PVA (Polyvinyl Acetate) filament prints translucent with a slightly yellow tint and is primarily used as a 3D printing support material because it is water-soluble and must be kept dry prior to use. PVA is most often used with 3D printers capable of dual extrusion: one extruder printing a primary material (such as ABS or PLA) and the other printing this dissolvable filament to provide support for overhanging features.

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