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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.


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  • 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


We are ready to assist you with dedicated product support or any technical enquiries.