DE NEEF® Waterproofing Injection Solutions

Leaks stop here: Fast, proven, durable.

Overview

The DE NEEF® portfolio provides waterproofing injection solutions that stop leaks under any circumstances and in any application - foundations, infrastructure and more. Nobody plans for a leak, so when one occurs it usually represents a cost overrun and a setback for a construction project. The ability to quickly and permanently stop a leak in any part of a construction is therefore invaluable for contractors and owners.

Seal leaks almost as fast as they appear

The major advantages of DE NEEF® products include the fact that they are easy to use, are not diluted, and can be applied quickly and reliably. The portfolio is mostly based on single-component, closed cell, hydrophobic polyurethanes, which are both durable and lasting. Therefore, leaks that are stopped once will remain stopped. For taking care of leaks that slow down the progress of a job site, endanger the future of a construction, or prevent full use of a building, DE NEEF® has become the world's most trusted brand.

Solutions for every leak

DE NEEF® has a variety of formulations for a number of different applications:

  • For owners who need to repair and maintain buildings and infrastructure projects
  • For contractors who need to shore up deep foundations during excavation
  • For installers and applicators who are charged with specialized leak repair

In every case, there's a DE NEEF® solution that's best-suited for the task at hand—including deep foundations, underground spaces, tunnels, mass rapid transport infrastructure and sewer repair applications.

Certified around the globe

We has done extensive testing of DE NEEF® products to ensure that performance claims are backed up in the field. DE NEEF® products have multiple certification levels including CE certification for use in the European Union, and has potable water certifications from around the world.

Solutions for every structure

Concrete or masonry—no matter which type of construction, DE NEEF® can fix the leak. From the ground breaking through completion, DE NEEF® products can be used for soil injections and water control and remediation. DE NEEF® solutions can also be used during excavation or tunnel boring. DE NEEF® products can be used in every stage of underground construction.

Supported globally, available locally

No two leaks are exactly the same—the only thing that any two leaks have in common is that they have to be fixed as fast as possible. The DE NEEF® portfolio offers solutions for all possible challenges in leak sealing and soil injections. With local availability, there's no waiting for the product to arrive—DE NEEF® is readily available.

With a global sales and technical support staff, contractors can trust that DE NEEF® solutions will perform. Don't wait for leaks to slow you down—contact GCP today to learn how to use DE NEEF® on your project.

Leaks Stop Here. Fast. Proven. Durable.

Products & Accessories

Products

  • Product Name
  • Description
  • Key Benefits
  • Applications Type
DE NEEF® CFL PURe Data Sheet
Description

DE NEEF® CFL PURe is a hydrophobic polyurethane designed for void filling and barrier wall grouting.

Key Benefits
  • Free foam expansion up to 20 times
  • Contains no volatile solvents
  • Single component
Application Type
  • Sealing spaces with differential movement
  • Filling voids
  • Barrier wall grouting
DE NEEF® Cut Cat Fast and Extra Fast PURe Data Sheet
Description

DE NEEF® Cut Cat Fast and Extra Fast PURe are designed to be mixed with DE NEEF® Cut PURe to allow for faster reaction times in applications involving the cut-off of gushing water with a high to very high pressure and speed.

Key Benefits
  • Faster reaction times for Cut PURe.
  • Enhanced cold weather reactivity.
  • Phthalate free, unregulated for transport and storage.
Application Type
  • Sealing larger volume leaks thru concrete cracks and fissures
  • Cold weather grouting
DE NEEF® Cut PURe Data Sheet
Description

DE NEEF® Cut PURe is a hydrophobic polyurethane designed to fill large voids in rock fissures, gravel layers, joints, and cracks in concrete structures and for the cut-off of gushing water.

Key Benefits
  • Contains no volatile solvents
  • Single component
  • Will not dilute in water
Application Type
  • Sealing larger volume leaks
  • Filling voids
  • Stabilizing soil or gravel
DE NEEF® Flex LV PURe Data Sheet
Description

DE NEEF® Flex LV PURe is a hydrophobic polyurethane designed to form a flexible gasket when injected into cracks and joints in concrete structures.

