Avanti AV-202 Multigrout 1 Gallon

Avanti AV-202 Multigrout is a single component, moisture activated MDI/TDI blended 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

$220.14

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Details

Avanti AV-202 Multigrout Hydrophilic Polyurethane Grout, 1 Gallon (AV-202-1)

Avanti AV-202 Multigrout is a moisture-activated hydrophilic polyurethane injection resin for sealing active leaks in large cracks and joints. It is a high-viscosity MDI/TDI blend for concrete and brick when water is already moving, including manholes and pipe penetrations. The grout can take up to ten times its volume in water, expands as it cures, and stays flexible on moving joints. 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
Catalog number	AV-202-1
Packaging	1 gallon container, 8.8 lbs (4.0 kg) net
Chemistry	Single-component moisture-activated MDI/TDI polyurethane
Water-to-resin ratio	Preferred 1:1; effective up to 10:1 as a gel
Viscosity	3,200 to 6,200 cP at 72°F (22°C)
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)
Storage	45°F to 95°F (7°C to 35°C), dry

Product documents: AV-202® Multigrout Technical Data Sheet (PDF) | AV-202® MULTIGROUT Safety Data Sheet (PDF)

Frequently Asked Questions

Can AV-202 grout brick as well as concrete?
Yes. AV-202 is engineered to seal active water leaks in large cracks or joints in concrete and brick structures. The resin seeks moisture in the pores of either substrate and adheres as it expands.

Can AV-202 be used with AV-219 Fibrotite oakum?
Yes. AV-202 is used in conjunction with AV-219 Fibrotite oakum or AV-215 Resin Rod for Expanded Gasket Placement. The resin wets the oakum and cures into a flexible gasket in the joint.

Does cured AV-202 stay flexible?
Yes. AV-202 cures flexible with excellent adhesive properties. That flexibility is why it is used on moving cracks and joints instead of a rigid foam.

Does AV-202 form a compressive seal as it expands?
Yes. AV-202 reacts with moisture, expands, and packs a compressed network into the crack. That compressive lock, plus adhesion to the wet substrate, is how the TDS describes the seal.

Is AV-202 the grout for high-volume water where high viscosity is required?
Yes. AV-202 is designed for applications where high-volume water flow is an active or potential problem and a high-viscosity chemistry is required. Typical viscosity is 3,200 to 6,200 cP at 72 F.

Can AV-202 be used on a drinking-water structure?
Yes. AV-202 is tested and certified by WQA against NSF/ANSI/CAN 61 Drinking Water System Component. Using AV-203 Multicat with AV-202 is not NSF/ANSI/CAN 61 certified.

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