Concrete manholes have a been a part of the standard sewer infrastructure for decades, composite and fiberglass manholes are an increasingly popular alternative due to their outstanding resistance to many chemicals and sewer gases.

All manholes, no matter of their composition or design, have penetrations and joints which are susceptible to water infiltration.

Injection Repair Grouts for Sealing Manholes 

• SealBoss 1510 – Original Water Stop Foam – MDI based hydrophobic one component polyurethane grout
  It is a gold standard for water stop and leak seal injection product. 1510 is very well suited for sealing manholes with slow and fast moving bodies of water infiltration. The product is activated and controlled with SealBoss 15X Accelerator. ANSI/NSF Drinking Water Contact Certified.
  
  
• SealBoss  1570 – Flexible Water Stop Foam – MDI based hydrophobic one component polyurethane grout
  Extra flexible injection foam for water stop and leak seal injection. The product is activated and controlled with SealBoss 15X Accelerator. ANSI/NSF Drinking Water Contact Certified.

• SealBoss FlexGel – MDI based hydrophilic one component flexible polyurethane grout
  Flexgel is used for curtain/bladder soil injection located behind leaking structures, to seal cracks and joins. The highly flexible SealBoss ® FlexGel works very well in wet and moving cracks as it works as a flexible bridge between substrates. Depending on the water amount incorporated during reaction the product either forms a flexible foam or a gel. ANSI/NSF Drinking Water Contact Certified.

To fill leaking manhole joints the contractor can soak the Polyurethane grout in SealBoss ® SealOakum to fix the leaking manhole joints. It is also possible to use an open cell backer rod as a medium to soak the product. 

These types of municipal jobs can be of large scale and very profitable for the contractor. The SealBoss ® Team is here to assist you, call us now at 714-662-4445.

We supply a complete system to suit your exact injection and waterproofing needs, including a very large packer selection, professional pumps and a comprehensive line of construction chemicals.

See our article  “How to Stop Water Inflow & Infiltration — I & I – Repair”