TBM Products

Modern tunnelling ‒ and especially TBM tunnelling ‒ is unthinkable without chemistry. Like in our daily lives, many things used quite naturally are based on modern chemistry: visible success ‒ invisible contribution.

Normet have a complete range of annulus grout admixtures to suit all TBM backfill annulus grouting applications, together with experts in the field to support you all the way.


Normet TBM anti-dust and anti-wear agents are designed to significantly reduce disc cutter wear, temperatures, cutter blockages and dust levels.

Normet TBM main bearing greases combine good adhesion and cohesion properties with excellent lubrication properties. They prevent ingress of soil and water.

A range of environmentally friendly soil conditioners for different soil types and water conditions designed to reduce wear and improve the performance of EPB TBMs.

Normet offers a range of tail seal greases for shielded TBM use that cover first fill, high performance and economic driving grade applications.

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