Sika® Sigunit® Powder K

High performance powder accelerator for dry mix shotcrete

A ready to use alkali free accelerator in powder form for use with dry gunite mixes. It allows spraying to take place even on wet surfaces subject to slight infiltration.

Sika® Sigunit® Powder K reacts in the mix to assist the hydration process, resulting in greatly accelerated strength development within the first 24 hours. Other benefits include :
  • Speeds up the job
  • Improved water tightness
  • Reduced rebound
  • Better adhesion to areas of slight seepage
  • Chloride free and does not corrode the reinforcement
  • Improves overhead spraying
  • Compatible with many types of cement including low alkali cement
  • Good early strength