DE NEEF® HA CUT CFL AF

Next generation, non-phthalate, closed cell, 1-component, high performance, low viscosity, hydrophobic, hydro-active, semi-rigid polyurethane injection grout for cutting off gushing water leaks with a high flow rate and/or high hydrostatic pressure in applications where both high strength and flexibility are required.

Product Description

In its uncured form, HA Cut CFL AF is a dark brown, non-flammable liquid without phthalate plasticizers. HA Cut CFL AF is a next generation 1-component injection resin with improved waterproofing and water cutting performance. When it comes in contact with water, the grout expands and quickly (depending on temperature and the amount of catalyst HA Cut Cat AF used) cures to a tough, rigid, closed-cell polyurethane foam that is generally unaffected by corrosive environments.

Product Advantages

  • ADR free transport
  • Next generation resin with improved waterproofing performance.
  • Improved cell structure of the cured compound resulting in better mechanical properties and durability.
  • Non-phthalate  resins, REACH compliant.
  • Improved performance at temperatures below 5°C, no crystallization of HA Cut Cat AF.
  • Fast, Extra-Fast and Super Extra-Fast catalysts available for applications where the standard catalyst reaction speed is insufficient due to low temperatures or very high-water flow. (See respective Technical Data Sheet).
  • HA Cut CFL AF forms a semi-rigid gasket with high strength in the joint or crack.
  • Non-flammable, non-solvent formulation.
  • User friendly: 1-component material.
  • Controllable reaction times: by using catalyst curing times can be reduced.
  • Cured compound is resistant to most organic solvents, mild acids, alkalis and micro-organisms (*).
  • KTW Potable Water approved.

(*) For chemical resistances please contact your local GCP representative.

Field of Application

• Designed for cutting off gushing water leaks with a high flow rate and/or high pressure.

• Used to block water leaks in diaphragm walls.

• Filling large voids such as rock fissures, crushed faults, gravel layers, joints, cracks and honeycombs in concrete structures that are not subject to settlement or movement.

• Pre-injections for waterproofing and consolidation in front of the TBM, with drill-and-blast and NATM under wet condition.

• For curtain injection into gravel for containing chemicals under wet or dry conditions.

• For screen injection behind porous structures when high velocity water streams are present.

Application

Before commencing the injection, consult the Technical Data Sheets and Safety Data Sheet (SDS) to be familiar with the materials at hand. Always shake HA Cut Cat AF well before use.

1. Surface Preparation

  • Remove surface contaminants and debris to establish the pattern of the crack or joint. Active leaking cracks larger than 3 mm need to be sealed with an approved method.
  • Drill holes of the correct diameter for the selected packer. Drill at an angle of 45°. Preferably the holes should be drilled staggered around the crack to insure good coverage of the crack in case it is not perpendicular to the concrete surface.
  • The depth of the bore should be approximately half of the thickness of the concrete. As a rule of thumb the distance of the drill point from the crack is half the wall thickness.
  • Distance between holes can vary by 15 to 90 cm, depending on the actual situation.
  • Insert the correctly sized packer into the hole up to 2/3 of its length. Tighten with a wrench or spanner by turning clockwise until enough tension has been reached to keep the packer in place during injection.
  • Flush the crack with water before injecting with resin. This will flush out dust, debris and prime the crack for the injection resin and improve penetration of the product into the crack. Water in the crack will activate the resin.

2. Resin and Equipment Preparation

  • Prepare the resin with the predetermined amount of catalyst. Shake HA Cut Cat AF well before use.
  • No reaction with the resin will occur until the resin comes into contact with water.
  • Protect the resin from water, since this will trigger a reaction in the container used and might cause the resin to harden or foam prematurely within the injection equipment.
  • It is highly recommended to use separate pumps for the water and the resin injection to prevent cross contamination and blockages.
  • The pumps should be thoroughly primed with DE NEEF® Washing Agent Eco to lubricate and dry the system before injection. We recommend the use of pneumatic or electric 1-component pumps. During the injection water will first flow from the crack, followed by foaming resin. After this, pure resin will flow from the crack.
  • Stop pumping when the pure resin reaches the next packer.
  • Move to the next packer and repeat the procedure. 
  • After injecting through a few of the packers, go back to the first one and re-inject with resin.
  • After the resin injection, water can be re-injected into the ports to cure resin left behind.
  • Let the resin cure thoroughly before removing packers. The resulting holes can be filled with hydraulic cement.
  • When the injection is finished, clean all tools and equipment which have been in contact with the resin with DE NEEF® Washing Agent Eco. This should be done within 30 minutes. Do not use solvents or other cleaning products since they give fewer positive results and can create hazardous situations.
  • Products should be disposed according to local legislation.

