E1900/E1901 Polyaspartic Clear Topcoat | 40-50 Min Work Time | Quick Cure | High Solids | Apply 40°F – 100°F | Chemical Abrasion Impact Resistant

COVERAGE RATE

CURE SCHEDULE

SLOW SET OPTION

FAST SET OPTION

APPLICATION TEMPERATURE: 40ºF – 100ºF Do not apply to surfaces below 40°F or above 100°F. Relative humidity should not exceed 85%.  Do not apply over dew or frost. The surface temperature should be at least 5°F above the dew point.

CHEMICAL RESISTANCE, SPLASH and SPILL TESTING

Not recommended for Immersion Conditions.

MIXING AND APPLICATION INSTRUCTIONS

SURFACE PREPARATION

In all cases of surface preparation, the pH should be checked.  A pH reading of 7.0 to 8.5 is acceptable.  Also, a Water

Dissipation Test should be made on random areas of the floor to determine if the proper degree of porosity Has been achieved.  Before the installation of any Gulf Coast Paint products, the substrate should be examined for moisture. Test Test for moisture vapor transmission using ASTM F-1869 Standard Test Method for Measuring Moisture Vapor Emission Rate of Concrete Subfloor using Anhydrous Calcium Chloride.  The maximum allowable rate is 3 lbs. per 1000 square feet per 24 hours.  Test for relative humidity in concrete floor slabs using Probes according to ASTM F-2170.  This test mea-sures the presence relative humidity of the slab below the surface.  The maximum relative humidity should be below 80%.

New concrete must be cured at least a minimum of 28 days before applying a coating.  On-grade slabs must have moisture vapor barrier in place.  All laitance, sealers, efflorescence, chemical contaminants, grease, oil and other foreign matter must be removed.  The prepared surface must be clean, dry and structurally sound.  Recommend mechanical preparation by means of shot blasting or diamond grinding to achieve a CSP-2 OR CSP-3 profile, in accordance with the International Concrete Repair Institute (ICRI).  The profile should reflect something similar to a 60-100 grit sandpaper.  If the substrate is not properly prepared and the appropriate profile is not achieved, failure of the product to adhere to the substrate may occur.

Apply over appropriate primers or intermediate coats.  Not designed to be applied directly to concrete.

MIXING INSTRUCTIONS

Stir each component to a uniform consistency. Do not vary proportions. PC-1900 is prepared by mixing 1 part BASE (Part A) to 1 part HARDENER (Part B) with a slow speed explosion proof variable speed drill with a Jiffy mixer. Be sure material is thoroughly mixed together. Do not thin E1900. Use as supplied.

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

Use of an improper drill mixer can result in curing problems if the hardener also called activator (Part B) is not thoroughly blended with the resin (Part A) which can cause some areas on your floor to remain soft and not harden properly.  DO NOT USE A PAINT MIXER.  Most mixing problems described above can be traced back to using a paint mixer..  DO NOT HAND MIX as this approach can result in the same problems as using a paint mixer.

****IMPORTANT NOTE AFTER MIXING:****

Once parts A&B are thoroughly mixed, immediately pour 100% of all mixed product on the floor in a ribbon pattern, S or W shape over the area you want that amount of product to cover. The risk of leaving product in the bucket is that it will become hard and reduce the working time by a minimum of 50% and may harden and start smoking in the bucket before you get back to it.

NOTE:  Always wear protective gloves and clothing while mixing and applying E352P.  Do not get on skin.

APPLICATION PROCEDURE

Best method of application is conventional or airless spray use up to 10% Thinner.  Flush equipment thoroughly with MEK solvent before using and use a moisture trap on the air supply.

Surfaces must be free from all oil, grease, water or other foreign matter.  Surface should be dry and above 50°F and rising.  Relative humidity should not exceed 85%.  CT-352 is moisture sensitive during application and initial cure.  Do not apply if surface temperature is within 5° of Dew Point.  Not recommended on floors, susceptible to hydrostatic pressure.   For safety and proper curing, proper ventilation is necessary throughout application and cure.  Any foodstuff and furnishings in the application area should be removed prior to application.  When using pigmented Intermediate Coats, be sure the batch numbers are all the same to provide a uniform color.

E1900 Clear polyaspartic coating is a top coat and is normally not recommended directly over unprimed surfaces. Apply over appropriate primers, intermediate coats, or decorative floors. Surfaces must be free from all oil, grease, water or other foreign matter. Surface should be dry and above 40°F. Relative humidity should not exceed 85%. E1900 is moisture sensitive during application and initial cure. Do not apply if surface temperature is within 5° of Dew Point. Not recommended on floors susceptible to hydrostatic pressure.

Best method of application is to pour material on the floor in a ribbon and spread with a flat blade squeegee.  Immediately backroll spread material with 18 inch roller, 1/4”–3/8” nap.  Maintain a wet edge. Do not over roll and entrap air.

Coverage over flake is typically 110-200 square feet per gallon and coverage over a smooth coating is typically 250-400 square feet per gallon.  For safety and proper curing, proper ventilation is necessary throughout application and cure. When using pigmented Intermediate Coats, be sure the batch numbers are all the same to provide a uniform base color.

Do not apply to surfaces below 50°F or above 100°F.   Do not apply over dew or frost.  The surface temperature should be at least 5°F above the dew point.  Relative humidity should not exceed 85%.

