MasterRoc® SA 187 — Alkali-free, liquid high performance set accelerator for sprayed concrete​


Formerly: MEYCO SA 187


What is MasterRoc SA 187​?

​MasterRoc SA 187 is a high performance alkali-free set accelerator for sprayed concrete, whose dosage can be varied to the desired setting and hardening times.

Fields of application

  • Temporary and permanent ground support in tunnelling and mining
  • Slope stabilization
  • Also suitable for acceleration of cementitious grouts, such as for annulus grout in TBM tunnels, cemented ground injection and foam concrete.

Features and benefits

MasterRoc SA 187 is ideally suited for wet mix sprayed concrete for ground support:
  • The quick setting property allows rapid work progress and the ability to construct thick sprayed concrete linings via layered application during one construction sequence.
  • The unique product formulation provides fast setting, continuous ​early-age strength development, high durability and good long term strength.
  • Very low dust generation during application and therefore a good working environment.
  • Possibility of low rebound applications when using the correct nozzle angle and distance.
  • Non-aggressive properties provide improved working safety reduced environmental impact and lower handling costs.