1.The structural strengthening adhesive has high strength (compressive strength >65MPa, steel steel tensile bonding strength >30MPa, shear strength >18MPa). It can withstand large loads, and is resistant to aging, fatigue and corrosion. It has stable performance in the expected life and is suitable for bonding with strong structural member.

2. The strength of the non structural adhesive is low and the durability is poor. It can only be bonded, sealed and fixed because of it's properties. It can not be used for the bonding of structural strengthening memeber.

3. The service life of structural strengthening adhesive is generally more than 50 years, and the components bear large and complex stress, which directly relates to the safety of life and property of the personnel. The structural adhesive should be used for structural strengthening member.