MasterInject® 1230 IUG is a one-component polyurethane hydrophobic injection resin with an optional
accelerator to control setting times. It reacts with water to form a resilient and flexible plug that seals
leaks in concrete structures. The required rate of expansion and reaction to water can be altered by
temperature or by the amount of accelerator used. MasterInject® 1230 IUG has been tested by UL to
NSF standard 61, for use with potable water.