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Westcoat EC-11 Water-Based Epoxy

Westcoat EC-11 Water-Based Epoxy is a premium quality two-component, chemical resistant, long pot life epoxy coating. It provides epoxy toughness, medium gloss and durability, with the convenience of a waterbased system.

Product Type: 2K (2 component) Coating, Primer, Sealer, Waterborne Coating

Application Area: Floor

Compatible Substrates & Surfaces: Concrete, Masonry, Metal, Wood

Features: Chemical Resistant, Durable, Fast Drying, Good Toughness, Long Potlife, Medium Gloss, Moisture Resistant, Water-based

Application Method: Brush, Roller, Spray, Wipe

Chemical Family: Epoxy & Epoxy Derivatives

Technical Data Sheet
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Knowde Enhanced TDS

Identification & Functionality

Carrier

Features & Benefits

Advantages
  • USDA/FDA Compliant
  • Water based
  • Moisture Tolerant
  • Chemical Resistant
  • Long Pot Life
  • Medium Gloss
  • Very Durable
  • Easy to Use
  • Very Fast Drying
  • No Induction Time

Applications & Uses

Application Area
Application Method
Compatible Substrates & Surfaces
Uses
  • EC-11 is designed to be used on concrete, metal, masonry or wood where a tough, chemical-resistant finish is needed.
  • EC-11 is recommended for use as a medium-duty concrete sealer for interior floors.
  • EC11 may also be used as a primer under many Westcoat Systems.
Inspection
  • The surface must be structurally sound, clean, dry and free of grease, paint, oil, dust, curing agents, laitance or any foreign material that will prevent proper adhesion.
  • The concrete should be at least 2,500 PSI and porous or rough enough to allow the product to soak in.
  • A minimum of 28 days curing time is required on all concrete.
  • Prior to starting work, test existing concrete slab for efflorescence, moisture and hydrostatic pressure.
Preparation
  • Pre-cut and clean all cracks and joints with a concrete diamond blade to at least ¼ x ¼ inch.
  • Prepare concrete to a profile equal to CSP 3-4 as specified by ICRI.
  • Methods may vary according to the condition and hardness of the concrete.
  • Other factors include the forecasted use of the surface and the environment in which it is to be installed.
  • When preparing the surface use caution when shot blasting, scarifying too aggressively, leaving grind marks or grinding too smooth.
Moisture
  • All concrete should be tested for moisture before applying a seamless coating.
  • If moisture emissions exceed 5 lbs/1000 square feet/24 hours (ASTM F1869) or if the relative humidity (RH) exceeds 75% (ASTM F2170), contact the manufacturer before application.
Mixing
  • Premix each component separately.
  • For color consistency, box all part A’s. In a clean bucket, mix 2 parts A with 1 part B (by volume) of EC-11.
  • Mix thoroughly with a low speed (400-600 rpm) drill motor for 3-4 minutes.
  • Make sure to scrape the sides and bottom of the container during mixing.
  • After mixing is completed, remove material from container within 5 minutes, as epoxy will begin to generate heat.
  • Spread immediately onto the floor.
  • As product is spread out, you will have longer working time (10-15 minutes at 70°F).
Thinning
  • Thin with water, up to 50%
  • Amount will vary depending on use.
Coverage

Will vary depending on the mil thickness applied and the porosity and texture of the surface, but in general, EC-11 will cover approximately 300-600 square feet per gallon as a primer, coating or sealer.

Applying Product
  • As a primer, spray or squeegee and backroll thinned EC-11 onto the surface.
  • Primer coat should be applied evenly and worked into the surface to help seal and avoid pinholes.
  • When thinned, apply EC-11 at a maximum of 5 mils.
  • Do not allow material to puddle.
  • As a coating or sealer, apply EC-11 within 24 hours after the primer coat.
  • Immediately after mixing, spread a strip of material onto the surface along the edges, where it will be “cut in” using a brush.
  • Pour the remaining material near the “cut in” area and spread evenly using a trowel or squeegee and back roll using a 1/4 inch nap non-shedding roller.
  • Depending on the look, thickness, chemical and abrasion resistance desired, 1 to 2 coats may be applied.
Dry Time
  • You may re-coat as soon as the surface is dry to the touch in 1 to 4 hours, but no later than 24 hours.
  • Light foot traffic may be permitted in 6 hours, normal traffic in 24 hours and vehicle traffic in 72 hours.
  • All times are based on average temperature of 70F degrees and 50% humidity.
  • Cooler temperatures will increase drying time.
Clean Up
  • Uncured material should be removed with soap and warm water.
  • Cured material should be removed mechanically or with an environmentally-safe solvent.
Limitations
  • This product is designed for professional use only.
  • Be sure to measure and mix properly. Be aware of the pot life of mixed epoxy.
  • Do not apply when temperatures are below 50°F or above 90°F.
  • Hot or cold weather will affect dry times.
  • Epoxy must be cured for a minimum of 24 hours before coming in contact with water.
  • Skid-resistant additives are available, such as CA-30 or CA-31.
  • For interior use only unless protected by a UV-resistant coating.
  • Solvents may be required in cooler weather to lower viscosity and increase coverage of 100% solids.
  • Please check with local laws governing the use of solvents.
  • Do not allow Westcoat products to freeze.

