DE NEEF® Cut Cat Fast and Extra Fast PURe

Product Description

Cut Cat Fast and Extra Fast PURe are designed to be mixed with 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. Cut Cat Fast and Extra Fast PURe are recommended for use in cold temperatures when the use of the standard Cut Cat PURe does not result in a fast enough reaction.

Cut Cat Fast and Extra Fast PURe are used at a 10% mixing ratio. Both are non-flammable, solvent free, and phthalate free. Final foam is resistant to most organic solvents, mild acids, alkaloids and microorganisms.

Cut Cat Fast and Extra Fast PURe have very fast reaction times, less than 60 seconds in salt water at 27°F.

Product Applications

  • Sealing larger volume leaks thru concrete cracks and fissures
  • Cold Weather Grouting


Viscosity 20 cp at 77°F ASTM D2196 A
Color Transparent Red Liquid  
Density 0.973 g/cm3  
Flashpoint 257°F ASTM D93
Cut Cat Extra Fast PURe  
Viscosity 20 cp at 77°F ASTM D2196 A
Color Transparent Red Liquid  
Density 1.000 g/cm3  
Flashpoint 257°F ASTM D93

Product Advantages

  • Faster reaction times for Cut PURe.
  • Enhanced cold weather reactivity.
  • Phthalate free, unregulated for transport and storage.

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 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 Fast or Extra Fast and pour it into the grout and stir until adequately mixed.
  5. Never use more than the 10% of Cut Cat Fast or Extra Fast. 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.

Packaging & Handling

Cut Cat Fast and Extra Fast PURe:

  • 32 oz. metal cans.
  • 5.0 gallon metal pail

Cut Cat Fast and Extra Fast PURe are 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.


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.

Reaction Times

10% Cut Cat Fast PURe

27°F 30" 1’40” 20V
40°F 28" 1’25” 26V
50°F 26" 1’23” 26V
60°F 23" 1’20” 28V
68°F 23" 1’20” 30V
77°F 20" 1’20” 32V

10% = 64 oz per 5 gallons of Cut PURe


Reaction Times

10% Cut Cat Extra Fast PURe

27°F 25" 1’15” 24V
40°F 23" 1’10” 28V
50°F 23" 1’10” 28V
60°F 23" 1’05” 30V
68°F 20" 1’05” 30V
77°F 18" 1’05” 32V

10% = 64 oz per 5 gallons of Cut PURe | North America customer service: 1-877-4AD-MIX (1-877-423-6491)

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.

DE NEEF® is a trademark, 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.

GCP Applied Technologies Inc., 62 Whittemore Avenue, Cambridge, MA 02140 USA.

In Canada, GCP Canada, Inc., 294 Clements Road, West, Ajax, Ontario, Canada L1S 3C6.

Ce document est à jour seulement à la date de la dernière mise à jour indiquée ci-dessous et n'est valide que pour une utilisation au Canada. Il est important que vous consultiez toujours les informations actuellement disponibles sur l'URL ci-dessous pour fournir les informations les plus récentes sur le produit au moment de l'utilisation. Des documents supplémentaires tels que les manuels de l'entrepreneur, les bulletins techniques, les dessins détaillés et les recommandations détaillées ainsi que d'autres documents pertinents sont également disponibles sur Les informations trouvées sur d'autres sites Web ne doivent pas être utilisées, car elles peuvent ne pas être à jour ou applicables aux conditions de votre site et nous déclinons toute responsabilité quant à leur contenu. S'il y a des conflits ou si vous avez besoin de plus d'informations, veuillez contacter le service client de GCP.

Last Updated: 2018-12-12