UV glue is also known as shadow glue. Many UV glue is transparent after being curious. However, sometimes the UV glue after curing is found to have a yellowing phenomenon. Now there are the following points for UVLED to analyze the cause of yellowing after the UV glue curing. First, the wavelength does not match. For most UV glue is the ultraviolet light of 365nm wavelength, if it is 395nm, 385nm, and 405nm bands, the glue will be yellow. Second, the strength of the light, UV glue has a fixed energy, which will not be yellow into this energy range, and only when the energy is too high. Third, some UV glue is yellow because of the long time, and a small number of UV glue is yellow. If you want to know more about UV glue, please consult the official website of Tianhui or contact me to help you solve the problem.
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