Aus-Crete Maxi light 9.5 is a high performance mastic type that is a flexible and polymer fortified adhesive that is used for installing a wide range of tile and stone. Aus-crete maxi light 9.5 provides great coverage and is exceptionally easy to use. Will install tile and stone to a wide range of substrates: cement sheet, plasterboard, suitable waterproof membranes, concrete, render and screeds. Suitable for packing out and back buttering to plumb and level tile and stone installations. This product will chemically cure when installing large procelain tile over waterproff membranes.