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Mainspray
Live internal sealing of cast iron joints

Product List
Mainspray Animation
More information on Leak Sealing
30 +/- cast iron joints can be sealed in one section from a single excavation

Two to three sections can be sealed in a day

Mainspray
  • Automatic electronic monitoring equipment built into the spray head precisely locates the joints and directs the sprayed anaerobic sealant.


  • Sprayed sealant wicks up into the joint cavity, closing off leak paths and sealing the leak.


  • The sealant is delivered in controlled quantities to each joint and any excess sealant fully cures in the main within 72 hours.


  • The system works equally well on Low Pressure or Medium Pressure mains


Mainspray Process


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