ARDEX Rapid Repair and Smoothing Systems includes ARDEX Feather Finish which has been specially forulated for thinner repairs. ARDEX Feather Finish is a rapid drying smoothing and patching compound which can be used on plywood, screed floors and existing ceramic floor tiles. The 11kg bags cover up to 50m² as skim coat and up to 10m² at 1mm thick. No primer is required.