When was fibreglass first used?

Fiberglass was first developed in the 1930s, with the earliest commercial production occurring in 1936 by the Owens Corning company. The material gained popularity in the 1940s, particularly during World War II, for its lightweight and strong properties, making it suitable for various applications, including aircraft and automotive components. Since then, fiberglass has become widely used in construction, boating, and various industrial applications.