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ARCOR® EE-121 HT

1 of 54 products in this brand
ARCOR® EE-121 HT is a modified version of ARCOR® EE-121 designed to enhance temperature performance by up to 100°F (depending on the specific application). While the increased temperature resistance provides added benefits, it may exhibit slightly reduced performance in highly aggressive acidic environments compared to ARCOR® EE-121. Specifically developed for demanding chemical environments, ARCOR® EE-121 HT excels in resisting acids, methanol, ethanol, and organic solvents at elevated temperatures. The incorporation of Kevlar® fibers in the formulation results in a robust, highly cross-linked coating with exceptional flexural, thermal, and impact strength, along with outstanding wear resistance. This versatile product is suitable for use on both ferrous and non-ferrous metals as well as concrete, making it an excellent choice for immersion or non-immersion containment applications. 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 Thermal Stability, Good Toughness, High Flexural Modulus, High Impact Resistance, High Temperature Resistance, Improved Wear, 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

Features & Benefits

Labeling Claims

Applications & Uses

Markets
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 3 to 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 applications Prime with EE-121HT 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. For hand applications Prime with EE-10.

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 3 parts Base to 1-part Activator. Or by weight 100 grams base to 31 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.
ARCOR Cartridge Sprayer: Heat to 165F. Piston ‘3’; Tip Air ‘4’.
Plural Spray: 0.039-0.045 tip, 3,500-4,500 PSI, Heat to 200ºF Base, 140ºF Activator. Ambient Temperature and Humidity will affect temperature and pressure setting. Consult ARCOR.
Airless Spray: Contact ARCOR.
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). IMPORTANT: It is highly recommended that prior to overcoat that the prior coat be fully wiped with MEK or Acetone. If overcoat window is exceeded abrade surface with course sandpaper, grinder or brush blast and wipe with MEK or Acetone. By spray application recoat between 1/2-1 hours at 77ºF(25ºC). Full cure before immersion 72 hours at 77ºF(25ºC). Add 1 hour’s additional cure time for each 10ºF(-12.2ºC) below 77ºF(25ºC). Required Force Cure with heat for best performance for 2 hours at 175ºF(121ºC)/ 300ºF(148.9ºC) for 3 hours.
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 Service191.0°C
Temperature Spike Tolerance for Immersion Service (3hrs)246.0°C
Recommended Force Cure Temperature (2hrs)79.0°C
Recommended Force Cure Temperature (3hrs)149.0°C
Maximum Temperature for Dry Heat260.0°C
Temperature Spike Tolerance for Dry Heat304.0°C
Specifications
ValueUnitsTest Method / Conditions
Solid Content100.0% Volume
Viscosity100,000-150,000cps
Pot Life (at 72°F)15.0min/100gr
Coverage (at 1604/mils)1.0ft² / gal / coat
Coverage (at 149/mils)1.0m²/gal
Coverage (at 3785/microns)1.0m²/gal
Note

Coverage:1mil = 25 micron; 1 Gal = 3.785 L; 10.77ft2 = M2

Chemical Resistance
Water Excellent
Alkalis Excellent
Inorganic Acids Excellent
Organic Acids Excellent
Organic Solvents Excellent
Film Thickness

Spray Application: 1-Coat 30 to 70 mils
Hand Application: 2-3 Coats 20-25 mils
Final DFT Specified by Need: Consult ARCOR

Film Thickness

20-70 mils(.75- 1.75 mm)/coat Exterior: min. 20 mils, Immersion: min. 30 mils

Flexibility

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

Mix Ratio

3:1 by Volume (Base : Activator) 100 gm: 31 gm by weight

Packaging & Availability

Weight per Gallon
  • 10.4 lbs (4.7 KG)
  • 1.25kg (2.7lbs.)/Liter

Storage & Handling

Shelf Life
5 Years (at 13-35ºC)