Self-leveling compound Weber 25kg

Self-leveling compound Weberniv primo for floor resurfacing and leveling

Primo self-leveling compound smooths and levels floors up to 10 mm. This compound is only suitable for specific surfaces: cement screed, concrete slab, or existing tiles, using a Primo primer.

Self-leveling compound should never be used on wood or chipboard floors, nor on Marcel iron plates.

Technical description

• - Weight: 25 kg
• - Color: gray
• - Made in France: Yes
• - Composition: cement, redispersible resin, silica sands, specific additives
• - Powder density: 1.1
• - Particle size: up to 0.5 mm
• - Super self-levelling: perfect finish
• - Reduced recovery times
• - Specializing in major construction projects
• - Machine or manual application
• - Accessories: rake


• - Average yield:
• - Manual application: 150 to 200 m²/worker served/day
• - Mechanical application: 300 to 500 m²/worker served/day
• - Shelf life: 1 year from the date of manufacture, stored away from moisture
• - Consumption: approximately 1.5 kg/m²/mm of thickness
• - Operating temperature: from +5 °C to +30 °C


• - Supports:
• - Cement screed*
• - Concrete slab*
• - Prefabricated concrete elements*
• - Old screeds or slabs with residues of vinyl adhesive*
• - Existing screeds or slabs exposed by planing or shot blasting*

Good to know:
* After applying Weberprim RP or Weberprim universal primer, refer to the paragraph, surface preparation.

• - Application thicknesses:
• - Premises classified P2: from 1 to 10 mm
• - Premises classified P3: from 3 to 10 mm


• - Usage Limitations: DO NOT APPLY ON
• - Floors that are constantly wet or subject to rising damp
• - Friable or unstable soils
• - Industrial floors
• - Wooden supports
• - Existing coatings
• - Outdoor flooring
• - Cannot be left naked


• - Implementation characteristics:
• - Rest time before spreading: 2 minutes
• - Practical usage time: 20 minutes
• - Open self-leveling time: 20 minutes
• - Waiting time before pedestrian access: approximately 3 hours


• - Drying time before applying a coating:
• - Tiles, textile coverings: 6 to 8 hours
• - Plastic coating: approximately 24 hours
• - Parquet: approximately 48 hours

Good to know:
These times are given at +20 °C; they are longer at low temperatures and shorter in heat.

• - Performance :
• - CE according to standard NF EN 13813
• - Classification according to NF EN 13813: CT-C20-F5
• - Adhesion to concrete: 1 MPa
• - Tensile and flexural strength: 5 MPa
• - Compressive strength: 20 MPa

Good to know:
These values are orders of magnitude from laboratory tests. They can be significantly modified by the implementation conditions.

• - Indoor air emissions class, according to the decree of 19/04/2011: A+
• - Classification: P3
• - Reference documents:
• - QB certified by the CSTB
• - NF EN 13813

Good to know:
If you want to make up more than 1 cm, carry out your work in several phases, making up only 4 to 5 mm per day.

It should be noted that the optimal usage date is April 2025, but it is still usable without any problems.