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What is structural adhesive for steel bonding? A simple guide to choosing the right structural adhesive.

发布时间：2026-07-31

Author: Internet

Steel‑bonding adhesive is a high‑strength, two‑component (A and B) reactive curing epoxy resin structural adhesive. It primarily achieves effective bonding between steel plates and substrates such as concrete, forming a composite load‑bearing system that synergistically enhances the structure’s load‑carrying capacity and stiffness, thereby realizing structural reinforcement and strengthening.

　　Steel‑bonding adhesive is a high‑strength, two‑component (A and B) reactive curing epoxy resin structural adhesive. It primarily achieves effective bonding between steel plates and substrates such as concrete, forming a composite load‑bearing system that synergistically enhances the structure’s load‑carrying capacity and stiffness, thereby realizing structural reinforcement and strengthening.

　　The epoxy resin to hardener ratio for steel‑bonding adhesives used in structural reinforcement typically comes in two formulations: 3:1 and 2:1. Among domestic brands, these two ratios are roughly equally prevalent, whereas foreign‑owned companies predominantly use the 3:1 formulation. Moreover, the 3:1 mix exhibits superior overall mechanical performance, for the following reasons:

　　First, epoxy resin serves as the primary adhesive matrix; its benzene rings and hydroxyl groups endow the steel‑bonding adhesive with high bonding strength and excellent creep resistance. In the 3:1 formulation, the epoxy resin content is 75%, higher than the 67% in the 2:1 formulation. Second, the amine curing agent used in the 3:1 formulation exhibits superior purity and overall performance. In summary, the 3:1 formulation demonstrates superior comprehensive performance compared to the 2:1 formulation.

　　Tianli Xin TLS‑401 steel‑bonding adhesive is a modified epoxy resin composed of two components, A and B, with an A:B mixing ratio of 3:1. Building on the successful development of advanced adhesive formulations both domestically and internationally, it incorporates cutting-edge nanotechnology into the adhesive formulation. By leveraging the mutual solubility between nano‑inorganic materials and the bonding resin, this product enhances its adhesive performance while delivering excellent workability.

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