The service life of fiberglass safety helmets is affected by various factors. Generally speaking, under normal use, their service life is 2.5-3 years. Firstly, the aging of materials is a key factor affecting their service life. The resin in fiberglass material will age over time, gradually losing its elasticity and bonding strength. Under the influence of environmental factors such as ultraviolet radiation, high temperature, and humidity, the aging rate of resin will accelerate. For example, safety helmets that are used in direct sunlight outdoors for a long time are more prone to aging of their resin, resulting in brittle shells and decreased strength.

Secondly, frequency of use and usage environment also have a significant impact on the service life. Frequent use of safety helmets can accelerate component wear due to increased friction, impact, and compression. In harsh working environments such as high temperature, high humidity, corrosive gases, etc., the material of the safety helmet will be corroded faster, thereby shortening its service life. For example, in environments with corrosive gases such as chemical plants, the surface of safety helmets may be corroded, affecting their strength and protective performance.

In addition, the maintenance and upkeep of safety helmets also affect their service life. If the safety helmet is not properly stored and maintained after use, such as being randomly stacked or coming into contact with sharp objects, it may cause scratches on the surface of the helmet shell, damage to the helmet lining, and reduce the safety and service life of the safety helmet. Therefore, in order to ensure the protective effect of the safety helmet, it should be replaced in a timely manner according to the prescribed service life. Even if there is no obvious damage to the appearance, a safety helmet that has exceeded its service life may not provide effective protection.