UV 三防漆涂层是一种通过Rapid curing under ultraviolet (UV) irradiationThe core function of the coating is to provide moisture, corrosion, and mechanical damage protection for electronic components such as PCB circuit boards.

• The curing process of UV three proof paint does not rely on solvent evaporation, but rather triggers a polymerization reaction of the photosensitive resin in the coating through specific wavelengths of ultraviolet light (usually 200-400nm), which changes from liquid to solid protective film within seconds to minutes.
• If the coating needs to cover the shadow area of the component (UV rays cannot be directly irradiated), some products will add a “double curing” component, first UV curing the surface layer, and then curing the deep layer through moisture or heat to ensure complete overall curing.
• No need for high-temperature baking, higher compatibility with heat sensitive electronic components such as chips and sensors.

1. Core advantages:

Fast curing speed: It can be cured in 10-60 seconds under conventional UV irradiation, greatly improving the production efficiency of electronic manufacturing and suitable for batch assembly line operations.

2. Main limitations

依赖光照条件：仅能固化紫外线可照射到的区域，对结构复杂、有深腔或遮挡的元件需搭配其他固化方式。

对基材清洁度要求高：基材表面若有油污、灰尘，会直接影响涂层附着力，施工前需彻底清洁。