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CERESIT R 777 DISPERSION PRIMER

  • Very high coverage
  • Agglomerates residual dust
  • Seals mortar pores

Features and benefits

Dispersion primer for absorbent screeds and concrete floors, suitable for directly bonding floor coverings.

Properties

Description

CERESIT® R 777 is a dispersion primer used as a bonding bridge for CERESIT levelling and smoothing compounds on absorbent substrates such as cement screeds and concrete floors, calcium sulphate screeds, levelling and smoothing compounds, dry construction boards. Can also be used before directly bonding floor coverings on suitable substrates with CERESIT adhesives.Available size: 5 kg and 10 kg

Documents and downloads

How to use

CERESIT Tiling CE60 LP Instructions Illustration Step 1

SUBSTRATE PREPARATION FOR APPLICATION OF CERESIT R 777

Subfloors must comply with the requirements of comparable national standards. In particular they must be clean, free from structural defects, firm, permanently dry and free of release agents. In case of cement based substrates, any laitance must be removed using suitable machines. Always grind sulphate screeds (with sandpaper, grain size 16) and vacuum clean.

CERESIT Tiling CE60 LP Instructions Illustration Step 2

MIXING OF CERESIT R 777

Shake well before use. On screeds dilute CERESIT R 777 1:1 with water, on concrete floors use CERESIT R 777 undiluted. 

CERESIT Tiling CE60 LP Instructions Illustration Step 3

APPLICATION OF CERESIT R 777

Apply evenly with a lambskin roller. Do not allow the primer to form puddles. A second coat may be necessary on porous, very absorbent substrates after drying. 

Related how to guides

  • How to prepare floor for self levelling compound application
  • How, when and why use primers in flooring jobs

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Frequently asked questions