company tower banner
Onyx Concrete Coatings Company Logo

Onyx Concrete Coatings High Clear Epoxy Fast

Onyx Concrete Coatings High Clear Epoxy Fast is a two component, high performance cycloaliphatic 100% solids clear epoxy which provides a durable, high gloss finish which beautifies concrete for years. The epoxy chemistry provides excellent bonding characteristics and its low viscosity allows deep penetrating into a concrete substrate. It can be used as a clear top coat, for chip floors or as the resin of choice when applying color quartz. High Clear Fast Epoxy cures in four hours at 70°F (About half the time of most conventional epoxy systems).

Product Type: 2K (2 component) Coating, Top Coat

Application Area: Floor Coverings

Compatible Substrates & Surfaces: Concrete

Features: Chemical Resistant, Durable, Excellent Light Stability, Fast Cure, Good Bonding Strength, High Gloss, Low Viscosity, Odorless, Self-Priming

Application Method: Roller

Chemical Family: Epoxy & Epoxy Derivatives

  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Advantages
  • Essentially odorless
  • Self-priming
  • VOC = 0, 100% Solids
  • High gloss
  • Withstands heavy traffic
  • Chemical resistant
  • Good light stability for a clear epoxy
  • No amine blush
  • Can be applied over ten day old concrete
  • Rapid cure

Applications & Uses

Application Area
Application Method
Compatible Substrates & Surfaces
Applications

Applications

  • Manufacturing
  • Food Preparation
  • Electronic Plants
  • Aisle ways
  • Automotive
  • Aisles
  • Color quartz floors
  • Retail
  • Aerospace
  • Power Plants
  • Warehouses
  • Clean rooms
  • Schools
  • Paint chip floors
  • Garage floors
  • Docks

Concrete Preparation

Before the coating is applied, the concrete must be:

  • Clean – Contaminants removed
  • Profiled – Surface etched
  • Sound – Cracks repaired

Mechanical methods are preferred for preparing concrete prior to coating application. Shot-blasting, diamond grinding, scarifying, and scabbling are all acceptable methods. The concrete profile should approximate 60-80 grit sandpaper after preparation.

Patching

Voids, cracks, and imperfections will be seen in finished coating if the concrete is not patched correctly. Patch the concrete with Epoxy Grout. After the patching material has cured, diamond grind the patch flush with the concrete.

Mixing

The ratio of High Clear Fast Epoxy is 2 to 1. That is, two parts of A (resin), to one part of B (hardener). Generally, three mixed gallons is ideal for application. Mix the following with a drill and jiffler mixer.

  • Pre-mix Part A for 30 seconds. If using the 15 gallon kit, pour out 2 gallons into an empty mixing bucket. (The three gallon kit allows the Part A bucket to be used as the mixing bucket, since the Part A comes in a three and a half gallon bucket.)
  • Add one gallon of part B and mix for 60-90 seconds.
  • Immediately apply to the floor. High Clear Fast Epoxy in mass has a short pot life. Once poured out on the floor, 15-20 minutes of working time can generally be expected.

Application Process

High Clear Fast Epoxy, for a nominal 12 to 16 mil coating system is applied in two coats. For estimation, use 135 S/F (12 mils) to 100 S/F (16 mils) as a coverage rate. The following is for a 16 mil system:

Always apply in descending temperatures. Concrete is porous and traps air. In ascending temperatures (generally mornings), the air expands and can cause out gassing in the coating. It is safer to apply coatings in the late afternoon, especially for exterior applications. Optimum ambient temperature should be between 65- 90°F during application.

  1. Mix three gallons of resin using above mixing instructions.
  2. Apply approximately 200 S/F per gallon by immediately pouring out on surface in a ribbon, while walking and pouring at the same time until bucket is empty.
  3. Using a window squeegee on a pole, pull High Clear Fast Epoxy over substrate. As a first coat over bare concrete, pull resin as thin as possible (about 400SF/Gal.) while still wetting out concrete and uniformly covering
  4. Using a 3/8” non-shedding phenolic (plastic) core paint roller, roll the coating forwards and backwards.
  5. Lastly, backroll in the opposite direction from step 5.
  6. Apply second coat (135 SF/Gal. ) by repeating steps 1-6 within 24 hours.

Product Limitation

Ground level concrete slabs emit moisture vapor. The allowable moisture emissions for concrete is 3 lbs. 1000 S/F over a twenty-four hour period. If moisture is above this level, then blistering and delamination of coating may occur. A calcium chloride test should be performed to determine concrete moisture level. If moisture levels exceed the 3 lb. limit, a concrete moisture vapor control system should be used first before applying coating system. Please contact Onyx technical department for approved systems. Coating systems are susceptible to cracking if the concrete moves or separates below the coating. Hence, joint and crack treatment should be reviewed prior to coating application. As a general rule, control joints (saw cuts) and random cracks should be saw cut or chased first then filled with Epoxy Grout or similar approved hard epoxy product. Construction joints (two slabs which meet and hence move) should be treated. After the coating has been applied and cured, saw cut through the coating over construction joints.

Cleanup

High Clear Fast Epoxy while in a liquid state may be cleaned up with water and degreaser. Otherwise a strong solvent may be required while High Clear Fast Epoxy is setting up.

Properties

Typical Properties
ValueUnitsTest Method / Conditions
Compressive Strength18800.0psiASTM C 579
Flexural Strength2270.0psiASTM D 790
Tensile Strength1560.0psiASTM D 638
Bond to Concrete (Concrete fails at this point)350.0psiASTM D 4541
Coefficient of Frictionmin. 0.6ASTM D 2047
Taber Abrasion59.0mgsASTM D, 4060 CS 17, Wheels
FlammabilitySelf-extinguishingASTM D 635
Hardness82.0Shore DASTM D 2240
Flash Pointmin. 200°FASTM D 93
Volumetric Ratio2 to 1
Solids Content100.0%
Coverage (16 mils)100.0S/F
Application Temperature (5° above the dew point)65.0 - 90.0°F
ThinningNot required
Pot Life10.0 - 15.0minutes
Working Time on Floor15.0 - 20.0minutes
Cure Time (Walking)4.0hours
Cure Time (Traffic)24.0hours
Critical Recoat Time24.0hours

Regulatory & Compliance

Chemical Inventories
Compliance

USDA Food and Beverage - Meets requirements.

Safety & Health

Safety

Consult High Clear Fast Epoxy safety data sheet. Avoid High Clear Fast Epoxy contact with eyes and skin. Some individuals may be allergic to epoxy.

Packaging & Availability

Packaging Type
Colors

High Clear Fast Epoxy is available in clear only. Note: Gen- erally, clear sealers look good on new concrete or concrete in good condition. The discoloration, stains, cracks and patches on older concrete show through clear sealers. When concrete is in bad shape, it is best to apply Epoxy Base Coat which is available in a variety of standard colors.

Storage & Handling

Shelf Life

12 months.