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CERESIT R 777

Dispersion primer

  • Binds residual dust
  • Closes screed pores and adjusts the absorbency
  • Powerful bonding bridge

Features and benefits

Very low-emission dispersion primer used as a bonding bridge for levelling and smoothing compounds on absorbent substrates such as cement screeds and concrete floors.

Properties

Description

CERESIT® R 777 is a very low-emission dispersion primer used as a bonding bridge for CERESIT levelling and smoothing compounds on absorbent substrates such as cement screeds and concrete floors, calcium sulfate screeds, levelling and smoothing compounds, dry construction boards. Can also be used before directly bonding floor coverings on suitable substrates with CERESIT adhesives. CERESIT R 777 is not a barrier against moisture.

Documents and downloads

How to use

Substrate Preparation

Subfloors must comply with the requirements of ATV
DIN 18 365 «Floor covering work» or BS CP 8204 or
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.

Application

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

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Frequently asked questions

No. It is designed for indoor use only

It can be applied at 2 to 10mm/layer

Yes. Ceresit R 777 is the recommended primer