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Avanti AV-202 Multi Grout 5 Gallon AV-202-5
Avanti AV-202 Multigrout is a single component polyurethane injection resin designed for sealing active water leaks in large cracks or joints in concrete structures. It can absorb up to 10 times its weight in water, creating a tough and impermeable seal.
- Stops active water leaks fast
- Used successfully in manhole sealing and pipe penetrations
- Excellent choice for moving cracks and joints
$652.86
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Avanti AV-202 Multigrout Hydrophilic Polyurethane Grout, 5 Gallon Pail (AV-202-5)
Avanti AV-202 Multigrout is a single-component, moisture-activated hydrophilic polyurethane for active water in large cracks and joints in concrete and brick. High-viscosity chemistry is what holds it in high-volume flow on manholes, pipe penetrations, and moving joints. It can take up to ten times its volume in water and cures to a tough, flexible seal, including underwater work. WQA certifies it against NSF/ANSI/CAN 61.
Key Features
- Single-component, moisture-activated hydrophilic polyurethane (MDI/TDI blend).
- Tested and certified by WQA against NSF/ANSI/CAN 61 Drinking Water System Component.
- 100% solids and non-corrosive.
- Free-rise expansion of 300% to 600%.
- Accepts up to 10 times its volume in water.
- High viscosity of 3,200 to 6,200 cP at 72°F (22°C).
- Cures flexible with excellent adhesive properties.
- May be pumped as a single component without pre-mixing.
- Grouting techniques include Expanded Gasket Placement (EGP), Needle Penetration (NPT), and Variable Pressure Application (V-PAT) crack injection.
- Optional AV-203 Multicat cream and gel-time accelerator (not NSF/ANSI/CAN 61 certified when used).
Applications
- Large cracks or joints in concrete and brick.
- High-volume water flow where a high-viscosity chemistry is required.
- Manhole sealing and pipe penetrations.
- Moving cracks and joints.
- Use with AV-215 Resin Rod or AV-219 Fibrotite (oakum).
- Underwater applications.
Technical Specifications
| Property | Value |
|---|---|
| Manufacturer / Product Name | Avanti International AV-202® Multigrout hydrophilic polyurethane grout |
| TDS Revision | Rev. 07.2026 |
| Part Number | AV-202-5 |
| Formulation | Single-component, moisture-activated MDI/TDI blended polyurethane injection resin. Uncured: brown resin. Cured: milky colored, flexible. |
| Water-to-Resin Ratio | Preferred 1:1 for a strong, impermeable bond; effective up to 10:1 as a gel. May be pumped as a single component without pre-mixing. |
| Viscosity | 3,200 to 6,200 cP at 72°F (22°C) |
| Flash Point | 253.4°F (123°C) |
| Specific Gravity | 1.090 at 72°F (22°C) ± 3% |
| Density | 9.09 lbs. per gal. ± 3% (1.090 kg/L ± 3%) |
| Free-Rise Expansion | 300% to 600% |
| Water Uptake | Up to 10 times its volume in water |
| Certification | WQA NSF/ANSI/CAN 61 Drinking Water System Component |
| Use Temperature | 60°F to 90°F (16°C to 32°C). Warm to about 72°F (22°C) if site temperatures are low. Do not use an open flame as a heat source. Viscosity can rise significantly at 45°F (7°C). |
| Cream / Gel at 1:1 (lab) | 40°F: 0:39 / 2:47; 50°F: 0:35 / 1:54; 60°F: 0:29 / 1:39; 70°F: 0:21 / 1:12; 80°F: 0:17 / 0:47 (min:sec). Cream time is not applicable above 1:1. Field times vary with site water. |
| Tensile Strength / Elongation | Consult Avanti representative |
| Storage | 45°F to 95°F (7°C to 35°C), dry. Keep tightly closed. Packaged under dry nitrogen. Do not store catalyzed grout mixed with AV-203. |
| Shipping | Not regulated under US DOT Regulations |
| SDS | AV-202 MULTIGROUT, last revision September 15, 2021 |
| Packaging | 5 gallon pail, 44 lbs. (20 kg) net (Avanti pail pack-out). Cartridge approximately 10.1 fl. oz. (approximately 300 ml), case of 12; container 8.8 lbs. (4.0 kg); drum 484 lbs. (219.5 kg) also listed on the TDS. |
Product documents: AV-202® Multigrout Technical Data Sheet (PDF) | AV-202® MULTIGROUT Safety Data Sheet (PDF)
Frequently Asked Questions
Is AV-202 meant for high-volume water in large cracks or joints?
Yes. AV-202 is a high-viscosity hydrophilic polyurethane for large cracks or joints in concrete and brick when high-volume water is already moving, or is likely to. That viscosity is what the TDS calls for when a thin resin will not stay in the opening.
Can AV-202 seal a leaking manhole?
Yes. AV-202 is used successfully in manhole sealing. Moisture activates the resin so it can chase water in the structure and cure to a tough, flexible seal.
Does AV-202 work at pipe penetrations?
Yes. AV-202 is used at pipe penetrations in concrete and brick. The grout seeks moisture in the annular space and expands to form a compressive seal.
Can AV-202 stay in a moving crack or joint?
Yes. AV-202 is an excellent choice for moving cracks and joints. It cures flexible with adhesive properties so the seal can move with the structure.
Can AV-202 be used underwater?
Yes. AV-202 can be used in underwater applications. Moisture activates the resin, so standing water is a listed use, not a reason to skip the grout.
Does AV-202 take on water as it cures?
Yes. AV-202 can accept up to ten times its volume in water and free-rise expands 300 to 600 percent. That uptake is how it fills a wet opening and still cures to a tough, impermeable seal.
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