Floor Prep

Schönox SL

Cement-based rapid-drying smoothing compound, featheredge to 6 mm, ready for covering in about 20 minutes, EC1 PLUS R

Performance at a glance

Layer thickness
Featheredge to 6 mm; spotwise to 20 mm

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Construction
Cement-based rapid-drying smoothing compound
Formats
4.5 kg paper sack
Installation
Mixed with water and trowel-applied from a featheredge to 6 mm
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Availability and lead times are confirmed by your Yorkshore representative.

Overview

Schönox SL is a cement-based, rapid-drying smoothing and finishing compound for interior floors, installable from a true featheredge up to 6 mm and spot-wise to 20 mm where the old floor meets the new. Mixed at about 1.9 L of water per 4.5 kg sack, it has a pot life of around 20 minutes at 20 °C and is ready for foot traffic and for the covering after about 20 minutes regardless of thickness. Consumption is roughly 1.3 kg/m² per mm.

SL goes over concrete, cement and gypsum substrates, old ceramic tile, water-resistant adhesive residues and wood, and under Schönox moisture mitigation systems. It carries the EMICODE EC1 PLUS R very-low-emission licence, qualifies for LEED EQ 2 low-emitting materials, suits castor wheels to EN 12529 and subfloor heating, and is covered by the Schönox system warranty.

Applications and performance

Performance

Suitability depends on configuration, substrate, installation and maintenance. Confirm project-specific requirements with a specialist.

Specifications

Download specifications
Values from manufacturer documentation. Confirm current data on the technical data sheet before specifying.
Property ValueTest method
Construction and format
ConstructionCement-based rapid-drying smoothing compound—
Formats4.5 kg paper sack—
InstallationMixed with water and trowel-applied from a featheredge to 6 mm—
Performance and specification data
Type Cement-based, rapid-drying smoothing and finishing compound, interior —
Layer thickness Featheredge to 6 mm; spotwise to 20 mm —
Pot life approx. 20 minutes at 20 °C —
Ready for foot traffic after approx. 20 minutes —
Ready for covering after approx. 20 minutes (up to 20 mm) —
Material consumption approx. 1.3 kg/m²/mm—
Mixing ratio approx. 1.9 L water per 4.5 kg —
Application temperature Not below 5 °C floor temperature —
Substrate moisture limits Cement screeds ≤ 2.0 CM-% (heated ≤ 1.8); calcium sulphate ≤ 0.5 CM-% (heated ≤ 0.3) —
Emission class EMICODE EC1 PLUS R, very low emission; LEED EQ 2 low-emitting materials —
Castor wheel suitability Suitable EN 12529
Packaging 4.5 kg paper sack —
Storage life 6 months, cool and dry —
Environmental product declaration Self-declaration EPD-DIV-2013311-EN —

Documents and certifications

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