Mapei Keraflex Maxi White 20kg

Yes, Mapei Keraflex Maxi White is suitable for both internal and external use, and its formulation is specifically designed to handle large format porcelain tiles as well as ceramics, mosaics, and moisture-stable stone. Its highly flexible S1 classification means it can accommodate slight movement in the substrate, which is particularly important in outdoor settings where temperature changes can cause expansion and contraction. It can be applied in a bed thickness of 3mm to 15mm, giving you the adjustment needed for uneven outdoor substrates.

Mapei Keraflex Maxi White is confirmed as suitable for use over plywood overlays and underfloor heating systems, making it a versatile choice for modern kitchen and bathroom installations. Its high flexibility helps absorb the minor movement generated by heating cycles, reducing the risk of tiles cracking or debonding over time. The white colourway is especially well suited to light-coloured tiles, translucent mosaics, or pale natural stone where a grey adhesive might show through and affect the finished appearance.

Mapei Keraflex Maxi White features a low dust formulation, which makes mixing considerably more comfortable compared to standard cementitious adhesives, and reduces the amount of airborne dust in your workspace. As a single part adhesive, it simply requires the addition of water – no separate polymer additive or liquid component is needed – making it straightforward for competent DIY installers as well as trade professionals. Its standard setting time gives you a reasonable working window to adjust tiles before the adhesive begins to cure.