When it comes to walls, the question is not if a crack will occur.

The question is where it will occur — and whether it happens in a controlled way.

Primostar® Crack Control System helps guide cracking exactly to the intended location while maintaining the waterproofing performance of the underground structure.

✔️ Controlled cracking

✔️ Performance throughout the structure’s service life

✔️ Works with the natural behaviour of concrete

Because in underground construction, the most dangerous crack is not the crack itself. It’s the crack in the wrong place. 

Primostar – Built to last. 🍃