Mineral fl exible adhesive intended for bonding styrofoam (EPS boards), graphite styrofoam, EPS G boards as well as mineral wool boards (MW boards) to solid facade surfaces, as well as for embedding the reinforcement mesh and for leveling the entire facadesurface. BKStirolFix 1 is used as an adhesive for bonding and as a base coat, i.e. adhesive for reinforcement within both BEKATHERM thermal insulation systems (BEKATHERM Standard system with EPS thermal insulation boards and BEKATHERM Prestige with MW boards).