3. Reactivity

Temperature % HA Cut Cat AF Start reaction End reaction Expansion
At 5°C 2
3
5
10
Approx. 3’20”
Approx. 2’00”
Approx. 1’20”
Approx. 45”
Approx. 18’30”
Approx. 12’30’
Approx. 8’00”
Approx. 4’20”
Approx. 12V
Approx. 15V
Approx. 17V
Approx. 22V
At 10°C 2
3
5
10
Approx. 2’40”
Approx. 1’35”
Approx. 55”
Approx. 40”
Approx. 16’00”
Approx. 11’30’
Approx. 6’30”
Approx. 3’50”
Approx. 14V
Approx. 18V
Approx. 20V
Approx. 25V
At 15°C 2
3
5
10
Approx. 2’15”
Approx. 1’15”
Approx. 50”
Approx. 40”
Approx. 14’15”
Approx. 9’30”
Approx. 5’45”
Approx. 3’35”
Approx. 16V
Approx. 20V
Approx. 22V
Approx. 25V
At 20°C 2
3
5
10
Approx. 1’40”
Approx. 1’00”
Approx. 45”
Approx. 30”
Approx. 12’30”
Approx. 8’35”
Approx. 5’00”
Approx. 3’10”
Approx. 17V
Approx. 20V
Approx. 23V
Approx. 26V
At 25°C 2
3
5
10
Approx. 1’10”
Approx. 55”
Approx. 40”
Approx. 30”
Approx. 10’35”
Approx. 7’45”
Approx. 4’40”
Approx. 2’45”
Approx. 17V
Approx. 21V
Approx. 24V
Approx. 27V
At 30°C 2
3
5
10
Approx. 1’00”
Approx. 50”
Approx. 35”
Approx. 25”
Approx. 8’35”
Approx. 6’45”
Approx. 3’35”
Approx. 2’25”
Approx. 20V
Approx. 22V
Approx. 25V
Approx. 28V
At 35°C 2
3
5
10
Approx. 55”
Approx. 40”
Approx. 30”
Approx. 20”
Approx. 7’25”
Approx. 5’55”
Approx. 3’05”
Approx. 2’00”
Approx. 21V
Approx. 23V
Approx. 25V
Approx. 29V

 

With 10% HA Cut Cat F AF

Temperature Start reaction End reaction Expansion
-3°C Approx. 28” Approx. 2’00” Approx. 24V
5°C Approx. 25” Approx. 1’40” Approx. 26V
10°C Approx. 25” Approx. 1’35” Approx. 26V
15°C Approx. 25” Approx. 1’30” Approx. 28V
20°C Approx. 25” Approx. 1’20” Approx. 28V
25°C Approx. 20” Approx. 1’15” Approx. 30V

With 10% HA Cut Cat XF AF

Temperature Start reaction End reaction Expansion
-3°C Approx. 25” Approx. 1’30” Approx. 24V
5°C Approx. 20” Approx. 1’10” Approx. 26V
10°C Approx. 20” Approx. 1’10” Approx. 26V
15°C Approx. 20” Approx. 1’05” Approx. 28V
20°C Approx. 20” Approx. 1’00” Approx. 30V
25°C Approx. 15” Approx. 1’00” Approx. 30V

With 10% HA Cut Cat SXF AF

Temperature Start reaction End reaction Expansion
-3°C Approx. 20” Approx. 1’00” Approx. 28V
5°C Approx. 18” Approx. 55” Approx. 30V
10°C Approx. 18” Approx. 55” Approx. 30V
15°C Approx. 17” Approx. 55” Approx. 30V
20°C Approx. 15” Approx. 45” Approx. 30V
25°C Approx. 10” Approx. 40” Approx. 30V

Appearance

HA Cut CFL AF: Dark brown clear liquid.
HA Cut Cat /F/XF/XF AF: Red transparent liquid.

