| Generally
used for stopping running water or controlling intermittent moisture,
chemical foams are available in hydrophobic or hydrophilic versions.
They are water-activated, 100% solids, polyurethane, expanding foam
for permanent repairs. These products are also available in rigid
or flexible formulations to be used in nonmoving cracks or moving
joints. This procedure is performed from the negative-side, injecting
foam through the structure creating a positive-side waterproofing,
even 10 stories under ground. For more information from one supplier
about chemical grouts and other water prevention products check out
www.deneef.com. |