Knauf Casiol Grund Primer - Mineral Calcium Silicate Primer - 12.5 litre bucket

Knauf Casiol Grund Primer is a ready‑to‑use, white‑pigmented, highly vapour‑permeable mineral calcium‑silicate primer designed to reduce the risk of lime efflorescence and to equalise suction on alkaline finishing renders before applying paint coats, particularly medium to intensive colour shades. Its mineral composition and silicate‑reactive behaviour ensure excellent compatibility with dispersion‑silicate paints, creating a stable, uniform substrate for high‑quality decorative finishes.

The primer regulates absorbency, improves surface uniformity and enhances the performance of subsequent coatings. Suitable for interior and exterior use, Casiol Grund can be applied by hand or machine and may be tinted to approximate shades from the Knauf ColorConcept selector.

Consumption: 73m2 / bucket

Note: The exact consumption can only be determined with a test application on the individual object.

CHARACTERISTICS

• Highly vapour‑permeable - maintains breathability of mineral substrates.
• Reduces lime efflorescence - protects mineral plasters from surface staining.
• Absorption‑regulating - equalises suction on alkaline finishing renders.
• Silification‑capable - ideal for dispersion‑silicate paint systems.
• Ready‑to‑use - consistent application by roller, brush or machine.
• Interior and exterior use - versatile across façade and interior surfaces.
• White pigmented - approx. RAL 9010, can be tinted to Knauf ColorConcept shades.
• Very low emissions - EC1plus certified according to GEV‑EMICODE.

APPLICATION

• Primer for alkaline finishing renders before paint application
• Preparation for medium to intensive colour shades
• Mineral plaster substrates requiring efflorescence protection
• Interior and exterior mineral backgrounds