What does crazing in plastic indicate about its durability?

Crazing in plastic refers to the formation of fine cracks or fissures on the surface, often due to stress, exposure to solvents, or UV radiation. When crazing occurs, it indicates that the structural integrity of the plastic has been compromised, leading to a weakening of the material. This weakening can promote further degradation and reduce the overall durability of the plastic, making it more susceptible to failure under stress or impact. Therefore, the presence of crazing serves as a clear signal that the plastic is no longer as strong or resilient as it once was, validating the indication of reduced durability.