Water-activated, flexible polyurethane foam or gel injection resin
Prime Flex Hydro Gel EXP is a versatile, easy-to-use single component, water activated, hydrophilic polyurethane injection resin
for sealing actively leaking joints and cracks in below-grade concrete structures. It forms either a closed cell, watertight foam or
impermeable gel depending on the water to resin mix ratio. Cured material remains flexible and has excellent adhesion. It can
also be used for soil binding for slough control.
Primary Applications
Crack injection to seal leaks, particularly structures subject to
movement or vibration. Curtain grouting manholes to seal
cracks and penetrations Soil binding for slough control and
sidewall support Example structures and settings:
• Manholes
• Sanitary sewers
• Dams
• Below-grade concrete walls
• Tunnels
• Elevator service pits
• Utility vaults
• Tanks
• Excavation pits
• Tunneling launch pits
• Sealing joints in corrugated metal pipes
Advantages
• Phthalate-free
• Forms flexible foam or gel with excellent adhesion
• Versatile and easy to use; seals tight or wide cracks
• High elongation allows for thermal or structural movement
• Can be used with oakum to seal wide gaps
• Non-flammable, non-corrosive
• Can be used underwater
Packaging
• 5 gallon pail
Technical information
Typical Data: Physical Properties at 73°F (23°C) - Liquid. Properties will vary depending upon site conditions, application method
and equipment, material temperature, and curing conditions. Gel time 70°F (21°C) @ 8:1 Mix ratio - 50-60 seconds. Gel time
70°F (21°C) @ 1:1 Mix ratio: 60-70 seconds.
