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Typical Defects of UV Resins on Difficult-to-Bond Substrates (VI)
Surface defects are a typical challenge encountered when applying UV‑curable resins to difficult‑to‑adhere substrates, manifesting as irregularities such as craters, orange‑peel texture, or residual air bubbles on the coating surface. This issue is particularly critical in applications with stringent aesthetic requirements—such as automotive interiors and appliance panels—where it directly impacts both visual smoothness and protective performance. Because these substrates exhibit low surface energy, the wetting and spreading behavior of the coating differs from that on conventional substrates; consequently, the causes and manifestations of surface defects are unique and demand systematic analysis and targeted mitigation strategies.
2026-10-09
Typical Defects of UV Resins on Difficult-to-Bond Substrates (Part 5)
In multi‑coat coating systems, intercoat adhesion is a common issue and one of the key defects that must be carefully addressed when applying UV‑curable resins to substrates with poor adhesion. Without strong intercoat bonding between the primer and topcoat, the topcoat may delaminate or blister, compromising the coating system’s aesthetic integrity, protective performance, and service life. For applications such as automotive interiors and appliance panels—where both appearance and durability are critical—insufficient intercoat adhesion can lead to premature coating failure during assembly, use, or environmental aging. Therefore, it is essential to systematically analyze the root causes and implement targeted corrective measures.
2026-10-09
Typical Defects of UV Resins on Difficult-to-Bond Substrates (Part 4)
Insufficient chemical resistance is a typical drawback of UV‑curable resins on difficult‑to‑adhere substrates in specific application scenarios, manifesting as swelling, discoloration, or performance degradation upon exposure to chemicals. This issue is particularly critical in applications such as automotive interiors and appliance panels, which are subjected to prolonged chemical contact, directly impacting product service life and the ability to maintain aesthetic appearance. Due to the incorporation of adhesion promoters and modified resin components, the chemical resistance of UV‑curable resins for challenging substrates differs from that of conventional UV resins, necessitating systematic analysis and targeted mitigation strategies.
2026-10-09
Video Account
Bossin 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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