Acrylat Gels
WEBAC® 240
- Classic Line
- Consolidation Line

Permanent prevention of water ingress from cut water veins or when passing through groundwater zones by sealing behind the structure. However, even after construction is complete, primary waterproofing measures that have already been installed—such as membranes, liners, or joint sealants—may develop leaks due to factors like structural shifts, overloading, or structural failures and may require post-construction sealing.
Measures:
Selection of Materials:
Acrylat Gels
WEBAC 240 is a low-viscosity, fast-setting polyacrylate injection gel with National Technical Approval from DIBt (B-concentration 2%). After curing, it forms a waterproof, firm-elastic gel that reliably absorbs dynamic and mechanical stresses. It is particularly suitable for curtain injection—either in the subsoil immediately adjacent to the structural element or within the existing building structure—as well as for subsoil stabilization and waterproofing or damp proof courses (dpc).
Acrylat Gels
WEBAC 240 + Bseal I is a polymer-reinforced polyacrylate injection gel with excellent adhesion to dry, damp, and wet substrates, as well as to foils and membranes. After curing, the gel remains dimensionally stable and exhibits very little volume loss. Thanks to its elasticity and adhesive strength, it is suitable for sealing expansion joints, damaged sheet and membrane waterproofing, as well as for sealing annular gaps in tunnel lining construction.
Hybrid Injection System
WEBAC HIS is a hybrid injection resin used as a reactive component for large-volume cement grouting and holds National Technical Approval. It is characterized by rapid strength development and cures even underwater to form a stabilizing and sealing material. The resin is used to secure Foundation Pits and tunnel structures, as well as for subsoil stabilization and void filling.
PU Injection Resins
WEBAC PURseal is a fast-curing, permanently sealing PU injection resin. It cures into a compact, high-strength material without contact with water, while it reacts with a slight foaming action upon contact with water. The resin is used for subsoil stabilization and rock reinforcement, as well as for sealing against flowing and pressurized water in Foundation Pits, tunnels, and transportation infrastructure projects.
PU Injection Resins
WEBAC PURseal M is a permanently sealing PU injection resin with German mining approval that is characterized by extremely rapid strength development. Without contact with water, it cures into a compact, high-strength material, while it reacts with slight foaming upon contact with water. The resin is used for anchor bonding as well as for Subsoil stabilization and rock reinforcement.
PU Injection Resins
WEBAC PURseal M S is a fast-curing PU injection resin with DIBt approval for environmental compatibility when in contact with soil and groundwater. It cures into a compact, high-strength material without contact with water, while it reacts with a slight foaming effect when in contact with water. The resin is used for subsoil stabilization and rock reinforcement, as well as for securing foundation pits and tunnel structures.
PU Injection Resins
WEBAC PURseal M SL10 is a PU injection resin with extended working and penetration times that has received DIBt approval for environmental compatibility when in contact with soil and groundwater. The resin cures into a compact, high-strength material without contact with water and reacts with a slight foaming effect when it comes into contact with water. It is used for subsoil stabilization and rock reinforcement, as well as for permanent waterproofing.
PU Injection Resins
WEBAC PURseal M SL5 is a relatively fast-curing PU injection resin. It cures into a compact, high-strength material without contact with water, but reacts with slight foaming when it comes into contact with water. The resin is used for subsoil stabilization and rock reinforcement, as well as for securing foundation pits and tunnel structures.
Silicate Resins
WEBAC SILcompact M is a non-foaming silicate injection resin with German Mining Approval. It offers excellent flow properties and cures very quickly into a compact material that can be cut and planed. The resin is used for stabilizing and sealing tunnel structures and in mining applications.
Silicate Resins
WEBAC SILcompact M thix is a non-foaming silicate injection resin with German Mining Approval. It offers excellent flow properties combined with rapid viscosity development and cures very quickly into a solid material that can be cut and planed. The resin is used for stabilizing and sealing tunnel structures and in mining applications.
Silicate Resins
WEBAC SILform is a silicate injection foam resin that foams and sets rapidly. It reacts with or without contact with water and cures into a pressure-resistant material that can be cut and planed. The resin is used for stabilizing and permanently sealing tunnel structures and in mining applications.