With its extended working time, fresh mixes of ARDEX K 39 can be easily smoothed into existing pre-applied material up to 40 minutes after application. This gives the installer more time to focus on creating the perfect subfloor, with no trowel marks, ridges or joint marks, and additional preparation the next day.
Extended 40 minute working time
Walkable in as little as 2 hours
Excellent flow and surface finish
No patching or rubbing down the next day
Excellent coverage – 7.4m2 at 2mm thick