Mapei Keraflex Super Premium Extra Smooth Large & Heavy Tile Mortar, Gray

Mapei Keraflex Super Premium Extra Smooth Large & Heavy Tile Mortar, GraySetting tile? Keraflex Super Premium Extra Smooth Large & Heavy Tile Mortar, Gray is the thinset that goes between your tile and the substrate. Built for large format and heavy tile (1224 and up) where standard thinset would slump or sag under the weight. Non slump on walls, no lippage on floors.

Available sizes

European aesthetic that's become the signature of high-end Canadian renovations

Factory-formed — maintains material thickness at the corner

Pro Tip: Order your reducer at the same time as your flooring — Mahoods color matching can drift slightly between production batches

38" × 38" (97 × 97 cm)

Tungsten carbide cutting edges for hardness and long-lasting durability

It's the right call when you want to open up a space visually or when the design direction runs toward Scandinavian

The T-cap only works when floors are even — get the right piece the first time and avoid a trip back to the store

not after drywall

Rule of thumb: If the substrate is porous

step up to the 200-piece set — running out of fasteners mid-job is how delays happen

The coordinated color match keeps the transition looking planned