Although barium sulfate is almost completely inert, zinc sulfide degrades upon exposure to UV light, leading to darkening of the pigment. The severity of this UV reaction is dependent on a combination of two factors; how much zinc sulfide makes up the pigments formulation, and its total accumulated UV exposure. Depending on these factors the pigment itself can vary in shade over time, ranging from pure white all the way to grey or even black. To suppress this effect, a dopant may be used, such as a small amount of cobalt salts, which would be added to the formulation. This process creates cobalt-doped zinc sulfide. The cobalt salts help to stabilize zinc sulfide so it will not have as severe a reaction to UV exposure.
25877 bearing. Improved reliability The precision engineering of the 25877 bearing ensures consistent performance and reliability, reducing the risk of costly breakdowns and production delays.
In aerospace engineering, these bearings endure extreme conditions, providing reliability and safety in aircraft components like turbines and landing gears In aerospace engineering, these bearings endure extreme conditions, providing reliability and safety in aircraft components like turbines and landing gears67048 bearing.