PVC filament, renowned for its durability and moisture resistance, is a versatile material in 3D printing. It's favored for crafting robust prototypes, outdoor signage, and water-resistant components. However, users should be cautious of toxic fumes when heated and its limited heat tolerance. PVC is electrically insulating and resistant to chemicals, but it's not biodegradable. Its broad utility and affordability make it a popular choice, but responsible handling and waste management are essential.