skip to Main Content
+90 (506) 158 23 62

Polyurethane Injection

Polyurethane Injection


The system is single component. It reacts when it comes into contact with water and forms a waterproof polyurethane foam. CESTEL polyurethane  injection is solvent and filler-free, resistant to hydrolysis, and is suitable for use in potable water areas. When mixed material comes into contact with water, it reacts to form a fine-pored, closed cell foam which stops and displaces water

 Application Field

  • High pressured or high flow water leakages.
  • Water leakage in retaining walls
  • In construction structures.
  • Tunnel construction

Features and Advantages

  • It becomes strong rigid gasket in cracks.
  • It does not contain solvent. It is not flammable.
  • Enviromental friendly
  •  Reaction time can be controlled and arranged
  • It has a chemical resistance..   


Before injection polyurethane, seal cracks. Minimum application temperature is 4 °C. Bring the material to 15°C before mixing and injection. Temperatures above 27 °C will increase reaction rate and reduce pot life. Perform injection using a conventional single component injection pump such as the electrical  Injection Pump. Drill holes on alternating sides along the course of the crack at an interval of 10 – 15 cm. Insert injection packers into the holes and (when possible) inject from bottom to top. The diameter of the drill holes depends on the injection packers chosen. After the injection of CESTEL WATERPROOF POLYURETHANE INJECTION, seal the crack permanently. Perform these subsequent injections between 5 and 15 minutes (depending on the surrounding temperature) after the initial injection.


Clean tools immediately after use with CESTEL Pur Cleaner.


Technical Data:


Catalyst amount and curing time at 20  0


5 kg and 20 kg


In originally sealed packages, the material can be stored for 12 months.


Consult Safety Data Sheet. Wear protective gloves and goggles when processing the material