Designed specifically for large format tiles over 1200mm, Mapei Keraflex Maxi is a high performance, flexible cementitious adhesive, with no vertical slip and extended open time. Keraflex Maxi S1 is particularly suitable for installing large format tiles; highly thixotropic for installing heavy and large format tiles on vertical surfaces without sagging. It’s a grey or white powder composed of cement and fine graded sands, containing a high quantity of synthetic resins and special additives according to a formulation developed in Mapei’s research laboratories. What’s special about this product? > Easy to work with > Highly thixotropic > Good open and adjustability time > Hardens without appreciable shrinkage