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For indoor and outdoor use
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Walkable after 3 hours
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Rapid hardening
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Ready to cover after 24 hours
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For producing drainable and dense base course
CERESIT® CN 85 is used for producing bonded screeds, screeds installed on a separation layer, heated screeds and floating screeds (in layers of 10 to 80 mm thickness). CN 85 can be used under a variety of different floor coverings such as tiles and parquet. It is used for producing wearing screeds that are subsequently covered with a floor coating. Suitable for installing discoloration-proof natural stone coverings when using the thick-bed method. Available pack size: 25 kg
For producing bonded screeds/drainage mortars, the concrete must have a rough, open-pored structure with a good "key" or grip. Mechanically remove any surface contamination, sintered layers etc. Slightly pre-wet the concrete surface.
Always apply bonded screeds wet on wet while the bonding slurry is still fresh. After start of setting, the cement must not be diluted with water or mixed with fresh material. The screed must be applied, compacted, levelled and rubbed down within the working time.
Mix CERESIT CN 85 with an aggregate according to DIN 4226 (grain size 0–8 mm, with a continuous and optimized grading curve). Add clean water and mix with the help of a customary paddle mixer. Do not add/mix any additives or other binders.
CERESIT CN 85 is used for producing bonded screeds, screeds installed on a separation layer, heated screeds and floating screeds produced in compliance with DIN EN 13 813/ DIN 18 560 (in layers of 10 to 80 mm thickness).
CERESIT CN 85 can be used under a variety of different floor coverings such as tiles and parquet. It is used for producing wearing screeds that are subsequently covered with a floor coating.
Excess mortar can be cleaned off with water while still fresh, but after hardening only mechanical removal is possible. Rinse and clean the mixers and mortar pumps with water before and after work.