Refer to the cure schedule as a guideline to follow, in addition we strongly recommend to test the coating before recoating or topcoating. This is done by pressing your thumb on the coating in multiple places to ensure a fingerprint impression is not visible. If there is no impression visible, then coating the floor can be done. Note, colder or hotter than 75 degrees can affect the curing time schedule  

CAUTION DANGER

E1900 is flammable.  Keep away from all sources of ignition during mixing, application and cure.  The use of goggles, fresh air masks or NIOSH approved respirators, protective skin cream and protective clothing is a recommended standard practice when spraying.  This product is sold without warranty as to performance expressed or implied.  Users are urged to make their own tests to determine the suitability for their particular conditions.

LIMITATIONS:

• Do not apply over frost surfaces or extremely high humidity conditions.
• Do not apply over expansion joints.
• Do not apply if the surface temperature is within 5° of the dew point.
• Partially used containers must be reclosed tightly to prevent moisture in air from reacting with material and forming a tough skin.  Skin can be removed and remaining material used.  Be sure to stir.

SEE MATERIAL SAFETY DATA SHEET FOR FULL SAFETY PRECAUTIONS.  FOR PROFESSIONAL AND INDUSTRIAL USE ONLY  KEEP AWAY FROM CHILDREN.  NOT FOR RESIDENTIAL USE NOTICE TO BUYER: DISCLAIMER OF WARRANTIES AND LIMITATIONS ON OUR LIABILITY 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 SAFETY DATA SHEET AND FOLLOW THE PRECAUTIONS TO PREVENT BODILY HARM.

What is E1900 / E1901 Polyaspartic Clear Topcoat?

E1900 / E1901 is a high-solids, UV-stable polyaspartic clear coating designed for use as a protective topcoat over epoxy, concrete, and decorative flooring systems. It delivers excellent chemical resistance, abrasion resistance, and long-term durability while maintaining a high-gloss, non-yellowing finish.

What makes E1900 / E1901 different from other polyaspartics?

Unlike most polyaspartics that have very short working times, E1900 / E1901 is engineered for:

• Extended working time (40–50 minutes) for better install control for the slow set
• Dual cure speed options (fast set or slow set)
• Low temperature application down to 40°F

This makes it much more installer-friendly and forgiving, especially on larger floors.

What is the working time (pot life)?

E1900 / E1901 offers:

• Slow set: ~40–50 minutes
• Fast set: ~20–30 minutes

This extended pot life allows contractors to:

• Maintain a wet edge
• Reduce roller marks
• Handle larger pours without rushing

Note: temperature can affect curing schedule. For free application assistance, reach out to us at 630-675-4509 or [email protected].

How fast does it cure?

E1900 / E1901 gives you flexibility depending on project needs:

Fast Cure Option

• Recoat: ~2–6 hours
• Foot traffic: ~3–6 hours

Slow Cure Option

• Recoat: ~4–12 hours
• Foot traffic: ~7–12 hours

This allows you to choose between:

• Speed (fast return to service)
• Workability (longer install time)

Note: hotter or colder temperatures can affect cure schedule.

Can it be applied in cold temperatures?

Yes. E1900 / E1901 can be applied in temperatures as low as 40°F, making it ideal for:

• Cold-weather installs
• Early morning or late-season jobs
• Unheated spaces

What surfaces can it be applied over?

E1900 / E1901 bonds well to:

• Concrete floors
• Epoxy coatings
• Flake and quartz systems
• Metallic epoxy systems

It is commonly used as a clear protective topcoat in both residential and commercial environments.

Is E1900 / E1901 UV stable?

Yes. It is an aliphatic polyaspartic, meaning it:

• Will not yellow over time
• Maintains clarity over decorative systems
• Performs well in sunlight-exposed areas

How durable is the coating?

E1900 / E1901 is built for high performance:

• Excellent abrasion resistance
• Strong impact resistance
• High chemical resistance to oils, fuels, and cleaning agents

This makes it ideal for:

• Garages
• Warehouses
• Retail floors
• Industrial environments

What is the recommended coverage rate?

Typical coverage is:

• 110–420 sq ft per gallon depending on thickness (3–12 mils)

For assistance figuring out best quantity for YOUR project reach out to us at 630-675-4509 or [email protected].

Is it easy to mix and apply?

Yes. E1900 / E1901 features:

• Simple 1:1 mix ratio
• No induction time required
• Smooth application with squeegee and backroll

When should I choose E1900 vs E1901?

Typically:

• E1900: Longer working time
• E1901: Fast Set Speed

Can it be used for exterior applications?

Yes, with proper prep and system design. Because it is UV stable, it performs well outdoors, but like most polyaspartics:

• Not recommended for constant immersion
• Substrate prep and moisture conditions are critical

Is it resistant to chemicals and spills?

Yes. E1900 / E1901 resists exposure to:

• Gasoline and oils
• Brake fluid and hydraulic fluid
• Salt, water, and cleaning chemicals

How soon can I drive on it?

• Light foot traffic: Same day
• Vehicle traffic: Typically 24–48 hours, depending on temperature and cure speed

What are common applications?

E1900 / E1901 is ideal for:

• Garage floor coatings
• Decorative flake systems
• Metallic epoxy floors
• Commercial and industrial flooring
• Showrooms and retail spaces

Why is longer working time important in a polyaspartic?

Most polyaspartics cure very quickly, which can cause:

• Roller lines
• Uneven finish
• Installation stress

E1900  solves this by giving installers:

• More time to work the material
• Better leveling and appearance
• Reduced installation errors

Is E1900 / E1901 better than epoxy as a topcoat?

Yes—when used as a topcoat:

• More UV stable (won’t yellow like epoxy)
• Faster cure times (fast set)
• Longer working time (slow set)
• Better abrasion and chemical resistance

It is often used as the final protective layer over epoxy systems.