For years, PU spray coating has been the mainstream solution for upgrading silicone’s tactile feel and anti-dust performance, yet it comes with obvious drawbacks.
For one thing, the coating layer usually peels off within just a few months. For another, the spraying process produces pollutants, making it unsuitable for medical and food-grade products.
Instead of ink-based spray coatings, UV surface treatment forms a permanent protective film on silicone substrates via ultraviolet irradiation. The finished surface delivers smooth, non-stick and dust-resistant properties that remain stable throughout the whole service life of products.
This process is far more eco-friendly than traditional spraying: it eliminates VOC emissions, while cutting energy consumption and shortening production cycles.
This technology not only optimizes the hand feel and durability of silicone components, but also boosts scratch resistance, corrosion resistance and anti-static performance. UV-treated surfaces retain uniform smoothness and gloss, providing a premium user experience far superior to conventional coating processes.
OTI will keep optimizing this UV treatment technology, expand its application scope across our full product line, and supply innovative, eco-friendly, sustainable solutions to partners worldwide.
