Fiberglass is blended with nylon to make strong, high heat tolerant non-stick tools. The fiberglass gives rigidity and strength to these long tools making them durable enough for heavy-duty commercial use. Fiberglass not only adds rigidity to the structure of the tools but also makes the tools high heat tolerant, to 235C, so the tools don’t melt while cooking. The nylon gives the tools their non-stick quality so they won’t scratch non-stick pans.