Injection is a common method used to repair and waterproof concrete structures. It is also used to consolidate and stabilize ground before future structures are erected (pre-excavation grouting) and to stop water and consolidate ground in existing underground structures (post-injection).

SikaInject injection key visua

 

 

Sika offers a full range of high-quality injection materials within the SikaInject® product brand for all types of applications. Our injection solutions are tested and approved according to the leading global standards.

Additionally, Sika’s experts are highly competent and experienced, providing technical advice and support.

Full Range of Injection Solutions for Construction & Repair

Advantages of Sika Injection Solutions

Icon Durability

Effectiveness

  • Injections can permanently seal even the smallest cracks and voids, providing a comprehensive waterproofing solution
Icon Strenght

Compatibility

  • Compatible with Sika’s complete engineered waterproofing systems

 

Icon of castle with flag for reliable and durable resistance

Full range

  • Includes all material technologies
  • Covers almost all applications
  • Provides efficient application equipment
Icon Resistance

Durability

  • High-quality injection materials
  • Provide long-lasting waterproofing protection
  • Enhance the lifespan of structures

Main Applications

Ariel view of Limmat Building

Concrete and Masonry Structures

Zürich westumfahrung, westring Zurich, tunnel, road bridge, west ring

Tunnels and Mines
 

Aerial photo of Son La Mar Dam

Large Dams
 

Main SikaInject® Materials and Their Most Common Uses

Concrete / Masonry Structures

Repair Work / Waterproofing

Rigid

  • Epoxy
  • Cement
  • Structural Polyurethane (PU)

 

Key Uses: Cracks and joints, structural repair

Flexible

  • Polyurethane (PU) - Resin or foam
  • Acrylate

 

Key Uses: Water stopping in cracks, joints, cavities, masonry, curtain, compartments

Tunnels / Mines (Underground)

Soil / Rock / Sand

Consolidation

  • Polyurethane (PU) - Resin or foam
  • Acrylate (sand)
  • Anchoring Silicate and Thix
  • Cement / Co. Sil

Key Uses: Stabilizing, void filling, consolidating

Waterproofing

  • Polyurethane (PU) - Resin or foam
  • Acrylate (sand)
  • Silicate

Key Uses: Waterproofing up to huge amounts of heavily pressing water

Sika's Expert Waterproofing Know-how

Matthias Ohnesorge man applying injection in concrete
  • Waterproofing
  • Injection
  • Tunnel
  • Mining
  • Construction

Injection Basics: Applications for Ground Consolidation, Stabilization & Waterproofing

Injection techniques are essential for strengthening and protecting structures and underground construction through ground consolidation, stabilization, and waterproofing. This article explores how injection works, its key applications, materials, and the benefits of using injection as a reliable solution across construction, tunneling and mining projects.
Injection for waterproofing leaking cracks 3d rendering
  • Waterproofing
  • Injection
  • Below-Grade Waterproofing
  • Engineer

How to Select an Injection Material to Seal Leaks?

Leaks in concrete, masonry and natural stone structures can often be securely sealed and waterproofed by injection. However, to make leaking structures watertight for the long term, it’s essential to select the right injection material. On the basis of our extensive technical and practical experience, we have prepared a guide which will help you choose the optimal injection solution for your project requirements.
Hydrophobic impregnation for protection of concrete structures
  • Concrete
  • Waterproofing
  • Watertight Concrete
  • Concrete Admixture

Watertight Concrete System

Waterproof concrete is an impermeable concrete used for long-lasting, durable watertight construction. To improve the impermeability of the concrete, water-resisting admixtures can be added. Nevertheless, design and construction of a watertight concrete structure is a system approach, and waterproof concrete is only one element of it. Water impermeability is determined by fulfilling requirements to limit water permeability through the concrete itself, the joints, installation parts and cracks.
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