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  • Overview
  • Specs
  • Coverage Rate
  • Cure
  • Chemical
  • Application

E903SL Urethane Cementitious Slurry Mix

E903SL is a bio-water based three or four component (dependent on color) urethane slurry that has outstanding wear performance and can withstand higher heat exposures than typical unmodified urethanes. The product has good thermal shock capabilities and is a good choice for hot wash down areas. The product is resistant to MVT and withstands moderate thermal shock, impact, abrasion and chemical exposures.

E903SL is an extremely durable cementitious high heat urethane slurry system. It has incredible bonding properties, as well as excellent resistance to heat and thermal shock to 200F wet heat.  With very good chemical resistance to both organic and inorganic acids and solvents,  E903SL has excellent resistance to moisture, able to resist moisture vapor transmission to 12 pounds per 1,000 sq. ft. over a 24 hour period as per ASTM E1907 .  It is also Resistant to Fungi Growth: Passes rating of 1 @ ASTM G-21

It is well designed for the food and beverage industry, food processing plants, dairy farms, industrial kitchens and wine cellars.    RECOMMENDED FOR: Resurfacing areas where a durable shock resistant surface is needed such as commercial kitchens, restrooms and locker rooms, food prep areas, and food and beverage facilities.  E903SL is ideal where hot oil spills occur or steam cleaning methods are used.

Available in a 1 unit (2 gallon, 3 part) kit that covers 40 sq’ at 1/8″ thick and a 1/4 unit kit that covers 10 sq’ at 1/8″ thick with the special colored aggregate included and 3/16″ thick when a 20-40 mesh silica is broadcast to refusal into slurry (20-40 mesh silica sold separately) and topcoated with the E903TC.  E903SL has a matte finish when used without a topcoat.  Available in 3 colors; gray, tan and tile red.

For maximum thermal shock and heat resistance add 20-40 mesh silica sand full broadcast to the E903SL while wet.  The 20-40 silica is broadcast at rate of 50 lb per 100 sq’ of floor area.  When using a silica broadcast, requires the E903TC Urethane topcoat to encapsulate the silica.

PRIMER:  Not required, however if there is a concern with possible concrete outgasing, recommend E51015

TOPCOAT: E903TC Urethane topcoat required when broadcasting 20-40 silica sand into E903SL.

COMPANION COVE BASE:  For a matching high heat 250F vertical cove base mortar, use our E903UCB urethane

 Where is E903SL Cementitious Slurry Used?

  • Concrete floors
  • Food and Beverage industry
  • Food processing plants
  • Dairy farms
  • Industrial kitchens
  • Wine cellars

Why E903SL Urethane Slurry?

  • Excellent heat and thermal shock resistance to 200F
  • Very good chemical resistance to organic and inorganic acids and solvents
  • Excellent Moisture vapor transmission to 12 pounds per 1,000 sq. ft. over a 24 hour period as per ASTM E1907
  • Resistant to Fungi Growth: Passes rating of 1 @ ASTM G-21
  • Excellent bonding characteristics
  • Rapid curing and hardners
  • Low temp application down to 45F
  • Available 3 colors gray, tan and tile red


Solids By Weight 97%
VOC 5 g/L
Colors Gray, Medium Gray & Tile Red only
Recommended Film Thickness 1/8″ and when broadcasting 20-40 mesh silica into the system, yields 3/16″
Coverage per Kit 1 Unit Kit yields 40 sq’ and a 1/4 Unit Kit yields 10 sq’ at a thickness of 1/8″
Packaging Information 1 gallon Part A, 1 gallon Part B and 35 lbs Aggregate
Mix Ratio For a 1 Unit Kit = 7.25 lbs Part A in 1 gallon container,  7.25 lbs Part B in a 1 gallon container and 29 lbs of the aggregate blend Part C + 1 lb bag dry pigment
Impact Gardner Impact, 160 in/.lb. (passed) ASTM D-4226
Shelf life 6 months in unopened containers
Hardness Shore D = 80
Viscosity When all components mixed, will produce a workable slurry
Resistant to Fungi Growth Passes rating of 1@ ASTM G-21
Finish Matte Finish when not adding silica
 Compressive Strength 8,400 psi @ASTM C-579
 Tensile Strength 1,050 psi @ ASTM C-307
 Heat Resistance Floor can withstand up to 200F of hot oil, grease, water


