MicroTek™ One Coat is a single-component, self-bonding, cement-based, extremely thin overlay for interior concrete surfaces. MicroTek One Coat was designed to yield an exceptionally smooth tight-troweled finish that can provide a new “blank canvas” for decorative concrete floors. It may also be placed vertically on interior walls, creating the look of Venetian plaster. Application is accomplished by trowel or “magic trowel”. MicroTek One Coat is prepared with gray cement or white cement that may accept SC Color packs.
MICROTEK SURFACE PREP
The principles for surface preparation for MicroTek One Coat are aligned with other cement-based overlays. The substrate must be:
- Clean: The surface must be free of dust, dirt, oil, grease, paints, glues, sealers, curing agents, efflorescence, chemical contaminants, rust, algae, mildew, and other foreign matter that may serve as a bond breaker.
- Cured: Any concrete must be sufficiently cured to have sufficient hydration, approximately 7 to 14 days depending on temperature and humidity.
- Sound: No system should be placed on a substrate that is flaking, spalling, or has hibernating spalling.
- Profiled: Floors – Proper profile should follow the standard established by the International Concrete Repair Institute (ICRI) Technical Guideline No. 03732 for Concrete Surface Profile (CSP). The established profile is categorized as CSP-1 through CSP-3. The most common means to properly profile many concrete slabs is through the use of SCR (see SCR TDS). Some concrete slabs that are hard-troweled or that are not sound may require more aggressive profiling achieved through diamond grinding or shot blasting.
Customarily, profiling is not required for application over another cement-based overlay. Walls – Customarily, profiling is not required for vertical application on a substrate. The use of SCR is recommended on concrete. A painted surface may require deglossing or sanding. Drywall surfaces require finishing and priming prior to application.
TESTING DATA
- COMPRESSIVE STRENGTH ASTM C-109 | 28 days 4278 PSI (29495 kPa)
- FLEXURAL STRENGTH ASTM C-348 | 28 days 995 PSI (6860 kPa)
- TENSILE STRENGTH ASTM C-190 | 28 days 440 PSI (3033 kPa)
- ABRASION RESISTANCE ASTM D-4060 | 28 days <.50%
- MOSAIC SHEAR ANSI A-118.4 | 28 days 280 PSI (1930 kPa)
MIX RATIO
5 to 6 quarts (4.7 – 5.7 liters) water to one 40-pound (18.1 kg) bag of MicroTek One Coat
Optional: 0.5 pound (227 g) Color Pack – 30 standard colors (see SC Color TDS)
COVERAGE
Depending upon application and substrate One 40-pound (18.1 kg) bag of MicroTek One Coat = 200 to 300 ft²
*NOTE: Finish coat coverage range varies on the desired texture being created
SHELF LIFE
Under normal conditions: when kept dry and moisture-free, out of direct sunlight, the shelf life of an unopened container is twelve (12) months from the date of purchase. Storage must be under the roof and off the floor. Avoid temperature extremes. Rotate inventory to maintain products that is within limits.
