UV coating has pinhole phenomenon-questions-Guangzhou Henghu Trading Co., Ltd

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UV coating has pinhole phenomenon

Number of visits：2893 date：2021-12-26 23:26:06

Abstract：

Dilute the paint appropriately and increase the thickness

Main reasons: the coating is too thin; Roller is too fine; Ethanol, toluene and other non-reactive diluent added too much; Dusty on the surface of printed products.

Solution: Improve the cleaning of the working environment; Add a small amount of leveling agent, wetting agent; Select special UV diluent to dilute and prevent system component incompatibility; Try to increase the thickness of the coating when printing.

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