Thermal toughening makes the material temperature shock resistant and able to stand up to high mechanical loads without damage.

In the thermal toughening process, the glass washbasins are heated to about 100 °C above their transformation temperature and then quenched with cold air. This treatment "freezes" the surfaces of the glass i.e. compressive stress is set up. The surfaces are in compression and the interior is in tension.

If this tension is released by damage to the edges or the surface, the glass cracks into a large number of small glass crumbs that are more or less loosely connected to one another. The glass can fracture immediately or at a later point in time.

Because it has a high degree of mechanical and thermal strength and because of its characteristic fracturing behavior, thermally toughened glass, in contrast to conventionally annealed glass, breaks safely.

PearlFinish™ coating. The glass surface is treated with PearlFinish™ in an additional production step. This protective layer forms a bond with the glass surface, producing a lasting and very smooth surface. This process makes our basins more resistant to weathering and etching, furthermore the PearlFinish™ coating allows water to roll off/ slides smoothly making cleaning easy and lasting for a long time.