Urethanes - Hydrophilic
Avanti’s hydrophilic urethanes deliver top-tier performance for sealing active water leaks in concrete structures. These moisture-activated polyurethane resins are engineered to address a variety of sealing challenges and require a moist environment for optimal performance.
Our range features products with varying viscosities to suit different application needs, from high-viscosity formulations ideal for large cracks and high-water flow areas to low-viscosity options that permeate tight joints. These resins cure to a tough, impermeable finish or a flexible, closed-cell foam, depending on the formulation. They offer superb adhesive qualities and are frequently used with backer materials like Oakum or Resin Rod for optimal results.
Whether sealing fine cracks in below-grade structures or managing leaks in confined spaces, Avanti’s hydrophilic urethanes provide reliable, long-lasting solutions for effective water control and soil stabilization.
AV-202® Multigrout
AV-202® Multigrout is a versatile, single-component polyurethane injection resin formulated with an MDI/TDI blend. AV-202 Multigrout is certified for NSF/ANSI/CAN 61 - Drinking Water System Components.
AV-202-LV Multigrout LV
AV-202-LV Multigrout LV is the low viscosity version of the original AV-202 Multigrout - a single component, moisture activated MDI/TDI blended polyurethane injection resin.
AV-202-NTP Multigrout NTP
AV-202-NTP Multigrout NTP™ is a versatile, single-component polyurethane injection resin formulated with an MDI/TDI blend to stop active water leaks in large cracks or joints.
AV-315 Microfoam
AV-315 Microfoam™ is a single component, moisture-activated, polyurethane injection resin designed for sealing active
water leaks in very fine cracks or tight joints in concrete and brick structures.
AV-330 Safeguard
AV-330 Safeguard™ is a 100% MDI-based, single component, mid-range viscosity, moisture-activated polyurethane
injection resin designed for sealing active leaks in below-grade structures. NSF/ANSI/CAN 61 Drinking Water System Component certified.
AV-330-NTP Safeguard NTP
AV-330-NTP Safeguard NTP™ is a 100% MDI-based, single component, mid-range viscosity, moisture-activated
polyurethane injection resin designed for sealing active leaks in below-grade structures.






