HLS Coatings （Shanghai）Co.Ltd Cases

Case Study: Solvents in Anodic Electrophoretic Coatings Alcohol ether solvents serve as key cosolvents for anodic electrophoretic coatings, functioning to improve resin solubility and enhance the leveling performance of coating films. Because their dosage has an outsized effect on bath stability and ...

Yellowing of electrophoretic coatings after baking is a common quality issue in the electrophoretic coating process, which is particularly prominent on light-colored or white coating films. The yellowing of electrophoretic films is not caused by a single factor but results from the combined effects ...

This article focuses exclusively on waterborne coating systems and summarizes six core, practical causes of post-storage thickening, which are highly consistent with on-site production conditions. 01. pH Value Fluctuation (Most Common Inducement) 1. Low system pH and insufficient neutralizationAlkal...

Case Study: Main Factors Affecting Yellowing of Light-Colored Electrophoretic Coatings Yellowing of electrophoretic coatings after baking is a common quality issue in the electrophoretic coating process, and it is particularly prominent on light-colored or white films. Yellowing is not caused by a ...

Effects of Wet‑Spraying and Dry‑Spraying on Water‑Based Paint Performance Wet‑spraying: Paint droplets reach the workpiece in a liquid wet state, allowing sufficient time for flow and emulsion particle coalescence to form a continuous paint film. Dry‑spraying: A large amount of moisture evaporates ...

Case Study: Electrical Breakdown in Electrophoretic Coating Electrical breakdown is one of the most disruptive and costly defect classes on electrophoretic coating (electrodeposition) lines. It occurs when the local electric field strength exceeds the dielectric strength of the newly deposited film, ...

Case Study: Functions and Maintenance of Degreasing Solution in Electrophoretic Coating The purpose of degreasing is to remove grease and oil contaminants from workpiece surfaces, providing a clean, activated substrate for subsequent phosphating and passivation. Control of the degreasing solution ...

Case Study: Cratering in Waterborne Coatings after Long-term Storage Cratering in waterborne coatings rarely appears at the moment of manufacture; it develops gradually during static storage and becomes obvious only after spray application. The defect stems from unbalanced surface tension, foreign ...

Case Study: Influencing Factors of Thickening of Waterborne Coatings During Storage This case focuses exclusively on waterborne coating systems and summarizes six core, practical causes of post-storage thickening that are highly consistent with on-site production conditions. Thickening during ...