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Sealing solutions for Prague Metro

Sealing solutions for Prague Metro

After the flooding of 19 stations, Prague set out on a vast project of rebuilding and refurbishing its metro system. Roxtec was chosen to supply water-tight, gas-tight and fire-proof seals for the tunnel sections.

Previously Prague Metro was using compounds as sealing solution. As from now they upgrade to Roxtec. Requirements include 90 minutes of fire endurance, and chemical resistance. The most frequent cable diameters are 4-70 mm.

Sealing new sections

Roxtec round transits have been selected to seal cables in the buildings and tunnels of the new sections of the Prague Metro. Roxtec R transits and RS seals are installed in the sections around the pressure doors and in firestop barriers.

Why use Roxtec?

  • Reliable solutions
  • Fire-proof
  • Pressure resistant
  • Resistant to chemicals
  • Built-in spare capacity for future needs

Projects facts

Project description

Refurbishment of metro system in Prague, the Czech Republic


Prague Metro

Design, build and installation

Dopravní podnik hl. m. Prahy a.s., Metrostav a.s. and Sitel spol. sr.o.


Sealing around pressure doors in metro tunnels and corridors and in firestop barriers

Sealing requirements

Double-sided resistance against water and gas (0.6 MPa), short-term resistance 1.1 MPa, double fire endurance 90 minutes (possible 2x60 min), chemical resistance water pH 3-11 and a lifetime minimum of 30 years