Consumption

Must be estimated by the engineer or operator and depends on width and depth of the cracks and voids, which need to be injected and on the expansion rate of the chosen resin.

Packaging

HA Cut CFL AF

5kg, 25kg or 200kg metal drums

1 Pallet 180 x 5kg drum
24 x 25kg drum
4 x 200kg drum

HA Cut Cat AF

0.5 or 2.5L plastic bottle or 20kg metal drum

1 box 8 x 0.5L

HA Cut Cat F/XF/SXF AF

2.5L plastic bottle

1 box 5 x 2.5L
1 Pallet 84 boxes with 0.5L bottles
40 boxes with 2.5L bottles
24 x 20kg metal drums

Storage

HA Cut CFL AF is sensitive to moisture and should be stored in original container in a dry area. Storage temperature must be between 5°C and 30°C. Once the packaging has been opened, the useful life of the material is greatly  reduced and should be used as soon as possible.

Shelf life: 2 years.

Accessories

To be ordered separately

  • Pumps
  • Packers and connectors
  • DE NEEF® Washing Agent Eco

(See respective Technical Data Sheets)

Health and Safety

Users must read and understand the product label and safety data sheet (SDS) for each system component before use. All users should acquaint themselves with this information prior to working with the material. Carefully read detailed precaution statements on the product label and SDSs before use. The most current SDSs can be obtained from the GCP website at gcpat.com or by  contacting GCP at +1-703-741-5970.

Technical Data / Properties

Property   Value Standard
HA Cut CFL AF resin
Solids % 100 EN ISO 3251
Viscosity at 25°C mPas Approx. 350 EN ISO 3219
Density kg/dm3 Approx. 1.075 EN ISO 2811
Flash Point °C 140 EN ISO 2719
HA Cut Cat AF catalyst
Viscosity at 25°C mPas Approx. 15 EN ISO 3219
Density kg/dm3 Approx. 0.950 EN ISO 2811
Flash point °C 70 EN ISO 2719
HA Cut Cat F AF catalyst
Viscosity at 25°C mPas Approx. 20 EN ISO 3219
Density kg/dm3 Approx. 0.973 EN ISO 2811
Flash point °C 125 EN ISO 2719
HA Cut Cat XF AF catalyst
Viscosity at 25°C mPas Approx. 20 EN ISO 3219
Density kg/dm3 Approx. 1.000 EN ISO 2811
Flash point °C 125 EN ISO 2719
HA Cut Cat SXF AF catalyst
Viscosity at 25°C mPas Approx. 25 EN ISO 3219
Density kg/dm3 Approx. 1.044 EN ISO 2811
Flash point °C 125 EN ISO 2719
Cured HA Cut CFL AF in confined conditions
Density kg/dm3 Approx. 1.000 EN ISO 1183
Compressive strength cured with HA Cut Cat AF MPa Approx. 9.5 EN 12190
Compressive strength cured with HA Cut Cat F/XF/SXF AF MPa Approx. 9.5 EN 12190
Flexural Strength MPa Approx. 9.0 EN 12190

 

gcpat.uk | United Kingdom customer service: +44 (0) 1480 478421

We hope the information here will be helpful. It is based on data and knowledge considered to be true and accurate, and is offered for consideration, investigation and verification by the user, but we do not warrant the results to be obtained. Please read all statements, recommendations, and suggestions in conjunction with our conditions of sale, which apply to all goods supplied by us. No statement, recommendation, or suggestion is intended for any use that would infringe any patent, copyright, or other third party right.

CUT and HA are trademarks, which may be registered in the United States and/or other countries, of GCP Applied Technologies, Inc. This trademark list has been compiled using available published information as of the publication date and may not accurately reflect current trademark ownership or status.

© Copyright 2018 GCP Applied Technologies, Inc. All rights reserved.

This document is only current as of the last updated date stated below and is valid only for use in the United Kingdom. It is important that you always refer to the currently available information at the URL below to provide the most current product information at the time of use. Additional literature such as Contractor Manuals, Technical Bulletins, Detail Drawings and detailing recommendations and other relevant documents are also available on www.gcpat.uk. Information found on other websites must not be relied upon, as they may not be up-to-date or applicable to the conditions in your location and we do not accept any responsibility for their content. If there are any conflicts or if you need more information, please contact GCP Customer Service.

Last Updated: 2022-11-24

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