Polyvinyl alcohol (PVA) filament is a versatile and unique material commonly used in 3D printing, especially for support structures and soluble applications. It is known for its water-solubility, making it a popular choice for printing complex models that require temporary support material, which can be dissolved after the print is completed. This filament is especially favored by 3D printing enthusiasts and professionals who work with dual-extrusion printers or need to create intricate designs that would be difficult to print with traditional support materials like PLA or ABS.PVA is a synthetic polymer made by the polymerization of vinyl acetate, which is then partially hydrolyzed to produce polyvinyl alcohol. The filament is typically available in both natural and colored variations, although the natural PVA is most common in 3D printing.