Two Component Hydro Active Water Cut-Off Polyurethane Resin, Expands 16 Times

CHEM-CRETE® RIGID FOAM CCC530 is a low viscosity two component solvent-free ready-to-use expansive and hydro active Polyurethane Injection System.  CHEM-CRETE® RIGID FOAM reacts quickly in contact with water and expands to form a tough closed-cell polyurethane foam that stops high pressure or fast running water. CHEM-CRETE® RIGID FOAM can be pumped using single or two component injection pumps.


Technical Data Sheet

Quick Reference Chart for Polyurethane Grouts


CHEM-CRETE RIGID FOAM CCC530 is extensively used to inject leaking structures for stopping the running water flows in the following fields:

  • Wastewater treatment plants.
  • Water reservoirs and tanks.
  • Swimming pools and fountains.
  • Foundations, basements and abutments.
  • Underpasses, tunnels, etc.


Basic applications of CHEM-CRETE RIGID FOAM CCC530 for:

  • Sealing of damp and wet cracks in concrete or stone.
  • Filling of voids in shale, rock fissures, faults, and gravel layers.
  • Sealing of leaking dormant cracks and cracked concrete/ masonry.
  • Injection of water bearing cracks and honeycombs under most difficult conditions, e.g.: high pressure and strong ground water flows.
  • Soil stabilization increasing the bearing capacity of sandy soil.


  • Two component ready-to-use system.
  • Low viscosity permits reliable penetration.
  • Rapid reaction on contact with water producing an expanded closed cell foam that stops water flow instantly.
  • Good adhesion to substrate.
  • Suitable for injection with one or two component injection pumps.
  • Cured CHEM-CRETE RIGID FOAM CCC530 resistant to most organic solvents, mild acids, alkali and microorganisms.



47.00 LB (21.26 KG) UNIT 45 LB (24.12 KG) PAIL 30 OZ (0.9 LITER) CAN
498 LB (226 KG) UNIT 463 LB (210 KG) FOAM 35 LB (15.9 KG) PAIL



 Technical Data for Uncured Parts

Property @ 25°C (77°F) FOAM CCC530 ACCELERATOR CCC530X Test Method
Solids 100% 100%

Viscosity, cPs 150 15 Brookfield
Color Brown Transparent liquid

Density, Lb/Gal (Kg/L)  9 (1.08) 8 (0.96) ASTM D1475
Flash point, °F(°C) 266 (130) 266 (130) COC Method


Technical Data for Cured Parts

Property @ 25°C (77°F) Value Test Method
Density, Lb/Gal (Kg/L) 9 (1.08) ASTM D1475
Tensile Strength, psi (MPa) 50 (0.35) ASTM C-882
Compressive Strength, psi (MPa) 820 (5.6) ASTM C109
Elongation 6% ASTM D638


Reactivity: Free expansion up to 16 times its original size. Expansion is dependent upon pH level of water and confinement.


Consumption: Variable depending on moisture content and water pressure, nature of application, etc.


Limitations: application at ambient temperatures below approx. 5°C is not recommended.  Exposure to temperatures exceeding 65 °C for prolonged periods is not recommended.




Pre-treatment of Substrate: the substrate must be sound, clean and free from oil and grease. All loose material and laitance along the crack length should be removed with suitable hand tools such as needle guns, wire brushes or angle grinders.


Injection Packers: two types of injection packers are available, adhesive (surfaces) packers and drilled packers. The selection of the packer type depends on the thickness of the substrate and the nature of the crack (width, depth, shape and propagation). The crack nature will affect the operating pressure used in the injection process. Normally, drilled packers can be operated at higher pressures than adhesive packers.


Setting Injection Ports: the crack nature and substrate will affect the distance between the packers. Generally, packers should be installed at distances between 20-50 cm along the crack length.


Adhesive Packers are recommended mainly in dry or slight damp concrete. Adhesive packers are recommended for wide or surface cracks and when the substrate thickness is small. Injection of minor cracks is possible but subject to site inspection and demonstrations and will be dependent on a slow operating injecting pressure.


Drilled Packers can be recommended for both dry and wet concrete and for all sizes and nature of cracks. Drilled packers can be installed along the crack length or alternating on both size of the crack length. When drilling on the side of the crack at 45-degree inclination a special care must be taken in insuring that drilled holes crosses the crack section.


Mixing: pour the accelerator component “B” into component “A” and shake well for a minimum 2-3 minutes to insure a homogeneous mix of the two components.

