DuroFlex Primer 900-P1 bonding bridge for liquid latex membranes to be applied on concrete or screed. Surface preparation for the liquid latex membranes DuroFlex M 900, Silox 901-MX and Silox 903 DF. The primer prepares sucking surfaces and prevents damages coming through highly suck able surfaces. DuroFlex 900-P1 is the standard primer for uncomplicated surfaces such as concrete. For other surfaces like old epoxy, old roofing foil or higher strains like biogas plants, are more sophisticated products available. DuroFlex Primers are available for many surfaces.