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Avanti AV-290 Fast Set Dual Cartridge - Case of 6
Avanti AV-290 Fast Set is a two-component hydrophobic MDI-based polyurethane resin for rapidly filling large voids outside below-grade structures where high water flow is present. This case holds 6 dual cartridges, each with 10.9 fl oz of Part A and 10.9 fl oz of Part B, plus 6 static mixers.
- Mixes 1:1 through a static mixer; no water needed to react
- Free rise expands 1,500% - 2,600% and cures rigid and closed-cell
- Not a stand-alone solution for stopping high flows
$319.23
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Avanti AV-290 Fast Set Dual Cartridge - Case of 6
Avanti AV-290 Fast Set is a mid-range viscosity, two-component, hydrophobic MDI-based polyurethane resin intended for rapidly filling large voids on the exterior of below-grade structures where high water flow is present. Part A and Part B mix through a static mixer at the point of injection at a 1:1 ratio and quickly form a very rigid grout; no water is needed for the reaction. The cured foam is rigid, impermeable and closed-cell, and withstands wet/dry cycles. When AV-290 is used to slow high water flows it is not a stand-alone solution and should be used together with one of Avanti’s injection resins. The reaction is exothermic: when filling large abandonment voids, work in small lifts and let each cool before placing the next.
Key Features
- Two components mix 1:1 through a static mixer at the point of injection
- No water needed for the reaction; reacts within seconds
- Free rise expands 1,500% - 2,600%
- Cures rigid, impermeable and closed-cell; withstands wet/dry cycles
- Goes on by probe grouting, curtain grouting and pressure injection
Applications
- Rapidly filling large voids below grade
- Pipe and tank abandonments
- Slowing high flows in below-grade structures, with an Avanti injection resin
- Exterior void filling around below-grade structures with high water flow
Technical Specifications
| Property | Value |
|---|---|
| Type | Two-component hydrophobic polyurethane grout, MDI-based (Part A and Part B) |
| Mix ratio | 1:1 Part A to Part B through a static mixer; no water required |
| Free rise expansion | 1,500% - 2,600% |
| Cure time | 40 seconds (laboratory) |
| Cured density | 1.5 lb/ft3 free rise; 2.5 lb/ft3 confined |
| Compressive strength (free rise) | 20.2 psi |
| Cured appearance | Pale yellow, very rigid |
| Viscosity | Part A 200 cP; Part B 600 cP; both at 72 F (22 C), plus or minus 10% |
| Flash point | Above 200 F (93 C), both parts |
| Use temperature | Best results 60 F - 90 F (16 C - 32 C); warm to about 72 F (22 C) when cold, no open flame |
| Storage | 45 F - 95 F (7 C - 35 C), dry, container tightly closed; packaged under dry nitrogen |
| Shipping | Not regulated under US DOT regulations (TDS and SDS section 14, both parts) |
| Safety | Part A SDS lists respiratory and skin sensitization; use OSHA-approved PPE and follow the SDS |
| Pack | Case of 6 dual cartridges: Part A 10.9 fl oz (325 ml) and Part B 10.9 fl oz (325 ml) each, with 6 static mixers |
| Part number | AV-290-DUAL-CARCS |
Product documents: Avanti AV-290 Fast Set Data Sheet (PDF)
Frequently Asked Questions
How is AV-290 Fast Set mixed?
Part A and Part B are mixed through a static mixer at the point of injection, at a 1:1 Part A to Part B ratio. No water is needed for the reaction. Avanti recommends its static mixers for cartridge or pump use, and says not to mix the components in any unapproved container. Gently shake the cartridges before use.
How fast does it cure and how much does it expand?
AV-290 reacts within seconds, with a laboratory cure time of 40 seconds, and free rise expansion of 1,500% - 2,600%. The cured foam is pale yellow and very rigid, with a density of 1.5 lb/ft3 at free rise and 2.5 lb/ft3 confined, and a free rise compressive strength of 20.2 psi.
Can AV-290 stop a high water flow by itself?
No. When AV-290 is used to slow down high water flows, Avanti states it should not be used as a stand-alone solution but together with one of its injection resins.
What is in the case?
Six dual cartridges, each holding 10.9 fl oz (325 ml) of Part A and 10.9 fl oz (325 ml) of Part B, with 6 static mixers.
What temperature and safety limits apply?
For best results use AV-290 between 60 F and 90 F (16 C and 32 C), warming it to about 72 F (22 C) without an open flame when the site is cold; at 45 F (7 C) the viscosity rises and Part A and Part B mix less easily. The reaction is exothermic, so fill large voids in small lifts. Part A is an MDI isocyanate that the SDS lists as a respiratory and skin sensitizer; wear OSHA-approved PPE.
How do I clean the equipment?
Do not use water. Flush equipment with AV-208 Technical Grade Acetone before and after use to remove moisture, flush uncured resin with AV-284 Pump Wash, and remove cured resin with AV-222 Cleaner.
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