Schluter PRIMER-PS Peel & Stick Primer is a fast-drying, ready-to-use primer designed to improve the adhesion of Schluter’s peel-and-stick membranes to challenging surfaces. It enhances the bond on materials like OSB, plywood, gypsum concrete, and vinyl, which are often difficult for traditional adhesives to stick to. This primer is ideal for use in interior settings, where it provides superior bonding performance on both porous and non-porous substrates, ensuring a reliable foundation for ceramic tile, stone tile, or any other type of tile installation. By creating a stronger connection between the membrane and the surface, Schluter PRIMER-PS helps ensure long-lasting, durable results in areas requiring enhanced adhesion.