Coverage Per Kit 1 Unit Kit Yields 40 Sq’ And A 1/4 Unit Kit Yields 10 Sq’ At A Thickness Of 1/8″


POT Life 15 minutes
Recoat time 6 hours
Light Foot Traffic 12 hours
Heavy Foot Traffic 24 hours
Full Cure 7 days

APPLICATION TEMPERATURE: 45-80 degrees F with relative humidity below 85%


Acetic Acid 10% Passed
Nitric acid 30% Passed
Sodium Hydroxide 50% Passed
Sulfuric Acid 30% Passed
Xylene Passed


SUBSTRATE PREPARATION: The most suitable surface preparation would be a fine brush blast (shot blast) to remove all laitance and provide a suitable profile. All dirt, foreign contaminants, oil and laitance must be removed to assure a trouble free bond to the substrate. A test should be made to determine that the concrete moisture content is controlled to acceptable levels, this can be done by placing a 4’X4’ plastic sheet on the substrate and taping down the edges. If after 24 hours, the substrate is still dry below the plastic sheet, then the substrate is generally considered suitable for coatings. The plastic sheet testing is also a good method to determine if any hydrostatic pressure problems exist that may later cause disbonding. After surface preparation and before application, repair all bug holes and grind down any projections. Repair all cracks or concrete Imperfections. Surface should have a minimum tensile strength of at least 300 psi @ ASTM D-4541. Surface profile should be CSP 3-5 per International Concrete Repair Institute guidelines.

PRODUCT STORAGE: Store product in an area as to bring the material to normal room temperature before using. Continuous storage should be between 60 and 90 degrees F. Low temperatures may cause product crystallization. Do Not Freeze.

PRODUCT MIXING: This product is packaged in pre-measured kits. Use the entire kit – do not modify. Pour the part A into a five gallon mixing vessel. If adding color, add one bag of the powder pigment to the part A and mix about 15 seconds using a 1/2″ drill and jiffy type mixing paddle. Next, add the part B and again mix for about 15 seconds. Finally, gradually add all of the contents from the provided aggregate filler bag into the liquid mixture and blend thoroughly until all particles are thoroughly wetted out; this will usually take about two minutes. Use slow speed mixing equipment to avoid adding air into the mix. After mixing, transfer the mixed material to another pail (the transfer pail) and again remix. The material in the transfer pail is now ready to be applied on the prepared substrate. Remix occasionally to prevent settling of aggregate. Improper mixing may result in product failure. Make sure to apply the product immediately after it is completely mixed

For best mixing results and proper blending of parts A and B, recommend a JIFFY MIXER style drill mixer.

Product Application: Have the floor as dry as possible without any puddles of water present. To prevent lifting and delaminations, keyways (minimum 5/16″ wide x 5/16″ deep) must be cut at all terminations, joints, columns, doorways and drains. Immediately after mixing, spread the mixed material onto the floor at the desired thickness, using a GUAGE/CAM RAKE or other suitable equipment; approximately 1/8″ for a 3/16: finished floor. Apply abutting edges within 5-10 minutes to ensure a clean edge. A “wet edge” installation is imperative for larger areas to avoid lines and ridges in the finished floor. When installing, evenly apply to the desired thickness while trying to keep the cam rake lines to a minimum.

Backroll across the applied slurry with a SPIKE ROLLER roller to help settle aggregate and blend in cam rake lines.

Further roll with a LOOP/TEXTURE ROLLER perpendicular to cam rake lines over the entire floor surface to even and settle the slurry prior to broadcasting. Finally, broadcast to rejection with the desired broadcast media (aggregate or decorative flakes) onto the wet slurry.

