Drilling Fluids & Additives
ADDITIVES / GREASE AGENTS
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TGS DRIVE®
TSG DRIVE® is a tail seal grease for shielded TBMs. It protects the wire brushes and maintains a tight tail seal during tunnel excavation. It is a viscous material that acts as a barrier to water, mortar and soil. It is specifically formulated to resist washout from high water and ground pressures and adheres to all surfaces.
Tail sealant in tunnel excavation
Seals gap between concrete segments and shield
Properly fills interbrush chambers
Tail sealant in tunnel excavation
Seals gap between concrete segments and shield
Properly fills interbrush chambers
Tail sealant in tunnel excavation
Seals gap between concrete segments and shield
Properly fills interbrush chambers
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Product support & technical enquiries
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