As bonding primer for P.T.B.-EGALISER-EN (PLUS) in case of layer on layer floor levelling application.
P.T.B.-PRIMER BL is applied prior to application of cement based adhesives, floor- and wall levelling mortars.
Is a bonding bridge on smooth and dense surfaces.
Solvent free and low odour primer.
Reduces the porosity, protects cement based adhesives and levelling-mortars from too rapid dehydration and prevents formation of cracks caused by shrinkage.
Extends the open time of adhesive and improves the adhesion of levelling compounds and adhesives.
Control colour light blue. After the film-formation of P.T.B.-PRIMER BL a colour change occurs. The primer is more transparent whereupon further work can start.