Designed specifically for large-format tiles over 1200mm, Mapei Keraflex Maxi S1 Grey is a high-performance, flexible cementitious adhesive with no vertical slip and extended open time.

Its highly thixotropic formulation makes it particularly suitable for installing heavy and large-format tiles on vertical surfaces without sagging. Supplied as a grey powder composed of cement and finely graded sands, it contains a high quantity of synthetic resins and special performance additives developed in Mapei’s research laboratories.

Easy to work with and offering excellent adjustability time, Keraflex Maxi S1 hardens without appreciable shrinkage, delivering a durable and reliable bond for professional tiling projects.