SCHӦNOX® RR Cement Based Rapid Setting Repair Mortar

SCHÖNOX RR is a cement-based rapid-setting repair mortar suitable for use on all cement- and gypsum-based substrates. It is designed for rapid-drying patchment repairs in interior areas.

SCHÖNOX RR can be installed up to 2”. Users can layer thicknesses above 1/16” up to 3/8” without aggregates and up to 2” with aggregates.

This heavy-duty, fine-grained compound is extremely fast-drying, even in higher layer thicknesses. It produces a very smooth surface with high hardness and strength and low shrinkage.

SCHÖNOX RR is rated EMICODE® EC 1^PLUS R for very low emissions. It is suitable for castor wheel loadings above 1/16“ according to DIN EN 12529.

SCHÖNOX RR is suitable for patching, filling, and leveling of:

• Concrete, cement substrates
• Gypsum substrates
• Old substrates, such as ceramic tiles
• Old water-resistant adhesive residues
• Wooden substrates
• Stair steps and wall breakouts

SCHÖNOX RR can also be used on underfloor heating systems.

Key Specifications:

• Pot Life: Approx. 15 minutes
• Ready for Foot Traffic: Approx. 30 minutes
• Ready for Covering: 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. 56 sq ft per unit at a thickness of 1/8”
• Compressive Strength (ASTM C109): 4,200 PSI / 25 N/mm² at 28 days
• Flexural Strength (ASTM C348): Approx. 1,100 PSI / 7 N/mm² after 28 days
• Initial Set (ASTM C191): Approx. 20 minutes
• Final Set (ASTM C191): Approx. 30 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.