921 Renovation Plaster is a factory-prepared mixture of hydraulic binders (cement and lime), route, fine-grained mineral fillers and modifying additives. It is characterized by easy workability, high adhesion and hydrophobicity and porosity. After hardening, water and frost resistant. Does not limit vapor permeability. The product complies with WTA guidelines.

Destiny

921 Renovation Plaster is a finishing layer in the KREISEL renovation plaster system, in medium and high-salt places, applied to 920 primer plaster. Also used as a primer plaster in places with medium and low salt load. The high porosity means that it takes over and stores salts migrating from the substrate, and thanks to hydrophobic additives it limits the penetration of moisture into the substrate. The product is especially recommended for renovation and conservation of the historic building. It is suitable for application with a plastering unit (with a double mixing system, e.g. M-TEC DUO-MIX) and manually.

Technical data

• bulk density of fresh mortar: approx. 1.50 g / cm3,
• bulk density of hardened mortar: about 1.20 g / cm3,
• compressive strength after 28 days: category CSIV,
• flexural strength after 28 days: 1 MPa,
• adhesion to the ground and symbol of the crack model: 0.4 MPa; FP: B,
• shrinkage after 28 days of hardening: <0.1%,
• water penetration after water absorption test caused by water capillary action:> 5mm,
• water absorption due to capillary uplift: ≤ 0.3kg / m2min0.5,
• water vapor permeability coefficient m: ≤ 15,
• dissolved chromium VI content: ≤ 0.0002%
• storage: up to 9 months from the date of production, in dry places and in undamaged factory packaging,
• the product has the required documents for use.

attention

Irritating product. Wear suitable protective work clothing during work. Keep away from children.