MasterRoc TSG 870 - First fill fire resistant tail sealant for shielded tunnel boring machines (TBM)
What is MasterRoc TSG 870?
MasterRoc TSG 870 is our new fire resistant first
fill tail grease for shielded tunnel boring
machines. It effectively seals the gap between
the shield and concrete segments to prevent the
ingress of water, grout and soil.
It is formulated to resist high water and grout
pressures and has excellent adhesion to all types
of surfaces. It is designed as a first fill sealant.
What is MasterRoc TSG 870 used for?
Tunneling with shielded mechanized tunnel
boring machines (TBMs) equipped with a tail seal
brush system.
What are the benefits of MasterRoc TSG 870?
- Excellent sealing properties
- Excellent adhesion to any metal or concrete surfaces
- Good pumping properties
- Pumping system recommended to be close
to the application location