Process of PU Injection Grouting:

A) Install injection packers: Surface packers (Short rigid-metal tubes with a flat base) aterial into the crack. They eliminate the need to drill into the concrete, reducing labor time and cleanup. The base of the packer is placed directly over the crack and bonded to the surface with an Epoxy paste. A general rule-ofthumb is to space the packer an inch apart for each inch of wall thickness.

B) Seal the packer: Use an Epoxy Adhesive to seal over the packer and exposed cracks. The paste cures in about 20 to 45 minutes to provide a surface seal with excellent bond characteristics that holds up under injection pressures. The entire exposed crack is covered with the paste, leaving only the packers holes uncovered.