What is Weberfloor LVL 1040?
Weberfloor LVL 1040 is a cement-based, self-leveling floor screed designed for leveling and smoothing interior floors before the installation of final floor coverings. With an application thickness range of 1–40 mm, it is suitable for both minor surface corrections and more substantial leveling requirements. Its excellent flow properties allow it to create a smooth, even surface while significantly reducing application time.
One of its key advantages is its rapid setting performance, allowing foot traffic approximately two hours after application under normal conditions.
Key Benefits of Weberfloor LVL 1040
Weberfloor LVL 1040 offers numerous advantages for professional flooring projects:
- Suitable for application thicknesses from 1 mm to 40 mm
- Self-leveling technology creates smooth and uniform surfaces
- Designed for areas exposed to heavy pedestrian traffic
- Fast-curing formula allows walking after approximately 2 hours
- Reduces the risk of cracking and surface blistering
- Compatible with underfloor heating systems
- Suitable for pump application on large floor areas
- Provides an ideal substrate for a wide range of floor coverings
Typical Applications
Weberfloor LVL 1040 is commonly used for:
- Interior floors subjected to heavy foot traffic
- Bathrooms and other wet-area flooring projects
- Surface leveling before ceramic tile installation
- Floor preparation before PVC, vinyl, carpet, and parquet installation
- Residential and commercial renovation projects
- Concrete and cement screed refurbishment
Suitable Substrates
The product can be applied to:
- Cement-based screeds
- Concrete slabs
- Precast concrete surfaces
- Properly prepared underfloor heating screeds
For unusual substrates, technical evaluation is recommended before application.
Surface Preparation
Proper substrate preparation is essential for optimum performance.
- The surface must be clean, dry, sound, and structurally stable.
- Remove dust, grease, paint residues, adhesives, and loose materials.
- Repair damaged or uneven areas using suitable repair mortars.
- Vacuum cleaning is recommended to eliminate fine dust.
- Apply an appropriate primer at least 30 minutes before screed installation.
Compatible Floor Coverings
After the recommended drying period, the following floor coverings may be installed:
- Ceramic and porcelain tiles
- Laminate flooring
- Engineered and wooden parquet
- Carpet and carpet tiles
- PVC and vinyl flooring systems
Areas Where Use Is Not Recommended
Weberfloor LVL 1040 should not be used in:
- Swimming pools and continuously submerged areas
- Steam rooms and hammams
- Exterior applications
- Industrial floors with heavy machinery traffic
- Wooden subfloors
- Exposed final-finish flooring applications
Application Conditions
- Substrate and ambient temperature: +5°C to +30°C
- Do not apply on frozen surfaces or where frost is expected.
- Avoid application during extreme heat, strong airflow, or excessive humidity.
- Protect freshly applied material from rapid drying.
Mixing and Application
- Mix 20 kg of Weberfloor LVL 1040 with approximately 4.8 liters of clean water.
- Blend using a low-speed mixer until a homogeneous mixture is achieved.
- Pour the prepared material onto the floor.
- Spread evenly across the surface.
- Fill any remaining voids using a smoothing trowel.
- Allow the product to self-level naturally.
- Use a spiked roller when necessary to eliminate trapped air bubbles.
- For pump applications, the working width should not exceed 6 meters.
Consumption
Approximate consumption:
- 1.5–1.8 kg/m² per 1 mm thickness
Technical Specifications
| Property | Value |
|---|
| Product Type | Powder |
| Color | Grey |
| Application Thickness | 1–40 mm |
| Mortar Density | 2.0 g/cm³ |
| Mixing Ratio | 20 kg powder / 4.8 L water |
| Working Time | Approximately 15 minutes |
| Walkability | Approximately 2 hours |
| Flow Diameter | 260–300 mm |
| Compressive Strength | ≥ 22 N/mm² |
| Flexural Strength | ≥ 4 N/mm² |
| Bond Strength | ≥ 2 N/mm² |
Waiting Time Before Floor Coverings
10 mm Application Thickness
- Ceramic tiles: 16 hours
- PVC, linoleum, and carpet: 24 hours
- Carpet tiles: 24 hours
- Parquet flooring: 24 hours
30 mm Application Thickness
- Ceramic tiles: 3 days
- PVC, linoleum, and carpet: 7–10 days
- Carpet tiles: 7–10 days
- Parquet flooring: More than 14 days
40 mm Application Thickness
- Ceramic tiles: 3 days
- PVC, linoleum, and carpet: 10–14 days
- Carpet tiles: 10–14 days
- Parquet flooring: More than 14 days
Important Recommendations
- Do not use in permanently submerged areas.
- Not suitable for outdoor applications.
- Do not apply on unstable or weak substrates.
- Not intended as a final wearing surface.
- Follow the specified water ratio exactly.
- Do not add foreign materials or additives to the mix.
- Expansion joints should be respected and maintained.
Frequently Asked Questions
What application thickness does Weberfloor LVL 1040 support?
The product can be applied between 1 mm and 40 mm thickness.
How soon can the floor be walked on?
Under normal conditions, the surface can be opened to foot traffic after approximately 2 hours.
Is Weberfloor LVL 1040 compatible with underfloor heating systems?
Yes. It is fully compatible with properly installed underfloor heating systems.
Can it be used outdoors?
No. Weberfloor LVL 1040 is designed exclusively for interior applications.
Which floor coverings can be installed over it?
Ceramic tiles, carpet, PVC flooring, laminate flooring, engineered wood, and parquet can all be installed after the recommended drying period.