① Select different adhesives based on the operating temperature of the product. For normal temperature applications, most adhesives such as hot melt adhesives and instant adhesives can meet the requirements. According，epoxy resins are suitable for use below 120°C; rubber adhesives are suitable for use below 80°C; silicone adhesives are suitable for use below 200°C.

② Choose adhesives according to the natural environment where the product will be used. For outdoor environments involving factors like temperature fluctuations, humidity, dryness, or UV exposure, consider weather resistance and opt for adhesives such as silicone, epoxy, polyurethane, or modified silane.

③ Select adhesives based on the chemical environment of the product, taking into account factors like acids, alkalis, salts, oils, and gases.

④ Choose adhesives according to the physical environment of the product, considering factors such as stress, vibration, and pressure on the bonded area.