What affects the light energy received by glue?

Release time：2025-12-09

There are three core factors that affect the reception of light energy by glues, especially light-curable glues:

Light source characteristics: the higher the power of the light source, the longer the irradiation time, the stronger the light energy; The wavelength needs to match the glue photosensitive system (e.g., UV glue adapts to 365-405nm wavelength), otherwise it cannot be effectively absorbed;
Glue properties: the darker the glue color (such as black, dark), the stronger the absorption and blocking of light, and the less energy the underlying glue receives; Too thick glue will cause insufficient light penetration, the surface layer will cure while the bottom layer is not cured;
Environmental and construction factors: the farther the irradiation distance, the more obvious the attenuation of light energy; Occlusions (such as components, impurities) in the path of light propagation will block the light; Dust and water vapor in the environment will also slightly weaken light energy conduction.

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