PRIMERCOAT PrimerCote is a specially designed textured substrate coating used in combination with Cemcrete FlexBond to bond new screeds to existing surfaces. Learn more PRIMERCOAT PrimerCote is a specially designed textured substrate coating used in combination with Cemcrete FlexBond to bond new screeds to existing surfaces. To provide a tough adhesive for new screeds and Cemcrete’s SuperScreed. DATASHEET