Yes, it is absolutely necessary to store fluorocarbon rubber O-rings in light-proof packaging.

When storing fluorocarbon rubber O-rings, light exposure is a critical factor, especially direct sunlight and intense ultraviolet radiation. These light sources directly affect the rubber material, accelerating its aging process and causing changes in the physical and chemical properties of the O-rings, which can lead to failure. Therefore, to protect the O-rings from light-induced damage, they must be stored in light-proof packaging.