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Details

???MasterRoc^® TSG 870

Fire Resistant First Fill Tail Sealant for Shielded Tunnel Boring Machine (TBM)

???How does MasterRoc TSG 870 work?

??MasterRoc TSG 870 is a fire-resistant first-fill tail sealant that effectively seals the gap between the shield tail and the concrete segments to prevent the ingress of water, grout, and soil. MasterRoc TSG 870 sealant is formulated as a "first fill" product to resist high water and ground pressures. It has excellent adhesion to all types of surfaces.?

Recommended Use:

Tunneling with shielded TBM equipped with a tail brush seal system

What are the unique features of MasterRock TSG 870?

Fire resistant
Excellent sealing properties
Excellent pumping properties
Excellent adhesion to metal or concrete surfaces
Very high washout resistance
Non-miscible with annulus grout?

What are the benefits of MasterRock TSG 870?

Prevents the ingress of soil, water or grout into shielded TBM
Does not propagate flames when exposed to sparks or flames?

Additional Information

Manufacturer: Master Builder Solutions