Schluter®-PRIMER-U is a ready-to-use universal primer used to enhance adhesion of mortars for hard-to-bond substrates such as gypsum underlayment, existing tile, terrazzo, steel (e.g. raised access panels), flooring adhesive residue, concrete with curing compounds, latex paint, and glass tile. Ideal for use with Schluter SET®, ALL-SET, and FAST-SET thin-set mortars, and Schluter underlayments such as Schluter®-DITRA and DITRA-HEAT Ready-to-use, single-coat application with roller or broom One-component, solvent-free, water-based acrylic formulation Low odor and zero-VOC Freeze/thaw stable
