Improves adhesion and bond strength of TEC® levelers to the subfloor. Also allows direct ceramic tile installation on many difficult-to-bond-to substrates such as metal, unscarified glazed ceramic and gypsum.* For peel and stick tile installation, primer can be used on dry, porous concrete, gypsum cement underlayments and plywood. May also be used to promote bond over cold-rolled steel substrates.
Certain installation requirements apply. See TEC® Product Data Sheet for more information, proper installation of products and limitations