It is possible to mix additional amount of Accelerator for strong gushing water with high at pressure. The additional amount will accelerate the foaming process.


Pot life: the mixed CHEM-CRETE RIGID FOAM CCC530 do not possess any pot life. The activation starts upon contact with water or moisture.

  • Induction: 35-40 seconds starts the reaction.
  • In 60-90 seconds, the water and resin start reacting.
  • Complete reaction is 3-5 minutes and becomes like a creamy gel. This stage is considered tack free.
  • Curing time is 3-5 minutes.


Injection: sealing of leaking cracks and joints is not required. Drilled packers are used in the injection of CHEM-CRETE RIGID FOAM CCC530. Pour the mixture of CHEM-CRETE RIGID FOAM CCC530 into a suitable injection pump. For a wall, commence injection at the lowest point. For a slab, commence the injection at one side of the crack then progress to the adjacent packer, until the whole crack length is completely injected. Due to the low viscosity and long pot life of CHEM-CRETE RIGID FOAM CCC530 and with the adequate injection pressure, the injection resin will flow, fill and seal all voids and subsiding cracks.


Curing: allow the injected CHEM-CRETE RIGID FOAM CCC530 to cure for at least 48 hours before removing, of any expanded access outside the crack surface. Remove the injection packers using angle grinders. Repair irregularities in the concrete surface using CHEM-VERSATILE GEL, if needed.


QUICK REFERENCE CHART: depending on nature of the crack, different polyurethane resins can be injected:

  • CHEM-CRETE RIGID FOAM CCC530: For non-moving cracks and gushing water–hydrophobic.
  • CHEM-CRETE FLEX FOAM CCC524: For moving cracks, expansion joints or moving hairline cracks – hydrophobic.
  • CHEM-CRETE HYDRO FOAM CCC526H: For moving cracks in continuously MOIST environments – hydrophilic.


Expansion dependent upon pH level of water and confinement:

CHEM-CRETE RIGID FOAM CCC530 For water cut off-large leaks

Rigid material

Expansion up to 16X

Viscosity 150 cps at 21 °C

Chem-Crete Terra Foam CCC528 Soil stabilization

Rigid material

Free expansion up to 10X

Viscosity 50 cps at 25 °C

Chem-Crete Flex Foam CCC524 Free expansion up to 5X

Viscosity 700 cps at 20 °C

Chem-Crete Hydro Foam CCC526H Nonflammable

Viscosity 750 cps

Free expansion up to 8X



Application Rigid Foam Terra Foam Flex Foam Hydro Foam
Dead Cracks     √
Live Cracks/Joints
Gushing Water
Running Water
Rock Fissures  √
Cracked Concrete/Masonry
Porous Concrete/Masonry
Honeycombed Concrete
Expansion Joints
Day/Cold Joints
Soil Stabilization
Stabilize Ground @ Headings
Under Filling Foundations
Tie Back Anchors
Pre-grout Aquifers
Grout Curtain
Void Filling
Hairline Cracks-Moving
Underwater Applications
Injection Tube



CHEM-CRETE RIGID FOAM CCC530 is sensitive to moisture and to high storage temperatures. Store at temperatures 5°C to 16°C under dry conditions. Storage temperature should not exceed 27°C. Shel life is minimum 12 months in product’s original unopened containers.


After full cure CHEM-CRETE RIGID FOAM CCC530 is physiologically harmless.


Keep the resin and hardener away from the eyes, mouth and skin. Do not breathe in the vapors. The uncured mixture can cause irritation of the skin. For best protection, wear rubber or plastic gloves. In case of contamination, wipe away resin or hardener immediately from the skin using paper towels and then wash with soap and water or hand cleaning detergent.


LIMITED WARRANTY:   International Chem-Crete Inc. warrants that, at the time and place we make shipment, our materials will be of good quality and will conform to our published specifications in force on the date of acceptance of the order.


DISCLAIMER:   The information contained herein is included for illustrative purposes only and, to the best of our knowledge, is accurate and reliable. International Chem-Crete Inc. is not under any circumstances liable to connection with the use of information. As International Chem-Crete Inc. has no control over the use to which others may put its products, it is recommended that the products be tested to determine the suitability for specific applications and/or our information is valid in particular circumstances. Responsibility remains with the architect or engineer, contractor and owner of the design, application and proper installation of each product. Specifier and user shall determine the suitability of the product for specific application and assume all responsibility in connection therewith.  AM30319.