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ARCOR® S-15 is a solvent-free bisphenol F coating specifically designed for both immersion and non-immersion service, particularly in aggressive and alkali environments. This coating forms a durable, chemical-resistant barrier on ferrous metals and concrete surfaces. With its low viscosity and excellent flexibility, ARCOR® S-15 is well-suited for large tank linings and secondary containment concrete applications. It can be applied by hand or spray on both metals and concrete surfaces. The extended pot-life and overcoat window of this coating make it an ideal choice for larger surface area applications using airless or plural component spray methods. Choose ARCOR® S-15 for its reliable protection, chemical resistance, and versatility in handling various immersion and non-immersion service requirements, ensuring long-lasting durability and performance. ARCOR Epoxy Technologies can tailor make or reformulate the product to suit customer needs. Please reach out if you need a custom formulated product!

Chemical Family: Epoxy & Epoxy Derivatives

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

Application Area: Secondary Containment Concrete, Tank Lining

Application Method: Brush, Roller, Spray

Compatible Substrates & Surfaces: Concrete, Metal

Features: Abrasion Resistant, Acid Resistant, Alkali Resistant, Chemical Resistant, Good Flexibility, Good Toughness, High Surface Area, Long Potlife, Low Viscosity, Solvent Resistant, Water Resistant

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Identification & Functionality

Features & Benefits

Labeling Claims

Applications & Uses

Markets
Application Method
Compatible Substrates & Surfaces
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 with ARCOR™ S-15, S-30 Prime or ARCOR™ EE-11 Prime 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. Prime with ARCOR™ EE-10 or S-15.

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 34 grams activator. Mix thoroughly to produce an even colored and streak-free material.

Thinning

Add 5-7.5% by volume(6-12 oz.) Acetone or MEK to extend pot-life and/or thin for cold weather application.

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:0.527-0.531 tip, 3,000-3,500 PSI, Heat to 150ºF Base, 90ºF Activator. 30 mesh screens. Heated hose @ 120ºF
Airless Spray: 0.027-0.035 tip, 4,000-4,500 PSI(45:1). Add 6-12 oz/gal of MEK or Acetone.(Caution: Short Pot-Life)
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 6-14 hours at 77ºF (25ºC). If overcoat window is exceeded abrade surface with course sandpaper, grinder or brush blast. By spray application re-coat between 2-14 hours at 77ºF. Full cure before immersion 72 hours at 77ºF. Add 30 hours additional cure time for each 10ºF below 77ºF. Subtract 12 hours of cure time for each 10ºF above 77ºF. Force Cure with heat for best performance for 4 hours at 200ºF (93ºC), 12 hours at 150ºF ( 66ºC).

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 Service63.0°C-
Temperature Spike Tolerance for Immersion Service (3hrs)93.0°C-
Maximum Temperature for Dry Heat163.0°C-
Specifications
ValueUnitsTest Method / Conditions
Coverage80-160ft² / gal / coat-
Solid Content100.0% Volume-
Viscosity10,000-20,000cps-
Pot Life (at 72°F)35.0min/kg-
Chemical Resistance
Water Excellent
Alkalis Excellent
Inorganic Acids Good
Organic Acids Good
Organic Solvents Good
Film Thickness

6 -8 mils(.15-.20 mm)/coat Splash: 2 coats, Immersion: 2-3 coats

Flexibility

Very Good Very good with Polyester Cloth; 1.5 oz/ft2 (.5 KG/M2)

Mix Ratio

2:1 by Volume (Base:Activator) 100 gm: 34 gm by weight

Packaging & Availability

Weight per Gallon

11.2 lbs (5.08 KG, 231 cu.in.)

Storage & Handling

Shelf Life
5 Years (at 13-35ºC)