Here's some useful info turkish mate......
PRIMING AND SEALING
Apply BAL BOND SBR direct and undiluted
● to existing vinyl floor tiles. Provides a priming coat for the direct
fixing of ceramic tiles with BAL cementitious adhesives. ●
to the edges and reverse faces of sheet and board backgrounds
prior to fixing ceramic wall tiles with BAL ready-mixed adhesives. Minimises distortion from atmospheric changes.
●
to concrete floors to provide a dust free surface. For particularly
dusty or porous surfaces prior to ceramic tiling, dilute 1 part BAL BOND SBR with 4 parts water.
Brush apply over the surface to be treated and allow to dry. When
used as a primer do not allow to dry for more than 24 hours. Timber
must be free from surface treatments prior to the application of
BAL BOND SBR. Lay ceramic tiles in accordance with BS 5385
Parts 1-4 and the relevant BAL product data sheet.