ARDEX S 21 is ideal for fixing large floor tiles or brick pavers, and can also be used to form ramps and falls. -Suitable for fixing floor tiles, pavers, natural stone, etc -Use with sharp sand to form ramps and pre-level subfloors -Rapid hardening formulation allows tiles to be grouted and walked on after 3 hours -Pourable consistency achieves solid bed fixing with ease -Ideal for almost all tile types including non-moisture sensitive natural stone -Suitable for internal and external areas

Substrate/Surface Concrete, Cement/Sand Render and Screed
Adhesive Drying Time 3 Hour
Adhesive Adjustment Time 20 Minutes
Adhesive is flexible No
Flexible Yes
Application Trowel
Drying Speed Walkable in 3 hours
Bed Thickness 2 - 10mm
Working Time 20 Minutes