Sika® FerroGard® CI 220

Dual Mechanism Corrosion Inhibiting Admixture

Sika® FerroGard® CI 220 is a dual mechanism, corrosion-inhibiting admixture formulated to inhibit the corrosion of steel in  reinforced concrete.

Sika® FerroGard® CI 220 functions by inhibiting corrosion at its critical points. It reacts with the cement hydration process to form a hydrophobic pore-blocking ingredient, that lines the pores of the concrete matrix and reduces capillary suction slowing the rate at which chlorides, gases, and moisture enter the concrete. Sika® FerroGard® CI 220 provides additional protection by adsorbing onto the reinforcing steel to form a corrosion-resistant protective film. This protective film slows the corrosion process by preventing chlorides from reacting with the reinforcing steel.  
  • Extends the service life of reinforced concrete structures
  • Reduces the rate at which chlorides, gases, and moisture enter the concrete 
  • Effective in cracked concrete where the elements that cause corrosion have direct access to the reinforcing steel 
  • Increases sulfate resistance
  • Normal set product that can be easily used in elevated temperatures
  • Does not significantly affect the plastic properties of concrete
  • Does not significantly affect the concrete temperature development
  • Does not significantly affect the final hardened concrete properties