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Prime Resins, Inc.
2291 Plunkett Road
Conyers, GA 30012
Phone: (770) 388-0626
or (800) 321-7212
Fax: (770) 388-0936


Prime-Flex Polyurethane Grouts - The Concrete Leak/Void Solution
(Click on Product Name for Technical Data)

 

Our line of Prime-Flex polyurethane grout products are used to stop leaks and to fill underground voids without digging. These low viscosity injection resins are long-lasting solutions to leaks in manholes, utility vaults, meter boxes, tunnels, tanks, clarifiers, aeration basins, lift stations, pump stations, catch basins, elevator pits, below-grade walls, equipment pits, lateral connections, mainlines, dams, channels, flumes, swimming pools, concrete basements, and many other areas requiring waterproofing. Some chemical grouts cure to a rigid or flexible foam, while others to a flexible gel.

We offer two major types of leak repair grouts: hydrophilic and hydrophobic. Hydrophilic grouts readily mix with water and seek out water to get an excellent "bite" into the pores of wet concrete. This is important when trying to seal a crack in wet concrete. Hydrophilic grouts are used to stop leaks through cracks and joints in underground structures. When cracks or joints open and close with temperature changes, a tight water seal and bond is maintained due to the flexibility of a hydrophilic grout. Hydrophobic grouts are typically used to fill voids and stabilize soils due to their low viscocity, high expansion rate, and ability to set up under wet conditions without diluting. A hydrophobic resin repels water. When injected into loose soil or voids, it expands and replaces any water present. Because rigid hydrophobic material is not affected by fluctuation in the moisture content of soil, it is virtually unaffected by water table. It retains its strength, size, and impermeability under almost all soil conditions.

Click on type of leak for repair instructions:

Gushing Leak

Hairline Leak


Prime-Flex polyurethane grouts are ideal for Manhole Rehab and are available in convenient
"Quick Mix" cartridges.


Watch the
Leak Repair Video


Read how one municipality stopped I&I with Prime-Flex


Learn how Prime Resins' Oakum is used to seal leaking joints, pipe penetrations and conduits


Are you using the right product for your application?
Click here to find out.

 

 


Prime-Flex 900 LVSF*

Prime-Flex 900LVSF is a solvent free, hydrophilic, liquid polyurethane injection resin designed to seal leaks in concrete and masonry structures. When it contacts water, Prime-Flex 900LVSF expands up to 700% and forms a tough, flexible foam seal that cannot be penetrated by water. Prime-Flex 900LVSF is U.L. certified to conform to ANSI / NSF Standard 61 Drinking Water Systems Components - Health Effects.

 Product Info

 
 Grout Type Hydrophilic
 Viscosity 450 cps
 Cured Material Flexible Foam
 Catalyst No
 Expansions % up to 700%



 


Prime-Flex 900 XLV*

Prime-Flex 900 XLV is a hydrophilic, liquid polyurethane injection resin designed to seal leaks in concrete and masonry structures. When it contacts with water, Prime-Flex 900 XLV expands up to 600% and forms a tough, flexible foam seal that cannot be penetrated by water. Prime-Flex 900 XLV is U.L. certified to conform to ANSI / NSF Standard 61 Drinking Water Systems Components - Health Effects.

 Product Info

 
 Grout Type Hydrophilic
 Viscosity 250 cps
 Cured Material Flexible Foam
 Catalyst No
 Expansions % up to 600%



 


Prime-Flex Hydro Gel SX*

Prime-Flex Hydro Gel SX is a moisture-curing, hydrophilic polyurethane resin designed to stop leaks in below-grade structures. It reacts with water to form either a watertight foam or impermeable gel depending on the water to Hydro Gel SX mix ratio. This product is ideal for stopping leaks in manholes, sewer pipes and utility vaults. Prime-Flex Hydro Gel SX is U.L. certified to conform to ANSI / NSF Standard 61 Drinking Water Systems Components - Health Effects.

 Product Info

 
 Grout Type Hydrophilic
 Viscosity 500 cps
 Cured Material Flexible Gel or Foam
 Catalyst No
 Expansions % up to 400%



 


Prime-Flex 985

Prime-Flex 985 is a two-component urethane resin that produces a strong, rigid foam. Typical applications include filling wet voids, underslab sealing, and filling abandoned pipelines and storage tanks.

 Product Info

 
 Grout Type Two Component
 Viscosity 400 cps
 Cured Material Rigid Foam
 Catalyst No
 Expansions % Up to 20:1



 

Prime-Flex 910

Prime-Flex 910 is a very low viscosity, polyurethane injection resin designed to stabilize soil. When mixed with a catalyst and injected, it migrates through loose soil and into below grade voids. As it comes into contact with ground water, the Prime-Flex 910 begins to react and expands to form a rigid foam. The foam encapsulates loose soil, fills voids and forms a solid, water-tight barrier.

 Product Info

 
 Grout Type Hydrophobic
 Viscosity 40 cps
 Cured Material Rigid Foam
 Catalyst Yes
 Expansions % up to 2900%



 


Prime-Flex 920

Prime-Flex 920 is a low viscosity liquid polyurethane injection resin designed to seal leaks and fill voids behind concrete and masonry structures. When mixed with a catalyst and injected, it migrates through cracks, loose soil and below grade voids. As it comes in contact with ground water, Prime-Flex 920 begins to react and expands to form a tough, rigid foam seal that cannot be penetrated by water. Prime-Flex 920 is typically used to seal gushing leaks, fill voids and stabilize soil.

 Product Info

 
 Grout Type Hydrophobic
 Viscosity 120 cps
 Cured Material Rigid Foam
 Catalyst Yes
 Expansions % up to 2900%


Product Comparison Chart

 

 

Prime-Flex 900 LVSF*

Prime-Flex 900 XLV*

Prime-Flex Hydro Gel SX*

Prime-Flex 985

Prime-Flex 910

Prime-Flex 920

 
 

Grout Type

Hydrophilic

Hydrophilic

Hydrophilic

Two Component

Hydrophobic

Hydrophobic

 
 

Viscosity

450 cps

250 cps

500 cps

400 cps

40 cps

120  cps

 
 

Cured Material

Flexible Foam

Flexible Foam

Flexible Gel or Foam

Rigid Foam

Rigid Foam

Rigid Foam

 
 

Catalyst Required

No

No

No

No

Yes

Yes

 
 

Expansion %

Up to 700%

Up to 600%

Up to 400%

Up to
20:1

Up to 2900%

Up to 2900%

 

* Prime Flex 900 LVSF, 900 XLV, and Hydro Gel SX are UL Certified to comply with ANSI/NSF Standard 61 Drinking Water System Components - Health Effects.

 

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2291 Plunkett Rd. Conyers, GA 30012
800.321.7212 or 770.388.0626