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ARCOR® EE-121 Prime

1 of 54 products in this brand
ARCOR® EE-121 Prime is a solvent-free, high 3.6 functionality epoxy Novolac coating specifically designed for aggressive chemical and high-temperature resistance. This exceptional coating is suitable for both immersion and non-immersion service, providing reliable protection in demanding environments. ARCOR® EE-121 Prime creates a tough, chemical-resistant coating on both ferrous and non-ferrous metals for full immersion applications and on concrete surfaces for secondary containment purposes. It is intended to be used as a prime coat as needed in conjunction with ARCOR® EE-121 or EE-121 HT, further enhancing the overall performance and durability of the system. ARCOR® EE-121 Prime is the ideal choice for achieving superior chemical resistance and high-temperature protection in various industrial 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, Primer, Solventless & High Solids Coating

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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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.

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.

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 60 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: 0.031-0.039 tip, 2,500-3,500 PSI, Heat to 180ºF Base, 140ºF 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 re-coat while material is still soft, but tack-free, between 1-8 hours at 77ºF (25ºC). 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 1-4 hours at 77ºF. Full cure before immersion 72 hours at 77ºF. Add 1 1/2 hours additional cure time for each 10ºF below 77ºF. Force Cure with heat for best performance for 1 1/2 hours at 250ºF (121ºC).

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-
Viscosity60,000-85,000cps-
Pot Life (at 72°F)15.0min/100gr-
Coverage80.0ft² / gal / coat-
Roller Good Quality1/8"nap-
Chemical Resistance
Water Excellent
Alkalis Excellent
Inorganic Acids Excellent
Organic Acids Excellent
Organic Solvents Excellent
Film Thickness

20 mils(.51 mm)/coat

Mix Ratio

2:1 by Volume (Base:Activator) 100 gm: 60 gm by weight

Packaging & Availability

Weight per Gallon

10.8 lbs (4.9 KG)

Storage & Handling

Shelf Life
5 Years (at 13-35ºC)