the cost, and what to ask any contractor
We do not quote numbers on a web page because the factors vary too much from one space to the next. These variables drive a proposal:
- Square footage and the number of separate rooms or zones
- Duty class and thickness
- Demolition: tile, old coatings, failed toppings and how deeply bonded
- Slab condition: cracks, joints, spalls, slope corrections and moisture mitigation
- Cove height and length, curbs, drain bowls and trench edges
- Texture level and topcoat selection
- Schedule: overnight work, phasing, freight elevators and quiet hours
- Containment, ventilation and protection of equipment and open food
- Access and logistics: stairs, loading limits and material handling
Questions
Urethane cement flooring: questions we get most
What is urethane cement flooring?
It is a heavy-duty flooring system that combines polyurethane resin with cement-type powder and aggregate. It is placed thicker than a coating, bonds to prepared concrete, and is designed for hot water, steam, grease, food acids and thermal shock. You will also see it called cementitious urethane or polyurethane concrete.
What is the difference between urethane cement and epoxy?
Epoxy is a rigid resin film that suits many dry commercial floors. Urethane cement is thicker, closer to concrete in thermal movement, more tolerant of slab moisture and better with hot wash-down and many food acids. Epoxy usually costs less and offers far more color and decorative choice.
Is urethane cement better than epoxy for a commercial kitchen?
In wet, hot or heavily cleaned areas such as dish pits, fryer lines and steam-cleaned rooms, usually yes. In a dry, light-duty prep or storage area a good epoxy can be sound and cheaper. The deciding factors are how hot, how wet and how corrosive the room is.
Can it go over damp or new concrete?
It tolerates more slab moisture than epoxy, and some manufacturers publish data allowing application on young or high-humidity concrete. We still test and compare readings to the data sheet. Sometimes a moisture-mitigation layer or a different system is the safer call.
How long does installation take, and can my kitchen stay open?
It depends on square footage, thickness, demolition and cure schedule. Many projects are phased by zone with overnight windows so the kitchen runs in areas not under work. We plan the sequence with you and put times to foot traffic, wheeled traffic and wash-down in writing.
Does urethane cement smell?
Usually less than solvent-based coatings, but it is not odor-free. Primers, topcoats and mixing add some odor and dust. We contain the work area and ventilate to protect occupied spaces and open food.
Will it meet health department requirements?
It is widely used in food facilities because it is seamless and can be coved at the walls, and it supports the cleanable-surface goals of the Food Code. Requirements vary by jurisdiction and edition, so involve your local health department or auditor early. No contractor can guarantee an inspection result.
Is it slippery when wet?
It does not have to be. Texture comes from aggregate and topcoat and is matched to how the room is cleaned. Ask how slip resistance is being tested, since ANSI A326.3 wet DCOF is a tile standard often borrowed for other hard floors.
Does it work for breweries and distilleries?
Yes. Breweries expose floors to hot liquid, caustic and acid cleaners, sugars and constant water, and they need slope to drains and a durable cove. Traction is a priority because wet resin floors can be slick.
How does it compare with quarry tile?
Quarry tile is durable but depends on grout, which stains, erodes and traps grease and bacteria, and it can crack if the bedding moves. Urethane cement is seamless with an integral cove and installs faster. Tile may still fit where tradition or a specific look is required.
What colors and finishes are available?
Options are narrower than epoxy. Expect earth tones, grays and some brighter colors in smooth, satin or textured finishes. If appearance is the main goal, another system may fit better.
How do I maintain it?
Clean daily with a cleaner approved for the system and soft to medium brushes, repair chips early, and refresh the topcoat when color and cleanability fade. Send us photos and a short description for a free estimate.
Related Systems
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