Norcros Rock-tite Mortar Additive 12.5kg
Norcros Rock-Tite Mortar Additive is part of a 3-part system consisting of a Primer, Mortar, and Brush-in Grout; it is an alternative to Rock-tite Mortar.
Rock-Tite Mortar Additive is an additive for use with sharp sand, allowing it to function as a fibre-reinforced cement mortar.
Mix 75kg sand per 12.5kg bag, covers 2 square metres at 25mm thickness.
Can be used between 10mm and 80mm thickness. Below 25mm for solid bases only. Ideal thickness is 50mm.