Is it true or false that fiberglass is heavier and more expensive than steel?

Fiberglass is generally lighter than steel, which is one of its significant advantages, especially in aerospace applications where weight reduction is critical. This lightweight property allows for improved fuel efficiency and performance in aircraft. Additionally, while fiberglass can be more expensive to produce than some forms of steel, it ultimately depends on specific formulations and manufacturing processes. Thus, the assertion that fiberglass is heavier and more expensive than steel is false. This understanding reflects the fundamental differences in the properties of materials used in aerospace and helps highlight why fiberglass is often chosen for certain applications despite its cost.