Can I use Slate-Lite on the terrace/balcony?

You can use Slate-Lite outdoors without any problems.

Vertical installation as a wall is the simplest and most common method.

Floor projects are always carried out at the discretion of the installer, whether indoors or outdoors. Many successful flooring projects have been completed with Slate-Lite in the past, but we cannot guarantee its use as a floor covering.
When bonding over old tiles, you should fill existing joints beforehand, as otherwise the old joint pattern could show through over time.
As with any other wall covering, the substrate of the surface to be processed must of course also be sealed in accordance with applicable DIN standards.

The UltraThin eco+ product range is expressly excluded from use as a floor covering and also for outdoor use!