Do not broadcast onto the wet edges until settling and backrolling is complete. Continue to broadcast until no wet areas remain. After Curing (typically around 6-8 hours for light foot traffic), remove all excess broadcast media and scrape floor as desired. A topcoat can now be applied to lock in the aggregate. Surfaces not broadcasted could have an uneven texture, color streaks or color differences and an orange peel look. Maintain temperatures and relative humidity within the recommended ranges during the application and curing process. Do not apply to cracked or unsound concrete. Do not feather edge

For best thermal shock and heat resistance and achieve a 3/16” broadcast system, broadcast 20-40 mesh silica sand into the floor. Do not broadcast the silica directly into the floor, but broadcast it upward, in a fanning motion, until complete rejection (full broadcast to refusal). It is very important to make sure the silica is broadcasted as even as possible.  When adding silica sand, will then need to add the E903TC Urethane topcoat to fully encapsulate and cover the silica. Once the floor is cured, about 6 hours later, sweep the floor for any excess aggregate, this silica can be reused.

Topcoat: The E903TC Urethane topcoat is required to encapsulate the silica if it is broadcast into the E903SL.  If silica aggregate is not broadcasted into the E903SL slurry system, then a top coat is optional but strongly recommended for optimum floor system performance.   In some areas, a suitable novolac or other types of coatings can be used, depending on specific requirements.

Cleanup For cleaning any application, equipment, water can be used. The urethane component container is best cleaned with a suitable solvent.

Floor Cleaning and Restrictions: Caution! Some cleaners may affect the color of the floor installed. Test each cleaner in a small area, utilizing your cleaning technique. If no ill effects are noted, you can continue to clean with the product and process tested.  Restrict the use of the floor to light traffic and non-harsh chemicals until the coating is fully cured (see technical data under full cure). It is best to let the floor remain dry for the full cure cycle. Dependent on actual complete system application, surface may be slippery, especially when wet or contaminated; keep surface clean and dry.


  • Color stability or gloss may be affected by high humidity, low temperature, chemical exposure or lighting such as sodium vapor lights.
  • Product is not color or UV stable.
  • Do not install on wet concrete.
  • Floors should be sloped to drain to prevent standing water or chemicals and spills should be removed as soon as possible to prevent a slipping hazard.
  • Proper mixing is important for product performance.
  • High heat exposure may discolor the surface.
  • Colors may vary from batch to batch. Therefore, use only product from the same batches for an entire job.
  • Always apply a suitable test area to evaluate the product performance and suitability prior to undertaking the entire project. Samples are available upon request.
  • Mixtures of chemicals and applications with exposures to chemicals at elevated temperatures should be thoroughly evaluated before applying.
  • Substrate temperature must be 5°F above dew point.
  • All new concrete must be cured for at least 15 days prior to application.
  • Moisture vapor transmission should be less than 12 pounds or less per 1,000 sq. ft. over a 24 hour period as per ASTM E1907.

We warrant that our products are manufactured to strict quality assurance specifications and that the information supplied by us is accurate to the best of our knowledge. Such information supplied about our products is not a representation or a warranty. It is supplied on the condition that you shall make your own tests to determine the suitability of our product for your particular purpose. Any use or application other than recommended herein is the sole responsibility of the user. Listed physical properties are typical and should not be construed as specifications. NO WARRANTY IS MADE, EXPRESSED OR IMPLIED, REGARDING SUCH OTHER INFORMATION, THE DATA ON WHICH IT IS BASED, OR THE RESULTS YOU WILL OBTAIN FROM ITS USE. N0 WARRANTY IS MADE, EXPRESSED OR IMPLIED, THAT OUR PRODUCT SHALL BE MERCHANTABLE OR THAT OUR PRODUCT SHALL BE FIT FOR ANY PARTICULAR PURPOSE. NO WARRANTY IS MADE THAT THE USE OF SUCH INFORMATION OR OUR PRODUCT WILL NOT INFRINGE UPON ANY PATENT. We shall have no liability for incidental or consequential damages, direct or indirect. Our liability is limited to the net selling price of our product or the replacement of our product, at our option. Acceptance of delivery of our product means that you have accepted the terms of this warranty whether or not purchase orders or other documents state terms that vary from this warranty. No representative is authorized to make any representation or warranty or assume any other liability on our behalf with any sale of our products. Our products contain chemicals that may CAUSE SERIOUS PHYSICAL INJURY. BEFORE USING, READ THE MATERIAL SAFETY DATA SHEET AND FOLLOW ALL PRECAUTIONS TO PREVENT BODILY HARM.