Zemdrain^® CPF liner

The Controlled Permeability Formwork (CPF) liner Zemdrain^® drains the water from the concrete edge zone. This makes the concrete harder, denser and more resistant and significantly increases the service life of the concrete surface.
Zemdrain® as a formliner delivers a higher concrete surface hardness and a virtually void-free, low-porosity surface. The improved surface reduces the growth of microorganisms and algae and improves resistance to freeze-thaw and abrasion.