Fills in the cracks between rocks for improved waterfall appearance!  Our black expanding foam is one of the fastest curing foams available!  Dries to touch in ten minutes, cures in one hour.  Dries dark gray/black in color and blends into the shadow well.

Our professional grade gun foam is recommended for serious pond builders!  A more economical way to use foam sealant. Will fit the Hilti guns.

Must be used with foam gun shown below.