Polyethylene (PE) optical cable sheath material is an outer protective material designed for optical fiber cables, with excellent mechanical strength, weather resistance and insulation properties. “PE” can stand for various things, such as “Polyethylene”. As the first line of defense for cables, it can effectively resist external factors such as moisture. Polyethylene sheathed cables offer good resistance to oils, water, chemicals and abrasions making them commonly specified in heavy industry. These compounds are designed to withstand environmental stressors, and heat deformation, and track. Fiber optic cable jackets are typically made from three mainstream materials: A simple summary: A common misconception is that flame-retardant means the cable will not burn. Flame-retardant means the material will not accelerate burning and tends to self-extinguish once the flame source is removed.