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ARCOR® EE-121 HT Prime

1 of 54 products in this brand
ARCOR® EE-121 HT Prime is a modified version of ARCOR® EE-121 HT, designed to enhance temperature performance by up to 100ºF, depending on the specific application. While the increased temperature resistance offers improved performance, there may be a slight reduction in highly aggressive acid environments compared to ARCOR® EE-121 HT. Like its counterpart, ARCOR® EE-121 HT Prime is specifically formulated for demanding chemical environments, particularly acids, methanol, ethanol, and organic solvents. The incorporation of Kevlar® fibers results in a robust, highly cross-linked coating that provides exceptional resistance to chemicals, as well as high flexural, thermal, and impact strength. Additionally, it offers excellent wear resistance. ARCOR® EE-121 HT Prime is suitable for use on both ferrous and nonferrous metals, as well as concrete, for both immersion and 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. 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 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.
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). 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 re-coat between 1/2-1 hours at 77ºF (25ºC). Full cure before immersion 72 hours at 77ºF (25ºC). Add 1 hours 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-
Coverage20-80ft² / gal / coat-
Chemical Resistance
Water Excellent
Alkalis Excellent
Inorganic Acids Excellent
Organic Acids Excellent
Organic Solvents Excellent
Film Thickness

20-40 mils(.50- 1.0 mm)/coat

Mix Ratio

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

Packaging & Availability

Weight per Gallon

10.2 lbs (4.62 KG)

Storage & Handling

Shelf Life
5 Years (at 13-35ºC)