E1875 Epoxy Resin | Chemical Resistance | 100% Solids

CURE TIME

Temperature             Minimum Recoat            Maximum Recoat            Foot Traffic              Heavy Traffic

90°F                          6 Hours                           18 Hours                   12-16 Hours                36-48 Hours

75°F                          8 Hours                           24 Hours                   16-24 Hours                48-72 Hours

50°F                        24 Hours                            48 Hours                   36-48 Hours                 72-96 Hours

Chemical Resistance

Splash/Spill Intermittent Immersion 

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, the substrate should be examined for moisture.  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 1,000 square feet per 24 hours.  Test for relative humidity in concrete floor slabs using Probes according to ASTM F-2170.  This test measures 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 material must be removed.  The prepared surface must be clean, dry and structurally sound.  We 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.

Old concrete surfaces must be structurally sound.  Any unsound areas must be repaired prior to proceeding with the resinous installation.  For proper patching and repairing, use E615 and/or E1000 with graded aggregate.  Remove existing paint and loose concrete by rough sanding, sandblasting, high pressure water cleaning, shot blasting or grinding.  In some cases where plant conditions allow, a stripper may be used to remove excessive build-up of paints or sealers.

APPLICATION PROCEDURE

For best results E1875 must be applied over the E55 or E1703 while they have a slight tack.  E1875 is normally used as a 10-40 mil coating.  A porcupine roller is recommended to break any air bubbles in the E1875 when rolling.  For exterior use or higher film build, seed dry E1875 with fine aggregate.  E1875 can be applied as an aggregate filled epoxy mortar by hand trowel.   For use as a vertical coating, contact Gulf Coast Paint for recommendations.

If maximum recoat time is exceeded, sand and solvent wipe before applying next coat.

NOTE:  For safety and product curing, proper ventilation is necessary throughout application and cure.  When using pigmented Finish Coats, always be sure the batch numbers are all the same to provide a uniform color.  Do not apply if the surface temperature is within 5° of the Dew Point.  PC-1875 Base and Hardener should be stored at 75° – 85°F to help maintain a lower, rollable viscosity.  Do not apply when material is cold.  If a non-skid finish is required, prepare a test patch for owner approval prior to application.  These systems are designed for application by professional experienced flooring contractors.

CAUTIONS

Poly-Chemcure E1875 is not a fire hazard; the flash point is above 250°F.  However, under conditions of fire it will burn and release potentially toxic fumes.  The Base portion is relatively inert physiologically.  The Hardener portion is corrosive and contains amines and related materials.  These can cause irritation and possibly chemical burns to the skin and eyes.  This is also true for mixtures of Base and Hardener.  Wear safety glasses, gloves, and protective clothing when using Poly-Chemcure E1875.  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.

SEE SAFETY DATA SHEET FOR FULL SAFETY PRECAUTIONS.

FOR PROFESSIONAL AND INDUSTRIAL USE ONLY

KEEP AWAY FROM CHILDREN. NOT FOR RESIDENTIAL USE     

What is E1875 epoxy resin?

E1875 is a 100% solids, two-component cycloaliphatic epoxy resin designed for concrete restoration and protection in highly corrosive environments. It forms a dense, durable coating that resists extreme chemical exposure and heavy industrial wear.

What makes E1875 different from other epoxy coatings?

E1875 stands out because it is:

• 100% solids (no solvents) for maximum durability
• Highly resistant to acids, alkalis, salts, and solvents
• Designed for extreme chemical environments, not just general-use floors
• Capable of curing in damp conditions and temperatures as low as 40°F

How chemical resistant is E1875 epoxy?

E1875 provides exceptional chemical resistance, including:

• Up to 70% sulfuric acid
• Up to 37% hydrochloric acid (HCL)
• Up to 50% sodium hydroxide
• Resistance to fuels, solvents, and industrial chemicals

This makes it ideal for the harshest industrial and containment environments.

Where is E1875 epoxy resin typically used?

E1875 is commonly used in:

• Chemical processing plants
• Wastewater and sewage facilities
• Mining and pulp & paper mills
• Petroleum refineries
• Secondary containment areas
• Concrete tanks, sumps, and drainage systems

Can E1875 be used for secondary containment systems?

Yes. E1875 is frequently used in secondary containment areas because of its high resistance to aggressive chemicals and spills, making it ideal for protecting concrete from contamination.

What surfaces can E1875 be applied to?

E1875 is designed primarily for concrete surfaces, including:

• Floors
• Ramps and loading docks
• Storage silos
• Pump pads and containment areas

Is E1875 epoxy self-leveling?

Yes. E1875 is a self-leveling epoxy, allowing for a smooth, uniform finish when applied properly.

How durable is E1875 epoxy coating?

E1875 is engineered for extreme durability, offering:

• High abrasion resistance
• Strong impact resistance
• Compressive strength up to 10,000–12,000 psi

This makes it suitable for heavy industrial traffic and harsh conditions.

What is the recommended thickness and coverage?

• Recommended thickness: 10–40 mils
• Coverage: approximately 40–160 sq ft per gallon

For help ensuring you have the right quantities for YOUR project reach out today at 630-675-4509 or sales@exteriorcoatings.com.

How long does E1875 take to cure?

Cure times depend on temperature:

• Recoat: 6–24 hours
• Foot traffic: 12–48 hours
• Heavy traffic: 36–96 hours

Note: Application temperatures range from 40F-100F. Hotter temperatures will cure faster than slower temperatures. For questions about recoat and cure times reach out to us at 630-675-4509 or sales@exteriorcoatings.com.

Can E1875 epoxy be applied in cold or damp conditions?

Yes. E1875 can:

• Cure in temperatures as low as 40°F
• Be applied to damp concrete surfaces

This makes it highly versatile for challenging job site conditions.

Does E1875 epoxy contain solvents or strong odors?

No. As a 100% solids epoxy, E1875 epoxy:

• Contains no solvents
• Produces little to no solvent odor during application
• Is VOC compliant

Is E1875 safe for food or industrial environments?

Yes. E1875 meets USDA requirements, making it suitable for use in food processing and industrial facilities when applied properly.

What industries benefit most from E1875 epoxy?

Industries that benefit include:

• Chemical manufacturing
• Oil & gas
• Wastewater treatment
• Heavy industrial facilities
• Food processing plants