Groutable™ Hydrophobic 1505 is a single component hydrophobic grout based on polyurethane. It reacts to water contact by extending up to 27x in volume and forming a closed-cell rubber-like foam. Once cured, the waterless foam remains unaffected by water or dryness, and does not shrink or swell.
Negative side injection compliant
Penetrates deep into tiny cracks
Expands to fill cavities and voids
Bonds well and full to all surfaces
Adhesion tolerant of movement
Compatible with most injectors
Inert, constant, no shrinkage
Does not create new cracks