Lost formwork


  • fast and economical assembly through insertion in the formwork
  • no joint backing
  • secure attachment through rear concreting-in of the screws
  • for all tunnel cross-sections
  • for all types of tunnel, including immersed tunnel segments
  • also certified for high-strength concretes
  • required concrete cover of the reinforcement only 40 mm

Structural protection on flat surfaces

Certified according to: RWS, HCM, HC, ZTV-ING and EBA


Construction Materials

01 PROMATECT®-T, thickness as required
02 Dry wall screw, length, number and steel quality as required (note manufacturer's information)


The PROMATECT®-T boards (1) are placed on the formwork. Screws (2) are inserted into the board for anchoring in the concrete.

Anchor Arrangement

The number and arrangement of the screws depends on static and dynamic requirements.

Joint Design

Open joints are permitted if required for tolerance purposes. Backing, e.g. with board strips, is not necessary.

Ceiling/Wall Connection

For protection of the ceiling support the lining of the walls is designed to be ≥ 1000 mm.





Product Data Sheets

Europe & Asia Pacifics

Europe & Asia Pacifics