AV-248 Flexseal
AV-248 Flexseal™ is a moisture activated MDI-based polyurethane resin. The water/moisture activation is a two-step chemical reaction and is catalyzed by mixing AV-249 Flexseal AC™ with AV-248. Injected as a single component, AV-248 is designed to react quickly with moisture to seal active and potential water leaks in cracks or small annular spaces that are susceptible to wet/dry cycles and where flexibility is needed. AV-248 should always be injected into small, narrow, confined spaces to provide restricted expansion of the grout. AV-248 cures flexible and impermeable.
AV-249 Flexseal AC is the catalyst designed exclusively for use with AV-248 Flexseal. Typically, one container of AV-249 is used per pail of AV-248. Depending on the desired reaction time, AV-249 may be doubled.
APPLICATIONS, BENEFITS, AND FEATURES OF AV-248 FLEXSEAL:
- For use above or below grade in humid or arid atmospheres
- Fills various cracks and pipe penetrations
- Stops leaks in concrete structures
- Designed for tunnels, mines, dams, reservoirs, block walls and structures that may shift
- Free rise expands 400% – 600%
- Solvent-free system
- Controllable reaction time by adjusting AV-249 Flexseal AC volume
- Withstands wet/dry cycles
- Unique hydrophobic that cures flexible and closed cell