Description Product Overview ARDEX RA 142 is a two-component, super low viscosity epoxy adhesive designed for the repair of fine and hairline cracks in concrete substrates. Its ultra-thin liquid consistency allows deep penetration into cracks, ensuring effective bonding and structural repair in both horizontal and vertical applications. The system is suitable for gravity-feed and pressure injection methods, making it ideal for crack widths ranging from approximately 0.05mm to 3mm. It can also be used as an epoxy resin binder for mortar repairs when mixed with suitable aggregates. ARDEX RA 142 delivers strong bonding and sealing performance for both internal and external concrete slabs, supporting long-term durability in repair applications. Key Features Super low viscosity for deep crack penetration Suitable for hairline to fine cracks (approx. 0.05mm to 3mm) Two-component epoxy system for high-strength bonding Compatible with gravity-feed and pressure injection methods Can be used as epoxy mortar when combined with aggregate Strong bonding and sealing performance Suitable for internal and external concrete repair Solvent-free, low VOC formulation Applications Injection repair of fine cracks in concrete slabs Structural crack repair in internal and external environments Gravity-feed crack repair in horizontal surfaces Pressure injection crack repair using ports Bonding and sealing of fractured concrete sections Epoxy mortar repairs when mixed with aggregate Notes Mix two components thoroughly before application Apply via gravity-feed or injection system depending on crack orientation Suitable for use between 10°C and 35°C Working time approximately 20 minutes Ensure cracks are clean and free of debris prior to application For vertical cracks, use injection ports with appropriate capping paste Allow full cure before applying additional finishes or loads Technical Information Technical Specifications: Type Two-component epoxy crack injection adhesive Viscosity Super low viscosity (for fine crack penetration) Crack Width Range Approx. 0.05mm – 3mm Working Time Approx. 20 minutes Full Cure Time Approx. 24 hours Application Method Gravity feed or pressure injection Substrates Concrete and masonry Location Internal and external Colour Amber tint Temperature Range Approx. 10°C – 35°C Packaging 470ml dual cartridge This epoxy system is designed for structural crack repair where deep penetration and bond strength are critical. Its low viscosity formulation allows effective filling of fine cracks, restoring integrity to concrete substrates in both residential and commercial applications.
