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PVA Filament

PVA is a water soluble material often used as a support structure for more complex prints
Overview | Positives & NegativesHardware Requirements

An Overview of PVA Filament

PVA, or Polyvinyl Alcohol, is a soft and biodegradable polymer that is highly sensitive to moisture.

When exposed to water, PVA will actually dissolve, which makes it a very useful support structure material for 3D printing.

When printing extremely complex shapes or ones with partially enclosed cavities, PVA supports can be used and easily removed by dissolving in warm water. Standard supports may have been difficult to print or remove in these situations. PVA can also be used as a model material if there is a need to make quick prototypes.

Positives

  • Great water dissolvable support material
  • No special solvents required
  • No additional hardware required

Negatives

  • Moisture sensitive
  • Airtight storage containers required
  • Greater chances of clogging if the nozzle is left hot when not extruding
  • Expensive

Typical Hardware Requirements

Printer Bed

Temperature: 45-60 °C
Heated Bed Optional
Enclosure Not Required

Build Surface

PEI
Painter’s Tape

Filament Extruder

Temperature: 185-200 °C
No special hotend required

Cooling Fan

Part Cooling Fan Required

Getting Started

Common Applications

  • Removable supports or rafts
  • Dissolvable/Disintegratable applications
  • Decorative parts

Popular Brands

  • Ultimaker PVA
  • Matterhackers PVA
  • eSun PVA
  • HobbyKing PVA

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