#551 Polyurethane Rigid Foam #551 Polyurethane Rigid Foam. A two-part polyurethane injection material that produces a rigid, closed-cell foam. This hydrophobic grout product is used as an effective stabilizer in water-bearing soils and in void filling.
APPLICATIONS INCLUDE: Wall anchor plate sealant, Void filler, Soil stabilizer
- Fast reaction
- Easy 1:1 mix ratio
- No shrinkage
- Expansion of up to 1000% by volume
- Very durable foam