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Every concrete pour is another step towards completing the project.
Primostar® Formwork Waterstop

Every concrete pour is another step towards completing the project. 

Floors, walls, and ceilings are constructed in stages, and each subsequent concrete pour creates a construction joint.

Primostar® Formwork Waterstop acts simultaneously as a replacement for the construction joint formwork and as a watertight construction joint element.

✔️ Fewer work stages.
✔️ Less material.
✔️ Faster installation.

When every stage is carefully planned, the entire project moves forward more smoothly.

Primostar – Built to Last. 🍃

Primostar® Formwork Waterstop during concrete pouring. (concrete cast.)

Primostar® Formwork Waterstop

acts simultaneously as both a replacement for construction joint formwork and a watertight construction joint element.

Primostar® Formwork Waterstop before concrete pouring.
Primostar® Formwork Waterstop before concrete pouring.
Primostar® Formwork Waterstop before concrete pouring.
Primostar® Formwork Waterstop before concrete pouring.
Primostar® Formwork Waterstop after concrete pouring.


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Good waterproofing starts long before the construction site
the international ISO 9001:2015 and ISO 14001:2015 standards