What is PVA filament?
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 the model design which allows more complex shapes. After printing, PVA support filament can be removed easily and with no marking by dissolving in warm water.