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Gray, lime-cement renovation plaster in the KREISEL renovation system

Technical data sheet Technical_data_sheet_RENOVATION_PLASTER_921_DC0042127.PDF
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Tynk 921 is a finishing layer in the renovation plasters system, intended for surfaces with medium to high exposure to the effect of salt, applied on plaster 920. The plaster can be also applied as base on surfaces with medium and low exposure to the effect of salt

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.

!Mit Traufel aufziehen!
  • Vapor-permeable
  • Hydrophobic
  • Product conforms to WTA guidelines
  • Retains crystalline salts
  • Frost-proof

Amount per unit

30 kg/bag

Unit per pallet

40 Stk./Pal.


In dry areas and in non-damaged packaging, up to 12 months from the date of manufacture

Abmessung размер

PN-EN 998-1:2012

Water mixing proportionsc.a. 7.6 liters of water per 30 kg of the mortar
Layer thicknessfrom 10 to 25mm
Shelf life after mixing with water2 hours (at +20°C)
Dry mix consumptionc.a. 1.1 kg/m2 per 1 mm of layer thickness
Tensile strength≥ 2,5 N/mm2
Resistance to bending≥ 1,0 N/mm2
Soluble chromium VI content≤ 0.0002%
Reaction to fireClass A1
groundwork adhesion, crack model≥ 0,2 MPa, FP:B
Water absorptionW1
Vapor permeability coefficientca. 10
Durability≤ 1500kg/m3
DurabilityWeight loss after 25 cycles max 15%. Flexural strength decrease max 55%
Durability (with regard to frost resistance)λ: < 0,83W/m*K