7620 UV-curing Resin applied in UV vacuum electroplating

**Photocurable Polyurethane Acrylate 7620: The "All-Round Armor" for High-End Coatings**  

In the demanding arena of industrial coatings, **photocurable polyurethane acrylate 7620** stands out as a core material for high-end applications such as UV vacuum metallization, ultra-wear-resistant coatings, and UV inks, thanks to its **five key properties: high film hardness, excellent toughness, superior wear resistance, anti-yellowing capability, and outstanding adhesion**. It equips products with an "invisible shield" that combines aesthetics and functionality.  

**High Film Hardness, Diamond-like Protection**  

Post-curing, the coating achieves a surface hardness of 4H or higher, rivaling sapphire glass, effectively resisting daily scratches. This makes it the preferred choice for smartphone mirror coatings and vacuum-metallized luxury metal logos, delivering a premium "touch-resistant" finish.  

**Excellent Toughness, Balancing Rigidity and Flexibility**  

Despite its extreme hardness, the flexible molecular chain design enables the coating to withstand 180° bending without cracking. This breakthrough in "hard yet flexible" performance makes it ideal for dynamic applications like foldable smartphone hinge coatings and curved automotive interior surfaces.  

**Supeior Wear Resistance, Defying Time**  

Leveraging nano-crosslinking technology, the coating endures over 10,000 wear cycles (Taber abrasion test, CS-10 wheel, 1kg load). It is widely used in high-frequency scenarios such as UV topcoats for premium hardwood flooring and smartwatch dials, combating long-term abrasion.  

**Anti-Yellowing, Preserving Clarity**  

With dual protection against UV and oxidation, the coating maintains a color difference ΔE <1 even after 500 hours of outdoor exposure. This ensures lasting clarity for white appliances and transparent packaging coatings, eliminating yellowing concerns over decades.  

**Exceptional Adhesion, Universal Compatibility**  

Achieving a 5B rating per ASTM D3359 on metals, glass, and engineering plastics (e.g., PC, ABS), the coating bonds tightly to substrates without primers. This solves delamination challenges in vacuum-metallized coatings on complex geometries.  

From shimmering vacuum-metallized jewelry to tech-driven wear-resistant electronic screens, polyurethane acrylate redefines high-end coating standards with its "hardness, toughness, stability, and purity," seamlessly unifying industrial aesthetics with enduring practicality.