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5 mm, self-levelling, low-emission, easy to apply, cementitious waterproofing and underlayment system with smooth surface and single-color matt finish
Residential and light commercial protection coating system for indoor applications and horizontal surfaces, suitable for light-duty in low traffic areas, with moderate chemical resistance
Waterproofing and levelling compound for residential and light commercial flooring, basements, domestic/private rooms, below-grade areas, technical rooms
| Layer | Description | Material | Consumption | |
|---|---|---|---|---|
 | Substrate | Concrete / cementitious screed | ||
| 1 |  | Primer | KÖSTER SL Primer | 0.10 kg/m² |
| 2 |  | Underlayment | KÖSTER SL Leveltight | 6.50 kg/m² |
| 3 |  | Primer | KÖSTER CT 215 Universal Floor diluted 10 to 25 % with water. The amount of water depends on the substrate porosity. | 0.25 kg/m² per layer (approx. 0.20 resin + 0.05 water) |
| 4 |  | Topcoat | KÖSTER CT 215 Universal Floor. Matt finish and good cleanability | 0.25 kg/m² |
Comments
| Material | Substrate conditions | Application conditions | Mixing regime | Application tools | Pot life / Recoating interval / Ready for traffic | |
|---|---|---|---|---|---|---|
| Concrete / cementitious screed | ||||||
| 1 | KÖSTER SL Primer | Clean, sound and visible dry Tensile strength > 1.5 N/mm² Substrate relative humidity: < 4 % CM Device | Material temperature 15–25 °C Substrate and ambient temperature 5–30 °C | Shake vigorously until homogeneous | Rubber Squeegee 40 cm (CT 922 002) Resin Roller 25 cm (CT 961 002) Resin Roller 10 cm (CT 913 001) | Pot life: Recoating interval: 20 °C: 3 h |
| 2 | KÖSTER SL Leveltight | ICRI CSP 2–3 (depending on the expected traffic) by grinding, milling, sandblasting, brushing or shot blasting Clean, sound and visible dry Tensile strength > 1.5 N/mm² Substrate relative humidity: < 4 % CM Device | Material temperature 15–25 °C Substrate and ambient temperature 10–30 °C | Add 5,0 l pottable water to a clean container Add powder while constantly mixing Electric single paddle mixer (300–400 rpm) Mix for 3 min and scrape the sides | Gauging Rake (CT 915 001) Metallic Spike Roller 50 cm (CT 929 001) | Pot life: 20 min. Recoating interval: Water-vapor permeable resin-based flooring and coatings: 20 °C: 24 h - no limit |
| 3 | KÖSTER CT 215 Universal Floor diluted 10 to 25 % with water. The amount of water depends on the substrate porosity. | ICRI CSP 2–3 (depending on the expected traffic) by grinding or shot blasting Clean, sound and visible dry Tensile strength > 1.5 N/mm² Substrate relative humidity: < 4 % CM Device | Material temperature 15–25 °C Substrate and ambient temperature 10–30 °C Substrate and material temperatures must be = 3 °C above dew point during application and for 24 h. | Electric single or double paddle mixer (300–400 rpm) Mix for 2 min Transfer to a clean container Add water Mix for an additional 1 min and scrape the sides | Rubber Squeegee 40 cm (CT 922 002) Resin Roller 25 cm (CT 961 002) Resin Roller 10 cm (CT 913 001) | Pot life: 60 min. Recoating interval: 10 °C: 24 - 72 h 20 °C: 12 - 48 h 30 °C: 8 - 48 h |
| 4 | KÖSTER CT 215 Universal Floor. Matt finish and good cleanability | Previously primed, scratchcoated, sandbroadcast or coated surface. Clean, sound and visible dry. Tensile strength > 1.5 N/mm² Substrate relative humidity: < 4 % CM Device | Material temperature 15–25 °C Substrate and ambient temperature 10–30 °C Substrate and material temperatures must be ≥ 3 °C above dew point during application and for 24 h. | Electric single or double paddle mixer (300–400 rpm) Mix for 2 min Transfer to a clean container Mix for an additional 1 min and scrape the sides | Rubber Squeegee 40 cm (CT 922 002) Resin Roller 25 cm (CT 961 002) Resin Roller 10 cm (CT 913 001) | Pot life: 60 min. Recoating interval: 10 °C: 24 - 72 h 20 °C: 12 - 48 h 30 °C: 8 - 48 h Ready for light traffic (hours) / fully cured (days): 10 °C: 72 h / 7 d 20 °C: 48 h / 5 d 30 °C: 24 h / 3 d |
| Material | Layer | Description | R-Class DIN 51130 |
|---|---|---|---|
| CT 215 R 11 | Topcoat | 0.2 kg/m² KÖSTER CT 215 Universal Floor with 2% KÖSTER Anti-Slip Granulate 20 | R 11 |
| CT 215 R 12 | Topcoat | 0.2 kg/m² KÖSTER CT 215 Universal Floor with 2.5% KÖSTER Anti-Slip Granulate 20 | R 12 |
| CT 215 R 10 | Topcoat | 0.2 kg/m² KÖSTER CT 215 Universal Floor | R 10 |
