Void filling and slab lifting | Azo-Grout™ 551

Azo-Grout™ 551 is a two-component, hydrophobic polyurethane that forms a very dense, rigid foam when reacted with Azo-Nate™ 300.

The product has the capability to expand up to 10 times its liquid state while maintaining a closed-cell structure, providing permanent stability. The ability to expand, while keeping closed-cell characteristics, makes Azo-Grout™ 551 an excellent applicant for underground void filling and slab lifting of floors, roadways and sidewalks.

Product Data Sheet (download PDF)