Multipurpose Primer is an acrylic, latex-based primer for use with TEC® brand self-leveling underlayments. It may also be used to enable the bonding of other TEC brand surface preparation products and latex modified thin set mortars to difficult substrates such as metal, glazed ceramic tile, gypsum-based underlayments and concrete treated with certain types of curing compounds (silicate or acrylic resin curing compounds only) and well bonded epoxy coatings.
Use to prime resin and metal backings on natural stone and install with latex modified thin set instead of epoxy mortar. For peel and stick tile installation, this primer can be used on dry, porous concrete, gypsum cement underlayments and plywood. It may also be used to promote bond over cold-rolled steel substrates.