Mapei Ultralite Mortar Pro Lightweight Mortar with Polymer, Gray commercial while the metal hammer end

while the metal hammer end helps tackle stubborn

lets you pack it into joints without dragging it back out

Replace when the foam shows compression set or uneven spreading — typically every 1–2 large jobs

and any space where comfort is the design priority

Mapei Ultralite Mortar Pro Lightweight Mortar with Polymer, Gray commercial while the metal hammer endSetting tile? Ultralite Mortar Pro Lightweight Mortar with Polymer, Gray is the thinset that goes between your tile and the substrate. Lightweight formula covers more square feet per bag and is easier on your back during install. Same coverage you'd expect from a standard thinset, less weight per pound to carry up stairs.