Avanti AV-290 Fast-Set 22oz Cartridge Case 6

Avanti AV-290 Fast Set is a dual-component hydrophobic polyurethane grout for large below-grade voids. It expands on free rise into a rigid, closed-cell foam and does not need water to react.

Below-grade void filling
High-flow slowing with a companion Avanti resin
Pipe and tank abandonment

$319.23

Drop Shipped

Details

Avanti AV-290 Fast Set Hydrophobic Polyurethane Grout, 22oz Cartridge

Avanti AV-290 Fast Set is a dual-component hydrophobic MDI polyurethane for filling large below-grade voids in high water flow. Water is not required for the reaction. The foam expands on free rise, cures rigid and closed-cell, and is used for probe grouting, curtain grouting, pressure injection, and pipe or tank abandonment. When high water must be slowed, Avanti specifies AV-290 Fast Set with another injection resin rather than as a stand-alone seal.

Key Features

22oz dual cartridge, case of 6: Part A 10.9 fl. oz. (325 ml) and Part B 10.9 fl. oz. (325 ml) per cartridge.
Dual-component hydrophobic MDI-based polyurethane (Part A amber liquid, Part B pale yellow liquid).
Injected at a 1:1 Part A to Part B ratio through a static mixer at the point of injection.
Does not require water to react.
Reacts within seconds and cures to a rigid, impermeable, closed-cell foam.
Free-rise expansion of 1,500% to 2,600%.
Free-rise compressive strength of 20.2 psi; cured density 1.5 lbs/ft³ free rise and 2.5 lbs/ft³ confined.
Withstands wet/dry cycles.
Listed as non-toxic on the current technical data sheet.
Supports probe grouting, curtain grouting, and pressure injection.
When used to slow high water flows, specify with another Avanti injection resin rather than as a stand-alone seal.

Applications

Large void filling on the exterior of below-grade structures.
Pipe and tank abandonments (place in small lifts; the Part A/Part B reaction is exothermic).
Slowing high water flow in below-grade structures, used with a companion Avanti injection resin.
Probe grouting, curtain grouting, and pressure injection.

Technical Specifications

Property	Value
Catalog number	AV-290 Fast Set
Packaging	22 oz dual cartridge (10.9 fl oz each side), case of 6
Chemistry	Two-component hydrophobic MDI polyurethane
Mix ratio	1:1 through a static mixer
Water required	None
Free-rise expansion	1,500% to 2,600%
Cure	Reacts in seconds to a rigid closed-cell foam
Free-rise density	1.5 lb/ft³ (2.5 lb/ft³ confined)
Compressive strength (free rise)	20.2 psi
Storage	45°F to 95°F (7°C to 35°C), dry

Product documents: AV-290 Fast Set Technical Data Sheet (PDF) | AV-290 FAST-SET Part A Safety Data Sheet (PDF) | AV-290 FAST-SET Part B Safety Data Sheet (PDF)

Frequently Asked Questions

Can AV-290 Fast Set be used for probe grouting?
Yes. AV-290 Fast Set supports probe grouting on below-grade structures. The dual-component hydrophobic foam expands into the void as Part A and Part B react.

Can AV-290 Fast Set be used for curtain grouting?
Yes. AV-290 Fast Set is listed for curtain grouting as well as pressure injection. It is a hydrophobic foam for large below-grade voids, not a hydrophilic crack resin.

Does AV-290 Fast Set expand enough to fill a large void?
Yes. AV-290 Fast Set free-rise expands 1,500 to 2,600 percent. That expansion is how it fills large exterior voids on below-grade structures.

Does AV-290 Fast Set cure to a closed-cell foam?
Yes. AV-290 Fast Set reacts within seconds and cures rigid, impermeable, and closed-cell. The cured foam can take wet and dry cycles.

Should AV-290 Fast Set be used with another Avanti resin on high water flow?
Yes. When AV-290 Fast Set is used to slow high water flows, Avanti specifies it with another Avanti injection resin rather than as a stand-alone seal.

Is AV-290 Fast Set used for pressure injection of below-grade voids?
Yes. AV-290 Fast Set is listed for pressure injection of large below-grade voids. Water is not required for the reaction.

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