Key Benefits
  • Single component
  • Controlled reaction time
  • Improved low temperature performance
Application Type
  • Sealing leaking cracks in concrete 0.02” and wider
  • Sealing moving and non-moving joints in concrete
DE NEEF® Flex SLV PURe Data Sheet
Description

DE NEEF® Flex SLV PURe is an ultra low viscosity hydrophobic polyurethane designed to be injected into hairline cracks in concrete structures.

Key Benefits
  • Super low viscosity for hairline cracks
  • Free foam expansion up to 18 times
  • Contains no volatile solvents
Application Type
  • Sealing fine and hairline leaking cracks in concrete 0.02” and finer
  • Injecting grout tubes (INJECTO®)
DE NEEF® Gelacryl Superflex AR Data Sheet
Description

DE NEEF® Gelacryl Superflex AR is a system composed of DE NEEF® Gelacryl Superflex methacrylic acrylate copolymer resin and DE NEEF® Reinforcing Agent.

Key Benefits
  • Low viscosity – penetrates into fine cracks 
  • Reinforcing agent provides reduced shrinkage 
  • NSF/ANSI 61 Certified for use with potable 
  • Water Non-corrosive and non-toxic 
Application Type
  • Hairline and spider cracks in concrete 
  • Re-injection of failed polyurethane grout Expansion & moving joints Honeycombed concrete 
  • Curtain grouting 
  • Potable water applications 
DE NEEF® Gelacryl Superflex Data Sheet
Description

DE NEEF® Gelacryl Superflex is a unique blend of methacrylic acrylate copolymers, combining the low viscosity of traditional acrylate resins with the elongation and adhesion typically associated with polyurethane resins. 

Key Benefits
  • Exceptionally low viscosity – penetrates cracks 0.1mm (0.004”). 
  • Post reaction expansion of up to 56% 
  • ANSI/NSF 61 Certified for use with potable
Application Type
  • Hairline and spider cracks in concrete 
  • Re-injection of failed polyurethane 
  • Grout Expansion & moving joints
DE NEEF® HOT SHOT Cartridges Data Sheet
Description

DE NEEF® Cut HOT SHOT Cartridge comes complete with cartridge, dasher rod and nozzle.

Key Benefits
  • Free foam expansion up to 18 times
  • Contains no volatile solvents
  • Single component
Application Type
  • Sealing high pressure leaks through concrete cracks and fissures
  • Filling voids
  • Sealing pipe penetrations
DE NEEF® INJECTO® PURe Data Sheet
Description

DE NEEF® INJECTO® PURe is an ultra low viscosity hydrophobic polyurethane designed to be used with INJECTO® Grout Tube for sealing construction joints.

Key Benefits
  • Single component
  • Will not dilute in water
  • Controlled reaction time
  • Tough foam with flexibility
Application Type
  • Repairing existing leaky joints
  • Waterstop for new concrete structures
  • Flexible waterstop in concrete joints
DE NEEF® Pipe Plug Kit Data Sheet
Description

DE NEEF® Pipe Plug Kit is a unique product for sealing electrical conduits and other irregular annular spaces.

Key Benefits
  • Free foam expansion 15 times initial volume
  • No volatile solvents
  • NSF/ANSI 61 Potable water approved
Application Type
  • Electrical conduits
  • Filling irregular spaces
DE NEEF® Reinforcing Agent Data Sheet
Description

DE NEEF® Reinforcing Agent is a VOC compliant latex emulsion designed to reinforce polyurethane and acrylic resins.

Key Benefits
  • Improved tensile and bond strengths
  • Very adhesive
  • Contains no volatile solvents
Application Type
  • Reinforcing agent for DE NEEF® Sealfoam PURe.
  • Modifier for DE NEEF® Gelacryl and DE NEEF® Superflex acrylate resins
DE NEEF® Sealfoam PURe Data Sheet
Description

DE NEEF® Sealfoam PURe is a single component, low viscosity, hydrophilic MDI based polyurethane resin.

Key Benefits
  • Free foam expansion up to 5 times
  • High bond and tensile strength
  • Withstands thermal movement
Application Type
  • Sealing dry moving non-structural cracks when used at a 1:1 ratio with water.
  • Sealing wet moving non-structural cracks vwhen used neat.
DE NEEF® Soil PURe Data Sheet
Description

DE NEEF® Soil PURe is a hydrophobic polyurethane that, when used alone or with DE NEEF® Soil Cat PURe, is designed to increase the bearing capacity of permeable soil.

