The shelf life of explosion-proof glass refers to the effective period during which its performance remains stable, typically 10-15 years (referencing the standard GB 15763.2-2005, Safety Glass for Buildings). This period is based on the following factors:
1. Material characteristics: The PVB film in laminated explosion-proof glass gradually ages with ultraviolet radiation, and the stress layer of tempered glass may also weaken over time.
2. Usage environment: High temperature, high humidity, or chemically corrosive environments will shorten its lifespan; for example, in coastal areas, the shelf life may drop to 8-10 years.
3. Maintenance: Regular cleaning and inspection can extend its lifespan; conversely, neglecting maintenance will accelerate performance degradation.
Professional case study: Tests conducted by the China Building Materials Testing & Certification Group (CTC) show that high-quality explosion-proof glass can still meet more than 80% of its impact resistance requirements after 15 years in indoor environments.
