Gelacryl is a two-component, acrylic-based injection resin developed for waterproofing, control of water infiltration and stabilising and coagulating a variety of loose soils

Product Description

GELACRYL™ is an acrylic-based, hydrophilic gel, consisting of two-components: a resin and an initiator which are pumped with a twin piston pump at a 1/1 ratio. Once polymerised, Gelacryl forms a resilient, elastomeric gel.

  • Resin : Gelacryl
  • Catalyst : TE 300
  • Initiator : SP 200
  • Decelerator : KF 500

Field of Application

  • Water control during tunnelling operations.
  • Curtain grouting.
  • Waterproofing of underground structures in concrete or masonry (cellars, underground car parks).
  • Sealing of cracks in concrete and rock formations.
  • Sealing of tunnel liners.
  • Mixed with cement for the waterproofing and consolidation of structures and voids.

Product Advantages

  • Gelacryl is injected with a twin piston, 1/1 ratio pump
  • Gelacryl is delivered on site with a composition of 45% solids which can be diluted to 22% solids, depending on the nature of the application. In diluting the basic material, the viscosity can be adapted depending on the site requirements
  • The low viscosity of Gelacryl ensures a deep penetration in the joint and the soil around the joint
  • Exhibits very low permeability for long lasting waterproofing
  • Non-flammable
  • No environmental labelling required
  • Poly-acrylate resin, free of acrylamides
  • Has a very good overall chemical resistance and is resistant to petroleum, mineral/vegetable oils and greases (*)

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


1. Composition

  • The injection grout needs to be prepared immediately before the injection. Do not dilute the resin to less than 23% solids when injecting.
Gelacryl Water
TE 300 SP 200
  • After preparation, the components are injected simultaneously at a ratio of 1/1.

2. Preparation

Component 1

Gelacryl vessel. Add the required quantity of TE 300 catalyst to the Gelacryl resin. Gelacryl and TE 300 need to be thoroughly mixed.

Component 2

SP 200 vessel. The vessel is first filled with the required quantity of water as the Gelacryl vessel after which the SP 200 is added. The mixture is thoroughly mixed.

3. Gel times (typical mixtures)

  • Depending on the concentrations of TE 300 catalyst and SP 200 initiator in their respective blends, varying gel times can be obtained. Air, material and background temperatures will also influence gel times. The pH and the nature of the injection substrate will also affect gel times. The following typical gel times can be obtained by mixing the components according to the following formulations.

4. Injection

  • The injection work should be carried out with a twin piston, 1/1 ratio pump (IP 2C-Gel). Please read the relevant Technical Data Sheet. For injection procedure, please read the Injection Manual.
  • Delayed gel times (for example for soil injections) can be reached by adding KF 500 decelerator. Contact our technical department for correct formulations.
5 GA 42.00 1.70 42.00 1.80 4 1’
5 GA 42.00 1.70 42.00 1.35 3 2’
5 GA 42.00 1.70 42.00 0.90 2 3’
10 GA 42.00 1.30 42.00 1.80 4 1’
10 GA 42.00 1.30 42.00 0.90 2 2’
10 GA 42.00 1.30 42.00 0.45 1 3’
15 GA 42.00 1.00 42.00 1.35 3 1’
15 GA 42.00 1.00 42.00 0.90 2 2’
15 GA 42.00 1.00 42.00 0.45 1 3’
20 GA 42.00 0.80 42.00 1.35 3 1’
20 GA 42.00 0.80 42.00 0.90 2 2’
20 GA 42.00 0.80 42.00 0.45 1 3’


Gelacryl Resin Green liquid
TE 300 Transparent liquid
SP 200 White salt
KF 500 Orange liquid

After curing, product turns into a flexible gel, which remains flexible under water.



25 kg plastic jerry-can
1 pallet 24 jerry-cans

TE 300

25 kg plastic jerry-can
1 pallet 24 jerry-cans

SP 200

0.45 kg plastic bottle
1 box 22 bottles
1 pallet 24 boxes

KF 500

25 kg plastic jerry can
1 pallet 24 jerry-cans


Has to be estimated by the engineer or operator and depends on width and depth of the cracks and voids to be filled.


Gelacryl, TE 300, SP 200 and KF 500 should be stored in a frostfree environment under cover, clear of the ground, in the original closed packaging.

Storage temperature must be below 35°C.

Shelf life: 1 year.

Technical Data/Properties

Density Approx. 1.17kg / dm3 ASTM D-1638
Viscosity Approx. 18 mPas at 25°C ASTM D-1638
Solids Approx. 45% ASTM D-1010
Boiling point 100°C Test DNC
Freezing point < -20°C Test DNC
Solubility in water 100% Test DNC
Catalyst TE 300    
Concentration Approx. 85% Test DNC
Initiator SP 200    
Density Approx. 1,9kg / dm3 ASTM D-1638
Solubility in water Approx. 79% Test DNC
Decelerator KF 500  
Concentration 10% Test DNC
Dilution Clean tap water  
Cured resin based on a 22% solids mixture.  
Solubility Insoluble in water and petroleum derivatives Test DNC


To be ordered separately

  • IP 2C-Gel air driven twin piston pump.
  • Packers and connectors.
    (Please consult the relevant Data Sheet).

Health and Safety

Gelacryl is classified as irritating.

Always wear appropriate protective gear: rubber gloves, goggles and boots. In case of contact with the eyes, flush with water for 15 minutes. If swallowed, call a physician immediately.

For full information, consult the relevant MSDS. | India customer service: +91 124 4885900

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.

Gelacryl 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 2017 GCP Applied Technologies, Inc. All rights reserved.

GCP Applied Technologies Inc., 2325 Lakeview Parkway, Alpharetta, GA 30009, USA
GCP Applied Technologies India Private Limited, Unit No. 208, Second Floor, Time Tower Building, Sector-28, MG Road, Gurugram, Haryana-122002, India
This document is only current as of the last updated date stated below and is valid only for use in India. 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 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: 2022-11-18