Omnistab UV 312 acts as a UV absorber belonging to oxanilide class. Imparts outstanding light stability to plastics and other organic substrates. Features strong UV absorption, excellent compatibility in a wide variety of substrates, and low volatility. Protects polymers as well as organic pigments from UV radiation, helping to preserve the original appearance and physical integrity of molded articles, films, sheets, and fibers during outdoor weathering. Shows no impact on color & transparency of the substrate. Exhibits thermal stability, excellent chemical resistance, no reactivity with alkalis, additional thermal stability to polyamides. Also shows low wavelength absorbance. It can be combined with optical brighteners. Suitable for polyesters, PVC plastisol, polyurethanes, polyamides, polymethylmethacrylate, polybutyleneterephtalate, polycarbonates and cellulose esters. Recommended for rigid and flexible PVC and polyesters. Use level of Omnistab UV 312 ranges between 0.10 and 1.0 %, depending on substrate and performance requirements of the final application.
Omnistab UV 312 has low volatility, good thermostability, and doesn’t react with catalyst residue,filler, metal ion due tosurface contact. It will protect plastic color from influence of metal ion. UV312 has the strong absorption in UV-Bwave band.Recommended to be used with flourescent brightener and Uv irradiation crosslinking system, especially applied toPC and PET.