Schluter® PRIMER-PS Peel & Stick Primer Size:1 Quart (946 mL) and large-format planks (even 24×48")

and large-format planks (even 24×48") lay down without drama

Gypsum concrete — apply PRIMER-PS first

or self-leveler

The polypropylene flange has an integrated KERDI collar — the waterproofing membrane bonds directly into it

Schluter® PRIMER-PS Peel & Stick Primer Size:1 Quart (946 mL) and large-format planks (even 24×48")PRIMER PS is a ready to use primer specifically formulated to improve the bond between Schluter's peel and stick membranes (DITRA PS, DITRA HEAT PS, DITRA HEAT DUO PS) and substrates that are harder to stick to. Think OSB, gypsum concrete, vinyl, and plywood surfaces where the PSA alone might not grab hard enough for a permanent bond. It's a one component, solvent free, water based formula. No mixing, no additives. Pour it out, roll or brush it on,