Rapid-dry tile and uncoupling membrane mortar
Ardex S 28 from Ardex is said to be a high-performance, rapid drying and rapid hardening, microfibre-reinforced, polymer-modified tile and stone mortar for interior installations.
The mortar is also said to be highly flexible with virtually no shrinkage and an extended open time of 45 minutes, making it suitable for large and super format tile and stone installations.
Permitting walk on and grout in 4 hours, the semi-pourable consistent product enables full tile coverage, with thin to medium bed installation up to 5/8 in. (15 mm).
Features include a pot life of 75 minutes, adjustment time of 20 to 25 minutes, and coverage of 103 sq. ft./40 lb. bag.