SCHÖNOX® US Cement Based Self‑leveling Compound
- EMICODE EC 1PLUS R: very low emission
- For interior and exterior use
- Water-and frost resistant
- Self-leveling, low shrinkage
- Coverage: approx. 55–65 sq ft per unit at a thickness of 1/8"
Product Information
SCHÖNOX US is a cement-based self-leveling compound designed for use on cement- and gypsum-based substrates. This compound is designed for fast leveling in interior and exterior areas. It can be installed above 1/8” up to 3”.
SCHÖNOX US is water- and frost-resistant and may be used on both interior and exterior surfaces. It has no moisture vapor emission limitations on properly prepared concrete.
This low-shrinkage, pumpable compound is easy to apply. Users can layer thicknesses above 1/8“ up to 1.5“ without aggregates or layer thicknesses up to 3“ with aggregates.
SCHÖNOX ZM exceeds minimum Ff/Fl requirements of ASTM and ACI when installed in accordance with the guidelines. It has been tested in accordance with ASTM C1708.
This compound is rated EMICODE® EC 1PLUS R for very low emissions. It is suitable for castor wheel loadings above 1/16“ according to DIN EN 12529.
SCHÖNOX US is suitable for use on:
- Concrete, cement substrates
- Rapid-drying cement screed systems
- Gypsum substrates
- OSB board, plywood (well screwed or bonded) prior to installing flexible coverings
- Old substrates, such as ceramic tiles and terrazzo
- Old, water-resistant adhesive residues
SCHÖNOX US is suitable for filling, smoothing and leveling of substrates under:
- Flexible coverings
- Wood floors, layer-thickness above 1/4” (interior only)
- Ceramic tiles
- Underfloor heating systems
SCHÖNOX US can also be used for filling, smoothing, and leveling of unheated, cement-based substrates under SCHÖNOX Moisture Mitigation Systems.
Key Specifications:
- Pot Life: Approx. 40 minutes at 68°F
- Ready for Foot Traffic: Approx. 4 hours
- Ready for Covering:
- For floor covering products: After approx. 24 hours up to 1/4" thickness, after 48 hours up to 3/8” thickness
- For tile or stone: after approx. 4 hours
- Working Temperature: Not below 41°F
- Environmental Product Declaration (EPD): EPD-DIV-2013311-EN
- LEED—May help contribute to LEED certification of projects in the following categories:
- EQc2: Low-Emitting Materials – 1 to 3 points
- MR Credit 1.1: Building Reuse-Maintain – Existing Walls, Floors and Roof – up to 3 points
- MR Credit 1.2: Building Reuse-Maintain – Existing Interior Nonstructural Elements – 1 point
- VOC Content: 0g/l (calculated), SCAQMD 1113
- Shelf Life: 12 months, unopened
- Coverage
- Approx. 55–65 sq ft per unit at a thickness of 1/8” (depending on substrate conditions and aggregate used)
- Compressive Strength (ASTM C109):
- 4,250 PSI / 25 N/mm² / 300 kg/cm2 after 28 days
- 2,000 PSI / 12 N/mm2 / 135 kg/cm2 after 1 day
- Flexural Strength (ASTM C348): Approx. 1,000 PSI / 6 N/mm² after 28 days
- Tensile Strength (ASTM C1583) at 1/8”: Above 350 PSI / 2 N/mm2 after 3 days
- Initial Set (ASTM C191): Approx. 80 minutes
- Final Set (ASTM C191): Approx. 95 minutes
- UL-classified in accordance with ASTM E84 (ANSI/UL 723): Flame Spread 0; Smoke Development 0
*All values are approximate, are subject to local climatic fluctuations based upon conditions at 70°F with atmosphere of less than 65% relative humidity following the recommended mixing ratio. Do not install underlayment or topping before the substrate has dried thoroughly
Usage
Mixing Ratio:
Mix each 25kg/55 lbs bag with 4.5 liters/4.7 quarts of water
If SCHÖNOX US is extended with dry, clean aggregate (aggregate is added last) at a layer thickness of 1.5”–3“, type and amount of aggregate used will affect product performance. As qualities of locally available aggregates vary, we recommend performing tests prior to use on a larger scale.
Do not overwater! Foam while mixing, or settling of the sand aggregate while placing, indicates overwatering.
Recommended Working Method:
- Using a clean mixing drum, add SCHÖNOX US to cold, clean water to form a homogeneous mixture.
- Mix thoroughly for approx. 3 minutes using a heavy-duty drill (min. 600 RPM) is recommended to obtain a lump-free mix.
- Pour the mix and spread using a smoothing trowel. Even surfaces are easily achieved using a pin leveler. In higher thicknesses using a spike roller is recommended. Contact to vertical structures should be avoided by putting in an edge strip.
- If a second layer of leveling compound is to be applied, prime the first layer with SCHÖNOX VD (diluted 1:1 with water) after drying. The maximum layer thickness must not be exceeded in case of two-layer applications. The second layer must not exceed the layer thickness of the first layer.
- Protect curing SCHÖNOX US layers from high ambient temperatures, direct sunlight, and draughts.
- Clean tools in water immediately
Specifications
| Category | Concrete Patch |
|---|---|
| Brand | Schönox |
| Condition | new |
| Manufacturer Model Number | T47 - Silica Aggregat |