Sika Level-399 XXL is a ready-to-use levelling compound designed for smoothing and levelling interior floors and surfaces. It is suitable for both new construction and renovation projects where a flat, stable substrate is required before tiling, flooring, or other finishes are applied.
High-flow consistency ensures easy spreading and self-leveling across large areas
25 kg bag covers approximately 10–15 m² at standard application thickness
Compatible with underfloor heating systems when installed according to manufacturer guidelines
Quick setting time allows for fast progression to the next construction phase
Das zeichnet Sika Level-399 XXL aus
The XXL formulation provides extended working time compared to standard levelling compounds, making it particularly suitable for larger floor areas where a single batch must cover more ground. The grey colour offers a neutral base that blends seamlessly with most finishing materials.
Ideal für...
Professional tradespeople and DIY installers working on interior floor levelling in residential and commercial buildings. Suitable for new-build projects, renovation work, and surface preparation before installing tile, laminate, or vinyl flooring.
Anwendung von Sika Level-399 XXL
Mix the compound with clean water according to the manufacturer's instructions, pour onto the prepared substrate, and spread evenly using a notched trowel or squeegee. Allow to set undisturbed for the recommended curing period before applying the final floor covering.
Sika is a Swiss-based manufacturer of construction chemicals, specializing in adhesives, sealants, and levelling compounds for professional and DIY use.
It is a levelling compound for smoothing and levelling interior floors and surfaces before installing tile, laminate, or vinyl flooring.
Yes, Sika Level-399 XXL is compatible with underfloor heating systems when installed according to the manufacturer's guidelines.
A 25 kg bag covers approximately 10 to 15 square metres at standard application thickness, depending on the substrate condition.
Mix with clean water according to the manufacturer's instructions, pour onto the prepared substrate, and spread evenly using a notched trowel or squeegee.
The product carries a standard manufacturer's warranty. Please refer to the Sika product documentation for specific terms and duration.
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