weberprim 801 Primer 10 Liter Can

weberprim 801 Primer for Absorbent Substrates

weberprim 801 is a single-component, solvent-free, ready-to-use primer for pre-treating absorbent substrates.

• For highly absorbent substrates
• For interior and exterior use
• For walls and floors

Application Area:
weberprim 801 is an alkali-resistant, saponifiable primer with dust-binding and water-repellent effects. It can be used to pre-treat absorbent substrates, making them ideal for subsequent application of laying mortars, tile adhesives, filler compounds, or plasters.
weberprim 801 is suitable for priming gypsum plasters, gypsum boards, and fiber gypsum panels, aerated concrete, mineral plasters, fiber cement panels, concrete, masonry, cement screeds, and calcium sulfate screeds prior to tile installation. Tile adhesives are protected against rapid water loss, thereby improving their open time and adhesion.

Composition: Plastic dispersion

Product Properties:

• Improves adhesion to the substrate
• Ready to use
• Very easy to roll and brush
• Alkali-resistant
• Solvent-free
• EMICODE EC1 plus: very low emissions

Substrate Preparation:
The substrates must be sufficiently load-bearing, dust-free, dry, free of oil and grease, dimensionally stable, and free of substances that reduce adhesion. Loose or peeling mortar and paint residues must be carefully removed. Peeling mortar and paint residues, lime paints, chalky whitewash, and loose parts must be removed, and surfaces should be dusted off. Wash off lime paints and less resistant dispersion coatings, and ensure they are thoroughly dried before treatment.
The necessary substrate pre-treatments should be adapted to the specific conditions of the construction site.

Application:
weberprim 801 is ready for use or can be diluted up to a maximum ratio of 1:1 with water at room temperature.
For highly absorbent substrates, two coats are required.
Apply evenly and thoroughly with suitable tools such as brushes, rollers, or spray equipment. Avoid foam formation.
Drying should be checked with a scratch or wetness test. After sufficient drying, subsequent covering work can begin. Adhesives should be applied within 2 days.
Tools should be cleaned immediately after use with water.
In the hardened state, tools can be cleaned with webersys 992.

Material Consumption: approximately 150 to 250 ml/m depending on the substrate.