Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Ready-to-Use Product Features
- Product Highlights
MICOROX® 287 PRIMER is a three component, water reducible epoxy primer and sealer for use on green or damp concrete.
- Features
- Adheres to damp concrete or masonry.
- Eliminates concrete dust.
- Eliminates the 28 concrete cure time.
- Fast curing.
- Prevents shrinkage cracks.
- No odor.
- Reduces downtimes and construction time.
- Improves concrete. strengths
- Roller, brush or spray application.
Applications & Uses
- Markets
- Compatible Substrates & Surfaces
- Applications
MICOROX® 287 PRIMER is designed for use with green concrete. The major advantage of using this primer is that it does not inhibit the adhesion of subsequently applied toppings. The new concrete cures completely while the overlay remains securely locked to it without the cracking, blistering or disbonding problems associated with topping green concrete. It also provides excellent adhesion to existing concrete.
- Usage
- Immediate overlaying of concrete new surfaces.
- Primer for new or old concrete floors.
- A substitute for concrete curing compounds.
- To bond coatings to new concrete.
- To strengthen existing concrete.
- Over new cementitious grouts or caps used to pitch grade or fill existing surfaces.
- Surface Preparation
- When used as a topcoat for MICOROX® flooring systems: To remove trowel marks and present an even, level surface for 1882 SEALER, use a floor grinder with medium stones and vacuum resulting dust before applying 1882 Sealer.
- When applied as a concrete floor sealer, 1882 SEALER bonds existing surfaces with an appropriate primer. Substrate must be exposed by acid-etch or mechanical means for secure bonding.
- Application
- Mix the MICOROX® 287 Primer. 287 PRIMER is provided in proportioned kits containing resin and hardener. The entire contents of the resin container is emptied into the hardener container and mixed with a drill for 2-3 minutes. After resin and hardener are combined, clean water is added slowly with mixing until the application viscosity is achieved. (3 quarts of water for the 1.5 gallon kit and 2.0 gallons for the 4.2 gallon kit.No induction required and the primer may be used immediately.
- Pour the 287 onto the surface in a ribbon about 8 to10 inches wide along the starting edge of the wall. Roller, brush or squeegee the 287 out over the surface to a thin coat of about 6.4 mils wet film thickness.
- When overlaying with Micor Floor Resurfacers, Linings or Coatings allow the 1287 to cure to a tackfree finish. Generally 6 hours at 77°For longer at lower temperatures.
Working Life : Two hour at 77° F.
Coverage : 250 sq. ft/gal.
- Temperature Limitations
During the installation and cure, maintain surface temperatures between 60° F and 80° F. Lower temperatures will affect cure time.
Properties
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Thickness (Wet Film Thickness) | 6.4 | mils | — |
| Thickness (Dry Film Thickness) | 2.5 | mils | — |
| Viscosity (77° F) | 35.0 | cps | — |
| Weight Per Gallon | 8.75 | lbs. per mixed gallon | — |
| Flashpoint | min. 100 | °C | Closed Cup |
| Service Time | 6 - 8 | hours | — |
| Cure Rate (at 25°C/77°F, Tack free) | 4 | hours | — |
| Cure Rate (at 25°C/77°F, Hard and dry) | 16 | hours | — |
Safety & Health
- Precautions
Contact with liquids Part A and B can cause irritation. Wear protective clothing. Cover hands with protective cream and/or gloves. Wear chemical splash goggles. Use only with adequate ventilation.
Packaging & Availability
- Packaging
New Concrete: Use standard Portland cement (type 1) or high early strength (type 3) concrete without additives. hardeners, curing sealers. agents or Surface must be set so it can be walked on (usually overnight) and must be free of surface dirt, oil spills, etc.
Existing Concrete . Clean and prepare the concrete by mechanical means and /or acid-etch until all foreign matter has been removed. A rough surface is desired to provide an effective bonding profile. Sweep out, vacuum or absorb any standing water. A damp surface is acceptable however standing water will prevent penetration of the material.