RF-PRIMER is used to prime floors prior to fitting your underfloor heating. RF-PRIMER is a specially formulated acrylic dispersion to improve adhesion and flexibility of porous substrates prior to tiling.

RF-PRIMER is supplied with all undertile kits in 1, 2 or 3 litre quantities, but it is also available on its own in 5 litre containers.

RF-PRIMER is acrylic based and will reduce the amount of moisture the substrate will absorb from compounds and adhesives, thereby  assisting these materials to dry naturally in accordance with the manufacturers instructions.