Tynk 920 serves as a base for plasters 921 and 922 in the renovation plasters system, and is applied on surfaces with medium to high exposure to the effect of salt. Thanks to its high porosity, it absorbs and retains the salts migrating from the groundwork.
The product is particularly recommended for renovating and maintaining historic monuments.
Product conforms to WTA guidelines
Suitable for machine-spray application (with double mixing system, e.g. DUO-MIX by M-TEC), as well as manual application.
- Product conforms to WTA guidelines
- High porosity
- Frost resistant
Amount per unit
Unit per pallet
Maximum 9 months in dry areas and in non-damaged factory packaging
|Water mixing proportions||c.a. 6.0 liters of water per 25 kg of dry mix|
|Layer thickness||from 10 to 20mm|
|Shelf life after mixing with water||2 hours (at +20°C)|
|Dry mix consumption||c.a. 1.20 kg/m2 per 1 mm of layer thickness|
|Granulation||0 to 20mm|
|Soluble chromium VI content||≤ 0.0002%|
|Reaction to fire||Class A1|
|groundwork adhesion, crack model||≥ 0,2 MPa, FP:B|
|Vapor permeability coefficient||ca. 10|
|Durability (with regard to frost resistance)||Weight loss after 25 cycles max 15%. Flexural strength decrease max 55%|
|Release / content of hazardous substances||* NPD|