Other concrete additives

STONE FS is a water-proofing admixture for concrete products. It considerably reduces the capillary water-absorption and thus prevents efflorescence significantly. Rheological and physical characteristics of the concrete are only insignificantly affected by using it. The improved water sand cement mixing performance is achieved an increased compaction property. STONE FS covers the solubilised binding agent particles, which in turn mantle the aggregates, with a water- repellent layer.By this “inner coating”, the intrusion of water into the capillary pores is extremely reduced and the diffusion of calcium hydroxide from the cement stone to its surface is considerably reduced; primary and secondary efflorescence are effectively prevented.

Product characteristics
  • high hydrophobing effect
  • reduces the occurrence of efflorescence
  • easy processing
  • better compaction