In practical applications, the bonding situation of the sealant is affected by many factors. There are mainly the following five influencing factors:

A. Properties of the bonded substrate: Substrates with higher surface energy and greater polarity are relatively easier to bond.
B. Types of sealants: Different types of sealants have different bonding properties for various materials.
C. Application environment of the sealant: Temperature and humidity during construction, chemical solvents, pH value, ultraviolet aging, etc.
D. Bonding interface: Roughness, porosity, looseness, smoothness and compactness, planar or curved surface, etc.
E. Construction: Construction environment (temperature, humidity), surface treatment of the substrate (cleaning and applying primer), sealant injection and trimming, etc.

In practical applications, we should standardize the construction process, strictly follow the construction technology of the sealant, fully avoid the bonding failure caused by the unfavorable situations among the above factors, and strengthen the quality control during the construction process.