Manhole applications

Every structure
under the street.

Spray-applied ArmorThane polyurea restores sanitary manholes, storm structures, wet wells, vaults and interceptors — without excavation.

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Sanitary sewer manholes

Stop the acid. Seal the walls.

In sanitary sewers, hydrogen sulfide gas is converted by bacteria into sulfuric acid on the crown and walls of the structure. Unprotected concrete softens, aggregate falls out and rebar is exposed. A continuous polyurea liner isolates the concrete from that environment and from groundwater at the same time.

Halts microbial-induced corrosion (MIC)
Seals active infiltration once leaks are plugged
Restores a smooth, cleanable surface
No excavation or road reconstruction

Storm structures

Built for freeze-thaw, salt and grit.

Catch basins, curb inlets and storm junction structures take a beating from abrasive runoff, de-icing salts and freeze-thaw cycling. Polyurea’s toughness and elongation let it flex with the structure instead of cracking, keeping water and soil where they belong.

High abrasion and impact resistance
Flexes through freeze-thaw movement
Prevents soil loss and sinkholes around structures
Fast turnaround between storm events

Lift stations & wet wells

The harshest zone in the system.

Turbulence at lift stations and in wet wells strips hydrogen sulfide out of wastewater, making them some of the most corrosive structures a utility owns. Spray-applied polyurea builds a thick, seamless barrier around pump bases, walls and penetrations with minimal downtime for bypass pumping.

Thicker builds for severe exposure
Seamless detailing around penetrations
Minimizes bypass pumping time
Protects pump and rail anchorage areas

Vaults & junction chambers

Keep critical equipment dry.

Valve, meter, electrical and utility vaults fail from the outside in when groundwater finds a joint. A monolithic membrane across the walls, floor and frame keeps the chamber dry and the equipment inside serviceable for years longer.

Waterproofs joints and pipe penetrations
Protects valves, meters and electrical gear
Slip-resistant floor finishes available
Works on precast and cast-in-place concrete

Interceptors & sumps

Chemistry that shrugs off FOG.

Grease interceptors, oil-water separators and industrial sumps combine fats, oils, grease and aggressive process chemistry. Polyurea’s chemical resistance and seamless finish protect the concrete and make the structure easier to clean and inspect.

Resists fats, oils, grease and many chemicals
Smooth surface is easier to pump and clean
Ideal for restaurants, plants and campuses
Short shutdowns for occupied facilities

Chimney, frame & bench

Seal the top and bottom, too.

Much of the inflow into a manhole sneaks in at the chimney, between adjusting rings and under the frame — while the bench and invert take constant flow and abrasion. Spraying them continuously with the barrel gives you a true top-to-bottom seal instead of a liner with weak edges.

Continuous seal across adjusting rings
Covers the frame-to-chimney joint
Rebuilds and protects bench and invert
Eliminates edge terminations where leaks start

Built to resist

What a polyurea liner stands up to.

Hydrogen sulfide (H2S)
Sulfuric acid
Groundwater infiltration
Stormwater inflow
Freeze-thaw cycling
Road salt & chlorides
Abrasive grit
Fats, oils & grease
Root intrusion at joints
Vibration & traffic loading
Many industrial chemicals
High-pressure cleaning

Always confirm chemical exposure and service conditions against the product data sheet and project specification.

Start your own business

Every application is a business opportunity.

The same rig and training cover every structure on this page. Find out what it takes to start your own manhole rehab company.

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Every structureunder the street.