NSF61 certified grout for ground improvement & water control.

CJGrout-35NHV61 is a moderate speed polyurethane grout designed for work in wet environments, particularly stormwater structure grouting and groundwater control grouting.  35NHV61 is certified for potable water contact. 35NHV61 was developed for use performing groundwater cutoff grouting below 1300LF of precast levee in Washington, DC. In addition to stopping leaks up to 2000GPM, 35NHV61 was used to improve WOH soils to an average of N=5 to reduce the likelihood of additional leaks developing.