Why do silicone-insulated cables often feature a fiberglass over-braid?

While silicone rubber provides exceptional flexibility and heat resistance (up to 200℃), its mechanical tensile strength is relatively low. It is susceptible to abrasion, tearing, and “cut-through.” A woven fiberglass braid acts as mechanical armor, protecting the silicone core from physical damage when dragged across industrial floors or pulled through rough steel conduits.