Koster Restoration Plaster Grey & White
Koster Restoration Plaster is a salt and pressure resistant restoration plaster for the restoration of heavily moisture and salt burdened substrates. Due to its high porosity and hydrophobicity, Koster Restoration Plaster allows for the damage free drying and de-salting of masonry even in the case of high salt contents. It improves the insulative properties of the wall and therefore helps prevent the formation of condensate. It is free of light fillers and therefore requires no further surface treatment prior to the application of breathable paints or wallpaper which is open to vapour diffusion.
Koster Restoration Plaster Grey is suitable for the repair of moisture and salt damaged masonry, also after the post installation of a horizontal barrier with Koster Crisin 76, Koster Mautrol, Koster Mautrol 2C, or Koster Mautrol Flex 2C. It can be applied to reduce the formation of condensate after waterproofing rooms with high humidity using mineral sealing slurries such as the Koster KDSystem or Koster NB 1 Grey. Koster Restoration Plaster can also be used as a water repellent exterior plaster. In the case of exterior application we recommend the application of Koster Repair Mortar on the base area up to 30 cm above ground level.
- Approx. 12 kg/m² per cm layer thickness on uneven surfaces. Additional consumption may have to be considered for levelling the surface.
|Density of fresh mortar||1.3 kg / l|
|Porosity of fresh mortar||> 30 Vol.-%|
|Compressive strength (7 days)||>5.5 N / mm²|
|Flexural tensile strength (28 d)||> 2.5 N / mm²|
|Porosity of cured plaster||> 40 Vol.-%|
|Setting time||approx. 3 hours|
|Modulus of elasticity||> 6500 N / mm²|
|Water requirement per 25 kg bag||2.8 – 3.3 kg|