Tunnel Vision installs chemical grout to stop groundwater infiltration in manholes, wet wells, culverts and tunnels. The polyurethane grouts are injected into joints and cracks or through the wall of the structure. The grout reacts and expands to fill voids and cracks with a permanent waterproof seal that remains flexible.

One the chemical grouts the Tunnel Vision injects is SealGuard II, is a highly reactive two-component hydrophobic polyurethane water stop system. SealGuard II is an extremely fast reacting (1-3 seconds), rapid sealing, and high early strength material when pumped under pressure.

SealGuard II (link)