Description Uses Sika® Level-325 is suitable for: Concrete surfaces Cement substrates Rapid-drying cement screed systems OSB/Plywood (only for use with flexible coverings) Ceramic tiles, terrazzo, or natural stone surfaces Characteristics / Advantages Self-leveling properties Ideal for leveling both new and old floors Suitable for both interior and exterior applications Can be applied manually or via pump Excellent base for all types of residential and commercial flooring Compatible with subfloor heating systems Easy to install High strength Low shrinkage Can withstand caster wheel loading if applied at a thickness greater than 1/8” (3.2 mm) No moisture vapor emission rate (MVER) limits on properly prepared concrete Approvals / Standards LEED V4.1 California Department of Public Health (CDPH) Standard Method v1.2: Private Office, School Classroom, and Residential Product Information Chemical Base: Cement-based, polymer-modified binder system with fillers Packaging: 55 lb (24.9 kg) bag Appearance / Color: Gray powder Shelf Life: 12 months from the production date when stored correctly in its original, sealed packaging Storage Conditions: Store in a dry location at temperatures between 41–86°F (5–30°C). Protect from moisture; discard if damp Technical Data Compressive Strength: 1 day: 2,000 psi (14 MPa) 7 days: 3,500 psi (24 MPa) 28 days: 5,300 psi (37 MPa) (ASTM C-109) Flexural Strength: 28 days: 1,500 psi (10 MPa) (ASTM C-293) Tensile Adhesion Strength: 3 days at 1/8″ thickness: 500 psi (3.4 MPa) (ASTM C-1583) Thermal Resistance: Suitable for underfloor heating systems Application Information Mixing Ratio: 4.75 qts (4.5 L) of water per bag Coverage: 26 ft² (2.3 m²) at 1/4” (6 mm) thickness per bag (coverage may vary depending on surface profile, porosity, and material waste) Layer Thickness: Neat application: 1/8” (3 mm) to 3” (76 mm) Extended application: 1/4” (6 mm) to 4” (102 mm) Product Temperature: 65–75°F (18–24°C) Ambient Air Temperature: 41–86°F (5–30°C) Substrate Temperature: 41–86°F (5–30°C) Relative Air Humidity: <75% Pot Life: Approximately 20 minutes Note: The application temperature will impact the pot life: Temperatures above 73°F (23°C) reduce pot life and working time. Temperatures below 73°F (23°C) extend pot life and working time. Waiting / Recoat Times Walk-on Time: 4 hours Suitable for Overcoating with: Non-moisture-sensitive floor coverings: 4 hours Moisture-sensitive floor coverings: 24 hours (up to 3/8” or 9.5 mm thickness)* Note: Actual times may vary based on ambient conditions, substrate, material thickness, and relative humidity. Ensure that the moisture content of the substrate is within the required level before applying the subsequent floor finish or adhesive. Always refer to the specific product data sheets for the floor finish or adhesive being used.
