Base requirements and coating conditions
The concrete strength class must be at least C25/30 with a wear resistance class of 3. The relative humidity of the concrete must be below 95%, and the surface temperature must be at least +3°C above the dew point. During application and curing, the temperature of the air, surface, and coating must remain above +15°C, and the relative humidity of the air must be below 80%. Always ensure the suitability of the coating for the intended substrate.
New concrete floor
Cement laitance and any uncured cement must be removed by surface grinding or shot blasting. All loose and adhesion-reducing material must be removed, and the surface must be thoroughly vacuumed to remove all cement dust.
Old concrete floor
Cement laitance and deteriorated concrete must be removed by grinding or shot blasting. All loose and adhesion-reducing material must be removed, and the surface must be thoroughly vacuumed. Dirty floors should be washed and rinsed with a synthetic detergent before any further surface preparation. Any existing old paint film must be completely removed from the substrate.
Anchor grooves
Anchor grooves must be made in accordance with the manufacturer’s instructions. They shall be installed along the edges of the area to be coated and around penetrations as well as columns or posts. The depth and width of the anchor groove should be twice the thickness of the coating.
Priming
Nanten ColorPUR Primer consumption is 0.35–0.5 kg/m². When installing Nanten ColorPUR at a thickness of 6–9 mm, 1.0–1.8 mm quartz sand should be broadcast onto the wet primer at approximately 150 g/m² to improve adhesion and facilitate application of the coating. When applying Nanten ColorPUR SL, 0.4–0.8 mm quartz sand should be broadcast onto the wet primer at approximately 150 g/m² for the same purpose. Once Nanten ColorPUR Primer is fully cured, the topcoat can be applied.
Mixing
Liquid components A and B are poured into the mixing bucket and mixed for 30 seconds. Ensure the containers are completely emptied before mixing. Once the liquid resin mixture is uniform, add half of component C and mix for approximately 1 minute until the mixture is homogeneous. Make sure the first half of component C is fully blended with the resin. Then repeat the process by adding the remaining half of component C. Mixing time may vary slightly depending on the ambient and material temperatures. Once the mixture is smooth and free of lumps, immediately bring the material to the application area. Apply the coating to the desired layer thickness using, for example, a notched trowel, and finish the surface with a spiked roller.
Notes
The components must be mixed mechanically. The ideal ambient and installation temperature range is between +12°C and +25°C. It is important to take the dew point into account to prevent moisture formation in the primer. The installation instructions must be read carefully before coating.
Storage and handling of waste
See the separate storage and disposal instructions https://www.fescon.fi/en/material-bank