What is PVA?
PVA stands for polyvinyl alcohol, a soft and biodegradable polymer that is highly sensitive to moisture. When PVA is exposed to water, it dissolves, which makes it perfect to function as a support material for 3D printing. PVA can be used to fill cavities and hollow spaces in a model, which allows printing more complex shapes. After printing, PVA support filament can be removed easily and without markings by dissolving it in warm water.
PVA is a synthetic polymer that is created by polymerization of vinyl acetate, which is then hydrated. This creates a translucent or white material that is highly sensitive to moisture but can still serve as a filament in FDM 3D printing.
PVA is a soft and flexible material that can be easily used to fill small cavities and spaces in complex models, which can later be removed using only water, because PVA is dissolvable in water.
PVA's main application is support material due to its unique composition and properties, and can help achieve highly complex models and greater design freedom.