PU Injection Grouting

PU Injection Grouting, also known as Polyurethane Injection Grouting, is an advanced waterproofing technique used to seal cracks, joints, voids, and active water leakage in concrete structures. It is particularly effective for basements, foundations, underground structures, water tanks, retaining walls, tunnels, and other areas exposed to moisture and groundwater.

The process involves injecting specially formulated polyurethane resin into cracks and leakage points under controlled pressure. When the PU resin comes into contact with moisture or water, it expands and forms a flexible, water-resistant foam that fills cracks and concealed voids. This helps block the path of water and provides reliable protection against further seepage.

How PU Injection Grouting Works

The affected concrete surface is carefully inspected to locate the source of leakage. Injection ports are installed along the crack or joint at suitable intervals. PU resin is then injected through these ports using specialized high-pressure equipment. The resin penetrates deep into the crack and reacts with moisture, expanding to fill the available spaces and creating a flexible waterproof seal.

PU Injection Grouting Services Include:

  • Basement Water Leakage Treatment
  • Concrete Crack Injection
  • Active Seepage Control
  • Construction Joint Waterproofing
  • Foundation Crack Treatment
  • Underground Structure Waterproofing
  • Water Tank Leakage Treatment
  • Expansion Joint Sealing

Benefits of PU Injection Grouting

  • Effectively stops active water leakage
  • Expands to fill deep and concealed cracks
  • Provides excellent resistance to water penetration
  • Suitable for wet and damp concrete surfaces
  • Helps seal difficult-to-access leakage points
  • Flexible enough to accommodate minor movement
  • Provides long-lasting waterproofing protection
  • Suitable for residential, commercial, and industrial structures

PU Injection Grouting is an ideal solution for persistent water seepage and leakage problems where conventional surface waterproofing may not be sufficient. With professional application and proper material selection, PU grouting helps protect concrete structures from moisture damage while improving their overall durability.

For reliable and long-lasting results, professional PU Injection Grouting can provide an effective solution for keeping basements, foundations, tanks, and underground structures dry, protected, and watertight.