Key Benefits
  • Free foam expansion up to 3 times
  • Contains no volatile solvents
  • Very high strength with no creep
Application Type
  • Stabilizing soil beneath slabs and roadways
  • Confinement of hazardous materials in soil
  • Creating below grade cut-off curtain wall
DE NEEF® Washing Agent Data Sheet
Description

DE NEEF® Washing Agent is a non-flammable solvent mixture for cleaning polyurethane grout pumps and equipment.

Key Benefits
  • Non-flammable
  • Anhydrous
Application Type
  • Flushing out and cleaning pumps and lines used to inject polyurethane grouts.
DE NEEF® AC-400 Acrylate Chemical Grout Resin Data Sheet
Description

DE NEEF® AC-400 Chemical Grout is an acrylamide free acrylate monomer system sealant designed, for water control during tunneling operations, for curtain grouting, and for excavatable soil consolidation in situations where low tensile and compressive strengths can be tolerated.

Key Benefits
  • Acrylamide free
  • Pumps without modification to existing grouting equipment
  • Extremely low viscosity grout (1-3 cPs)
Application Type
  • Water control in tunneling
  • Curtain grouting
  • Soil support for excavation
  • Mainline and lateral sewer grouting
DE NEEF® Denepox I-40 Data Sheet
Description

DE NEEF® Denepox I-40 is an ultra low viscosity, 100% solids, two component, moisture insensitive epoxy injection resin system designed specifically for gravity feeding or pressure injection of cracks.

Key Benefits
  • Ultra low viscosity
  • Moisture insensitive
  • 100% solids
Application Type
  • Hairline structural cracks
  • Gravity feed horizontal cracks
  • Porous concrete surfaces
TYTRO SI 550 Data Sheet
Description

(Formerly DE NEEF® Organosol 550 DT) Fast reacting, non-expanding, two-component silica-urea injection grout.

Key Benefits
  • Non-expanding, safe for weak strata and soils
  • Reacts underwater without dilution
  • High bond and compressive strength
  • Fire resistant, Class B2 per DIN 4102 Part 1
Application Type
  • Bonding and consolidating strata in underground mining operations such as long walls, mine seals and shafts.
  • Soil and rock injections where non-expanding grouts are required.
  • Sealing and water control injection in underground excavations.

Accessories

  • Accessory Name
  • Description
  • Key Benefits
  • Applications Type
DE NEEF® MC 800® Data Sheet
Description

DE NEEF® MC 800® FINE Cement is a blast furnace slag based cement composed of ultrafine particles, designed for injection into loose soils, rock, concrete, and down-hole applications.

Key Benefits
  • High cured strength
  • Excellent durability
  • Low permeability
Application Type
  • Geotechnical grouting
  • Oil well remedial cementing
  • Seal off underground streams
DE NEEF® Reinforcement Foam Data Sheet
Description

DE NEEF® Reinforcement Foam is a thermally reticulated polyester sheet product used in joints or voids to stabilize and reinforce polyurethane and acrylate chemical grouts.

Key Benefits
  • Very high permebility
  • Easy to cut to size on site
  • Simple to install
Application Type
  • Chemical grouts in joints
  • Chemical grout in voids
DE NEEF® MC 300® Data Sheet
Description

DE NEEF® MC 300® ULTRAFINE Cement is a blast furnace slag based cement composed of ultrafine particles, designed for injection into loose soils, rock, concrete, and down-hole applications.

Key Benefits
  • High cured strength
  • Excellent durability
  • Low permeability
Application Type
  • Geotechnical grouting
  • Oil well remedial cementing
  • Seal off underground streams
DE NEEF® MC 500® Data Sheet
Description

DE NEEF® MC 500® MICROFINE® Cement is a blast furnace slag based cement composed of ultrafine particles, designed for injection into loose soils, rock, concrete, and down-hole applications.

Key Benefits
  • High cured strength
  • Excellent durability
  • Low permeability
Application Type
  • Geotechnical grouting
  • Oil well remedial cementing
  • Seal off underground streams