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Common Defects in UV Wood Coatings (Part 3)
In the industrial coating of UV wood coatings, roll coating has become the preferred method for applying finishes to flat wooden products due to its high efficiency and ability to deliver uniform film application. However, a recurring coating defect often appears during roll coating: the surface of the paint film exhibits strip-like patterns that run parallel to the direction of roller movement. These patterns display distinct periodic characteristics, with spacing consistent with either the circumference of the roller or the pattern embossed onto its surface. In severe cases, the streaks are coarse and highly visible; in milder instances, one must rely on oblique lighting to discern faint, varying shades of shadow along the lines. The paint film thickness is uneven at the locations where these streaks occur—areas that protrude feel rough to the touch, while recessed areas exhibit slightly lower gloss. When applied to colored or high-gloss finishes, this phenomenon can lead to inconsistent color tones or noticeable differences in gloss, severely compromising the aesthetic appeal of the final product. The formation of roll marks is by no means accidental; rather, it stems from a complex interplay of technical factors ranging from equipment precision to coating properties.
2026-03-11
Common Defects in UV Wood Coatings (Part 2)
While UV wood coatings enhance the aesthetic appeal and protective performance of wooden furniture, process deviations during application often lead to a variety of surface defects. Orange peel is one such common issue: it creates regular, undulating patterns on the otherwise smooth paint film, undermining the intended silky texture of the coating. Particularly in high-gloss finishes, this orange‑peel–like texture causes light reflections to scatter haphazardly, replacing the anticipated mirror-like effect with distorted, muddled reflections. The pronounced unevenness felt upon touch further diminishes the product’s tactile quality. Behind the phenomenon of orange peel lie numerous technical nuances—ranging from the rheological properties of the coating to precise control of the application environment—each deserving thorough investigation.
2026-03-11
Common Defects in UV Wood Coatings (Part 1)
In the fields of modern furniture manufacturing and wood product coating, UV wood coatings have become the preferred coating solution for numerous enterprises, thanks to their outstanding characteristics such as rapid curing speed, high production efficiency, and superior environmental performance. However, in actual production applications, UV coating is not always smooth sailing. Due to improper process control, inadequate substrate preparation, or changes in the operating environment, various coating defects frequently occur, severely impacting both the aesthetic quality and service life of products. Among these, complete delamination—a typical form of adhesion failure—is particularly insidious and highly destructive; it often only becomes apparent after coating has been completed or even after the product has been delivered, imposing substantial rework costs and reputational damage on manufacturers. Thoroughly analyzing the characteristic features, affected areas, and underlying root causes of this phenomenon is not only crucial for improving coating quality but also forms the foundation for achieving process optimization and mitigating systemic risks.
2026-03-11
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Boxing New Materials cordially invites you to visit the 2025 China International Coatings Exhibition.
UV monomer with a curing speed more than 30% faster than that of trifunctional monomers
Low-irritation version of HDDA
A high-refractive-index UV monomer
Although it’s quite ordinary, it offers great value for the price.
A UV monomer used in fields such as PCB ink, UV curing agents, and offset printing ink.
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