Joint Sealing

WEBAC 1403 is a long-track-record proven PU injection resin, particularly valued for its safe and controlled application. Upon contact with water, it cures into a closed, waterproof, and dimensionally stable resin with a fine pore structure. It is suitable for sealing, crack injection, and stabilizing masonry and concrete, and is used for post-construction damp proof courses (dpc) against capillary rising damp.

WEBAC 1403P is a CE-certified, low-viscosity PU injection resin with high chemical resistance. Upon contact with water, it forms a uniform, closed, and watertight pore structure and cures into a resin with constant volume. It is suitable for sealing, waterproofing, and limited-expansion filling of dry, damp, or water-bearing cracks, as well as for injection of injection tubes in construction joints.

WEBAC 1405 is a low-viscosity, CE-certified PU injection resin. It cures with constant volume to form an elastic, limited-elasticity resin. Upon contact with water, it forms a uniform, closed, and watertight pore structure. It is used for closing, sealing, and limited-elasticity filling of dry, damp, or water-bearing cracks, as well as for sealing cavities/voids in building construction, civil engineering, bridge construction, tunnel construction, and shaft construction.

WEBAC 1420 is a highly flexible, tear-resistant PU injection resin designed for areas subject to severe biological and chemical stress. Upon contact with water, it rapidly reacts to form a dimensionally stable foam structure and cures into an elastic, volume-stable resin with good elongation. It is suitable for sealing, waterproofing, and making limited-elasticity joints in building components, as well as for sealing water-bearing cracks in both dry and wet areas.

WEBAC 1500 is a CE-certified PU combi injection resin that combines the beneficial properties of S-PU and PU resins. Upon contact with water, it rapidly forms a dense, elastic foam that ensures a permanent seal, but it also cures with constant volume even without water. It is particularly suitable for sealing cracks, cavities/voids, and areas exposed to water.

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).

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. 

WEBAC 270 is a low-viscosity, CE-certified polyacrylate injection gel with very low volume loss during curing. Once cured, it forms a firm, elastic gel that reliably absorbs dynamic and mechanical stresses. It is suitable for crack injection in building components, sealing construction joints, and backfilling joints.

WEBAC 4110 is a CE-certified, low-viscosity epoxy injection resin. This allows the resin to penetrate even the finest cracks and crack branches, enabling a permanent bond in concrete and masonry structures. After application, it cures with constant volume to form a solid material with high tensile strength and inherent strength, as well as excellent edge adhesion. It is used to close, seal, and perform structural bonding of dry cracks in concrete components, as well as for injection of construction joints.

WEBAC 4170 is a CE-certified, very low-viscosity epoxy injection resin with good penetration. It penetrates even the finest cracks, cures to a solid state, and ensures a durable bond through optimal wetting and adhesion, even on dry or wet crack surfaces. It is used for closing, sealing, and structural force-fitting of structural components and is also suitable for crack filling.

WEBAC 4170E is a very low-viscosity epoxy injection resin with excellent penetration properties. It penetrates even the finest cracks, cures to a solid state, and, thanks to its excellent wetting and adhesion properties, ensures a durable bond on both dry and damp crack surfaces. It is used for sealing, waterproofing, and creating a structural bond between structural components, as well as for crack filling.

WEBAC 4170T is a CE-certified, very low-viscosity epoxy injection resin that performs well even at low temperatures. It penetrates even the finest cracks, cures to a solid state, and ensures a durable bond—even on dry, damp, or wet crack surfaces—thanks to optimal wetting properties and moisture tolerance. It is used to close, seal, and form a structural bond in cracks and cavities/voids.

WEBAC 4515 is an epoxy putty that is easy and efficient to apply. It cures quickly, even at temperatures as low as -5 °C, and achieves high compressive strength. It is particularly suitable for use in crack sealing and for the installation of surface packers.

WEBAC 4525 is a non-drip, universal epoxy putty. It cures into a solid mass with high chemical resistance and can be applied even on damp substrates and in areas exposed to water. It is particularly suitable for bonding mineral building materials and for crack sealing.

WEBAC 4530 is a versatile epoxy putty that is particularly valued for its ease of application. It cures into a strong, durable compound and can be mixed with quartz sand as needed to supplement concrete. The material offers excellent adhesion to concrete, mineral substrates, and stoneware. It is particularly suitable for repair and bonding work in sewer and building renovation, as well as for the installation of surface packers.

WEBAC 4535 is a versatile epoxy putty that cures quickly into a strong, durable compound and can be mixed with quartz sand as needed to supplement concrete. The material offers excellent adhesion to concrete, mineral substrates, and stoneware. It is particularly suitable for repair and bonding work in sewer and building renovation, as well as for the installation of surface packers.

WEBAC Bentonite Swelling Tapes are swellable joint fillers with reversible swelling properties. They are used to seal construction joints in cast-in-place concrete structures and to secure pipe penetrations.

WEBAC Contact Adhesive is a ready-to-use, fast-curing adhesive supplied in cartridges. It is used for the installation of WEBAC Polymer and Bentonite Swelling Tapes.

WEBAC Fastening Grid is a U-shaped expanded metal mesh made of galvanized steel, used to secure WEBAC Bentonite Swelling Tape.

WEBAC Polymer Swelling Tapes are swellable, dimensionally stable joint liners that swell upon contact with water, thereby providing a reliable seal. They are used to seal construction joints and joints in precast concrete structures.

WEBAC Swelling Paste is a single-component, moisture-curing PU sealing paste that swells and is easy to apply. It is used to seal construction joints and for the installation of WEBAC swelling tapes.

WEBAC hammer-in profiles are closed-cell joint profiles made of EPDM foam, characterized by their high weather resistance and ease of installation. They are used to seal expansion and connection joints.

WEBAC Sealing Tape XT is an external, strip-shaped joint tape that can accommodate structural movement thanks to its permanently elastic properties. It is used for pressure-water-tight sealing of construction joints and controlled expansion joints in concrete.

WEBAC injection tubes are flexible joint tubes that, when used in conjunction with WEBAC PU injection resins, provide a reliable seal. They are used to seal construction joints in concrete structures and to create a structural bond between concrete components.

WEBAC Plugs/Rings/Flanges are swellable sealing rings and plugs that, thanks to their active swelling properties, provide a reliable seal even under negative water pressure.
They are used for watertight sealing of penetrations and tie points in concrete and reinforced concrete structures.