AV-258-MV PermaFlex

AV-258-MV PermaFlex™ is a moisture activated MDI-based polyurethane resin. The water/moisture activation is a two-step chemical reaction and is catalyzed by mixing AV-259-MV PermaFlex AC™ with AV-258-MV. Injected as a single component, AV-258-MV 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-258-MV should always be injected into small, narrow, confined spaces to provide restricted expansion of the grout. AV-258-MV cures flexible and impermeable.

AV-259-MV PermaFlex AC is the catalyst designed exclusively for AV-258-MV PermaFlex MV. Typically, one container of AV-259-MV  is used per pail of AV-258-MV. Depending on the desired reaction time, AV-259-MV may be doubled.

APPLICATIONS, FEATURES, AND BENEFITS OF AV-258-MV:

• 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 700% – 1,200%
• Controllable reaction time by adjusting the amount of AV-259-MV PermaFlex AC
• Withstands wet/dry cycles
• Should always be injected into small, narrow, confined spaces to provide restricted expansion