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ARCOR® EE-121 is a solvent-free, high 3.6 functionality epoxy Novolac coating specifically engineered for both immersion and non-immersion service. Unlike traditional Epoxy Novolac Resin based coatings, this advanced formulation is designed to excel in aggressive chemical environments and withstand elevated temperatures. ARCOR® EE-121 is specifically tailored to handle tough chemical environments, including acids, methanol, ethanol, and organic solvents. By integrating Kevlar® fibers, it creates a robust, highly cross-linked coating that exhibits exceptional chemical resistance, flexural strength, thermal stability, impact resistance, and wear resistance. This versatile coating is suitable for use on ferrous and nonferrous metals as well as concrete, making it a reliable choice for both immersion and non-immersion containment applications. Choose ARCOR® EE-121 for superior protection and performance in demanding chemical environments, ensuring long-lasting durability and resistance to various corrosive substances. ARCOR Epoxy Technologies can tailor make or reformulate the product to suit customer needs. Please reach out if you need a custom formulated product!

Product Type: Epoxy Coating, Solventless & High Solids Coating, Top Coat

Application Area: Floor, Flue Gas Desulfurization (FGD), Pipes, Pump, Tank Lining

Features: Acid Resistant, Alkali Resistant, Chemical Resistant, Excellent Solvent Resistance, Good Abrasion Resistance, Good Flexibility, Good Toughness, High Temperature Resistance, Water Resistant

Application Method: Brush, Roller, Spray

Chemical Family: Bisphenol Epoxy Resins, Bisphenol F Type Epoxy, Epoxy & Epoxy Derivatives, Novolac Epoxy

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Identification & Functionality

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Applications & Uses

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Application Method
Cure Method
Surface Preparation

Steel surfaces are to be abrasive blasted with chloride free abrasive. Exterior applications to SSPC SP-10 Near White metal finish. Immersion applications to SSPC SP-5 White metal 5+ mil profile. Grind flat all burrs, weld seams, radius sharp edges. Fresh blasted ferrous surfaces to be primed immediately to prevent oxidation of surface. For hand application Prime with EE-121 Prime.

Concrete surfaces should be degreased if oil and grease contamination is present. Degreased surface shall be high pressure washed, acid etched and high pressure washed again so surface is clean and free of all grease, oils and surface laitance. Existing coatings should be abrasive blasted to clean concrete. Prime with EE-121 Prime.

Mixing

Thoroughly mix Activator into Base with mixing stick or drill with low speed mixing blade scraping sides and bottom of container or mixing board. Mix by Volume 2-parts Base to 1-part Activator. Or by weight 100 grams Base to 50 grams Activator. Mix thoroughly to produce an even colored and streak-free material.

Application

Brush: medium to stiff bristle of sufficient quality that bristles do not pull out and stick in coating. Trim or tape to <1” nap.
Roller: good quality 1/8” nap.
Plural Spray: 0.029-0.031 tip, 3,000-3,500 PSI, Heat to 130ºF Base, 110ºF Activator.
Airless Spray: Not Recommended
Conventional Spray: Not Recommended
All spray equipment should employ traps to prevent water and oil from contaminating coating and screens to prevent particulate contamination.

Application Temperature
Keep between 55 to 95ºF(17 to 35ºC). Substrate: Keep between 45 to 105ºF(7 to 40ºC). The difference in temperature of the substrate and the material should never exceed 10ºF(5ºC). Substrate shall be a minimum of 5ºF(3ºC) above dew point. Do not apply if relative humidity exceeds 90%. If necessary heat metal prior to surface preparation using electric heater or heat lamp. Never use gas, oil or kerosene heaters as they will leave a greasy residue on metal surface. For best results keep all material in warm area overnight(75ºF+, 24ºC) for ease of mixing. If necessary base component of material can be heated by microwave for 30-45 seconds for a 1 KG Base unit or by warm water bath. Heat activator by warm water bath only. If necessary let material cool before application.
Overcoat / Cure Time

By brush, roller or squeegee recoat while material is still soft, but tack-free, between 1-3 hours at 77ºF(25ºC).

Clean Up

Clean tools immediately after use with M.E.K., Acetone, 98+% Isopropyl Alcohol or similar

Properties

Temperature Properties
ValueUnitsTest Method / Conditions
Maximum Temperature for Immersion Service177.0°C
Temperature Spike Tolerance for Immersion Service (3hrs)232.0°C
Recommended Force Cure Temperature (2hrs)121.0°C
Maximum Temperature for Dry Heat260.0°C
Temperature Spike Tolerance for Dry Heat304.0°C
Specifications
ValueUnitsTest Method / Conditions
Solid Content100.0% Volume
Viscosity120,000-180,000cps
Pot Life (at 72°F)15.0min/100gr
Coverage26-80ft² / gal / coat
Chemical Resistance
Water Excellent
Alkalis Excellent
Inorganic Acids Excellent
Organic Acids Excellent
Organic Solvents Excellent
Film Thickness

20-60 mils (.51- 1.53 mm)/coat

Flexibility

Good; Very Good with Polyester or Fiberglass Mat; 1.5 oz/ft2 (.5 KG/M2)

Mix Ratio

2:1 by Volume (Base : Activator) 100 gm : 50 gm by weight

Packaging & Availability

Weight per Gallon
  • 10.7 lbs. (4.9 KG)
  • 2.8 lbs. (1.3 KG)/Liter

Storage & Handling

Shelf Life
5 Years (at 13-35ºC)