Is Fiberglass Plastic or Glass?
Fiberglass is both glass and plastic, depending on how it is used. Let’s clarify: 1. Fiberglass as Glass: The primary component of fiberglass is glass fibers. These are made by melting silica sand (and other minerals) and drawing it into thin, flexible strands. In forms like insulation (batts, loose-fill), fiberglass is pure glass fibers held together with a binder. Here, it’s essentially glass in … Read more