Key Facts

Ceresit R 766

Multi-Purpose primer

For porous and non-porous surfaces


  • High concentration - high yield
  • Fast drying
  • For use in pre-existing and new substrates (Multi-purpose use)


R 766 is a high concentrated adhesive promoter with a very low emission of volatile organic compounds. It is mainly used for porous, non-porous and glazed surfaces such as ceramic tile or epoxy coatings, etc. and porous surfaces such as concrete, plaster, terrazzo, mortar, stone, wood, etc. ensuring the adhesion of self-leveling or repair masses to the substrate.

It is not recommended for use on substrates with residues of water-soluble adhesive. Ceresit R 766 is not a barrier against moisture. For indoor use only.



Plastic canister, 10 L



Non-absorbent substrates: 10 - 12 m2 / L diluted 1:1 with water

Absorbent and porous substrate (concrete): 6 - 8 m2 / L diluted 1:1 with water

Absorbent and highly porous substrates: 5 - 7 m2 / L diluted 1:4 with water

Drying time


1 - 2 hours

Shelf life


12 months

Step by Step


Shake vigorously before use and then dilute Ceresit R 766 with water 1:1 for non-absorbent surfaces and 1:4 (1 Ceresit R 766 : 4 water) for porous surfaces. Pour the dilution on the floor and distribute it evenly using a plush roller and brush moving them crosswise. For highly absorbent substrates apply a second coat. Let dry 1 to 2 hours.