Refer to the bag for how much water the plaster requires. Add the dry material to the water and mix with a concrete mixer for around ten minutes. With a power mixer or a drill paddle, around two to three minutes of mixing is sufficient. Allow the plaster to stand for around ten minutes and mix it again for a short while. Find the correct consistency at this stage by gradually adding the rest of the water. We do not recommend adding all of the water right at the start. The finished plaster remains workable for around three hours.
The lowest working temperature is +5°C. The temperature of the stones must be above 0°C. When the temperature is below +5°C, use Fescon winter plaster for the masonry work. Follow the instructions of the designers and official regulations in masonry work. National Building Code of Finland B8, Brick Structures. Instructions 2007. SFS handbook 176.
Storage and handling of waste
See the separate storage and disposal instructions https://www.fescon.fi/en/material-bank