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

E903TC Urethane Topcoat

E903TC is a bio-water based four component (when using pigment) urethane topcoat for use with E903SL that has been broadcasted with aggregate. The E903SL / E903TC Urethane Floor Coating System has very good thermal shock capabilities to 200F wet heat and is a good choice for hot wash down areas and ideal where hot oil spills occur or steam cleaning methods are used in commercial kitchens, restrooms and locker rooms, food prep areas, and food and beverage facilities.

The system has good chemical resistance, fast cure and good abrasion resistance and provides good anti slip protection.  The product is resistant to MVT and withstands moderate thermal shock, impact, abrasion and chemical exposures.

The E903SL / E903TC Urethane Floor Coating System has very good chemical resistance to both organic and inorganic acids and solvents,  It 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.

Available in a 1 unit (2 gallon, 3 part) kit that covers 160 sq’ to 170 sq’ and 1/4 unit kit that covers 40 sq’ t0 42 sq’ when applied as topcoat over the E903SL Urethane broadcast with 20-40 mesh silica to refusal into slurry (20-40 mesh silica sold separately) and topcoated with the E903TC.  E903TC has a matte finish and is available in 3 colors; gray, tan and tile red.

PRIMER:  For use over E903SL Urethane Slurry

TOPCOAT: None recommended

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

 Where is E903TC Urethane Used?

  • Topcoat over E903SL as part of high heat resistant coating system
  • Concrete floors
  • Food and Beverage industry
  • Food processing plants
  • Dairy farms
  • Industrial kitchens
  • Wine cellars

Why E903TC Urethane Topcoat?

  • Excellent heat and thermal shock resistance to 200F wet heat
  • 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
  • Good anti-slip surface
  • Excellent bonding characteristics
  • Rapid curing and hardners
  • Low temp application down to 45F
  • Available 3 colors gray, tan and tile red and 2 package sizes


Solids Approximately 95% solids (liquids mixed with aggregate)
VOC 5 g/L
Colors Gray, Medium Gray & Tile Red only
Recommended Film Thickness Yields 3/16″ total system thickness when E903TC used as topcoat with E903SL with full 20/40 silica sand broadcast
Coverage per Kit Kit yields 160 sq’ to 170 sq’ when used as topcoat over E903SL with full 20/40 silica sand broadcast
Packaging Information 1 Unit kit = 1 gallon Part A, 1 gallon Part B and 35 lbs Aggregate
Mix Ratio 1 Unit Kit = 7.25 lbs Part A in 1 gallon container,  7.25 lbs Part B in a 1 gallon container and 9.2 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 form a spreadable liquid
Resistant to Fungi Growth Passes rating of 1@ ASTM G-21
Finish Matte Finish when not adding silica
 Compressive Strength 5,900 psi @ASTM C-579
 Tensile Strength 1,250 psi @ ASTM C-307
 Flexural Strength 2,900 psi @ASTM C-580
 Heat Resistance Floor can withstand up to 200F of hot oil, grease, water


Coverage Per Kit Kit Yields 160 Sq’ To 170 Sq’ When Used As Topcoat Over E903SL With Full 20/40 Silica Sand Broadcast


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

APPLICATION TEMPERATURE: 45-85 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: For applications over the E903SL All dirt, debris, dust and foreign contaminants must be removed to assure a trouble free bond to the broadcasted slurry.

PRODUCT STORAGE: Store product in an area as to bring the material to normal room temperature before using. Continuous storage should be between 50 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 and 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 cured broadcasted slurry. 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: Immediately after mixing, pour mixed material on the floor in ribbons. Using a flat squeegee, move the material uniformly across the surface. Roll and back-roll material using a 1/4″ nap roller to a uniform appearance. Do not over work.

Topcoat: In some areas, a suitable novolac or other types of UV resistant coatings can be used, depending on specific chemical resistance or UV stability 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.