DE NEEF® Cut Cat Emergency PURe Product Data Sheet

Product Description

DE NEEF Cut Cat Emergency is designed to be mixed with DE NEEF Cut PURe for emergency water cut-off in gushing water applications.

DE NEEF Cut Cat Emergency is used at a 10% mixing ratio. It is non-flammable, solvent free, and phthalate free. The final foam is resistant to most organic solvents, mild acids, alkaloids, and microorganisms. Cut PURe with Cut Cat Emergency is a water cut-off application and is not intended as a stand-alone solution. Reinjection with a more closed cell material is required.

Product Advantages

Gushing water cut-off when used with DE NEEF ® Cut PURe.
Enhanced cold weather reactivity.
Phthalate free, unregulated for transport and storage.

Product Applications

Sealing larger volumes leaks through concrete cracks and fissures
Cold Weather Grouting

Installation Guidelines

Warning: Consult the Technical Data Sheets and SDS before using.

Installation Instructions: For detailed installation instructions refer to the DE NEEF technical data sheet for Cut PURe.

  1. Shake catalyst can be 2-3 minutes.
  2. Do not pour catalyst directly into original grout container.
  3. Pour the desired amount of Cut PURe into a clean pail.
  4. Measure the appropriate amount of Cut Cat Emergency and pour it into the grout and stir until adequately mixed.
  5. Never use more than 10% of Cut Cat Emergency. Excess acceleration will cause vigorous expansion that is prone to shrinkage.

During injection, the grout will follow the path of least resistance.

When the material has stopped penetrating it will continue to expand against the confines of the crack/joint and compress within itself, forming a very dense, closed cell material stopping the leak.
Extreme conditions: For application procedures in extreme temperatures and specific environments or equipment recommendations call the DE NEEF Technical Service Department.
Cleaning: Clean all tools and equipment which have been in contact with the resin with DE NEEF Washing Agent before resin has cured. Products should be disposed of according to local, state, and federal laws.

Reaction Times

10% Cut Cat Emergency

TStartEndFoam Factor
77°F15"30”40V

Packaging & Handling

DE NEEF Cut Cat Emergency is corrosive and ships as a hazardous material.

32 oz. metal cans.
5.0 gallon metal pail

DE NEEF Cut Cat Emergency is sensitive to moisture and should be stored in the original containers in
a dry area. Storage temperature must be between 40°F and 90°F. 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.

Health and Safety

Always use protective clothing, gloves and goggles consistent with OSHA regulations. Avoid eye and skin contact. Do not ingest. Refer to SDS. For emergencies, call CHEMTREC 1-800-424-9300.

Limitations

This is not a stand-alone material . Injection of a more closed cell material will be required. 
Please do not exceed the recommended catalyst ratio.
CAUTION: pH NOTICE. Water used to activate PURe Grouts must be in the pH range of 3-10 for optimum foam quality.

Properties

DE NEEF CUT CAT EMERGENCY

Viscosity 20 cp at 77°F ASTM D2196 A
ColorTransparent Red Liquid 
Density0.973 g/cm 
Flashpoint 257°F ASTM D93

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GCP Applied Technologies Inc., 2325 Lakeview Parkway, Suite 400, Alpharetta, GA 30009, USA
GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6
This document is only current as of the last updated date stated below and is valid only for use in the United States. 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.com. 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: 2025-09-09

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