The HIGH PERFORMANCE STRUCTURAL ADHESIVE for load-bearing structures is divided into A-grade glue and B-grade glue according to its basic performance. For important structures, cantilevered components, and structures and components that bear the effect of east force, A-grade glue should be used. It can be used for general structures. Use A-grade glue or B-grade HIGH PERFORMANCE STRUCTURAL ADHESIVE.

Whether a HIGH PERFORMANCE STRUCTURAL ADHESIVE can be used in load-bearing structures is mainly determined by the comprehensive evaluation of its safety performance. However, the adhesives belonging to the same load-bearing structure can still be divided into several grades according to the significant differences in their main properties. According to the actual needs of the reinforcement project, the room temperature curing type I structural adhesive is generally divided into two levels, A and B, and its scope of application is defined according to the importance of the structure and the characteristics of the force.

What needs to be pointed out here is that the main difference between the A and B levels of HIGH PERFORMANCE STRUCTURAL ADHESIVE lies in the different qualified indexes of its toughness and heat and humidity resistance. Therefore, in actual projects, the evaluation of the different brands of HIGH PERFORMANCE STRUCTURAL ADHESIVE participating in the competition by the owner and design unit should also focus on this aspect, rather than simply doing a simple strength test to determine the level. Because of the result of this, the short-term strength is often selected, but the inferior HIGH PERFORMANCE STRUCTURAL ADHESIVE is very brittle.