Lithium Carbonate Alternatives

AptiLith Ultra

AptiLith Ultra is a powder setting time accelerator and early strength enhancer for systems based on Portland cement combined with HAC or CSA cements. It provides a modern alternative to the use of high alkali salts such as lithium in accelerators and avoids surface imperfections inherent in older technology.


AptiLith Ultra has been developed for fast setting cementitious systems where rapid fixing and laying is essential, such as:

  • Tile adhesives and grouts
  • Self-levelling floor screeds
  • Concrete repair systems


  • Dramatically accelerates setting times and increases early strength
  • It has a significant benefit over Lithium accelerators as it reacts with the Portland, HAC and CSA elements of cement mix
  • It is highly effective at a wide range of temperatures and is ideally suited for use in cold weather applications
  • It is highly reactive in ternary binder systems and compatible with additives used in dry mortar formulations


AptiLith Ultra should be added to the powder blender following the addition of sand and cement to ensure homogeneity.

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