Properties

Physical Properties
ValueUnitsTest Method / Conditions
Gloss (60Degrees)68.0
Solids By Volume (Mix)43.0%
Solids By Weight (Mix)49.0%
Viscosity (Mix)223.0cPs
Viscosity (Mix)53.0KU
Weight Per Gallon (Mix)9.0
Typical Properties
ValueUnitsTest Method / Conditions
Adhesion on Concrete4.0ASTM D3359
Adhesion on Steel5.0ASTM D3359
Foot Traffic (Over Concrete, 72°F)2.0hours
Foot Traffic (Sealed Surface, 72°F)5.0hours
Hardness (4weeks)79.0Shore DASTM D2240
Heat Resistance (Constant)180.0°F
Heat Resistance (Intermittent)220.0°F
Impact Resistance (Direct)50.0in-lbs
Impact Resistance (Reverse)4.0in-lbs
Mandrel Bend (In 1/4)180.0°
Mix Ratio by Volume2:1
Pencil Hardness2H
Reducer/Clean UpWarm Soapy Water
Tack Free (Over Concrete, 72°F)1.0hours
VOC Contentmax. 25gm/l
Wheel Traffic72.0hours

Regulatory & Compliance

Certifications & Compliance
Certifications

VOC Emission Test Certificate - Certificate No: 190516-05

Technical Details & Test Data

Chemical Resistance
  Clear & Pigmented
Muriatic Acid (31.5% HCL) 2
Sulfuric Acid (50% H2SO4) 4
Sulfuric Acid (93% H2SO4) 1
Nitric Acid (10% HNO3) 2
Sodium Hydroxide (50% NaOH) 5
Bleach (sodium hypochlorite) 5
Vinegar (3-5% acetic acid) 2
Transmission Fluid 5
Gasoline 5
Brake Fluid 5
409 Surface Cleaner 5
Pine Sol Solution 5
Blood & Body Fluids 5
Iodine Solution 5
Mustard 5/5s
Ketchup 5/5
Red Wine 5/5
Acetone 4
Methyl Ethyl Ketone (MEK) 5
Xylene 5
Ethanol 5
Methanol 5

Key:

  • 5 = Best (no effect)
  • 4 = Softens (recovers)
  • 3 = Softens (no recovery)
  • 2 = Blistered (no recovery)
  • 1 = Worst Destroyed
  • s = With Stain
  • * Contact time > 5hrs = 1

Safety & Health

Health Precautions
  • Inhalation of vapor or mist can cause headache, nausea irritation of nose, throat, and lungs.
  • Avoid breathing vapors, it is strongly recommended that respirators are worn.
  • Prolonged or repeated skin contact can cause slight skin irritation.
  • All epoxies have the potential of causing skin irritations or allergic reactions.
  • Be careful not to get on skin, clothes or in eyes.
  • Gloves are strongly recommended.
  • If splashed in the eye, flush with warm water and contact a physician if blurring persists.
Slip Precaution
  • Westcoat Specialty Coatings Systems highly recommends the use of a slip-resistant additive to all coatings/systems that may be exposed to wet, oily, greasy or slippery conditions.
  • It is the end user’s responsibility to provide a flooring system that meets current safety standards.
  • Westcoat and its distributors will not be responsible for injury incurred during a slip and fall incident.
  • For the current coefficient of friction requirements, please consult your local building codes.

Packaging & Availability

Packaging

1.5 gal & 15 gal kits available.

Storage & Handling

Pot Life
60 - 90 minutes (Gel Time, 150gm, 72°F)
Shelf Life

3 years in unopened packaging