PVA 3d printing material filament
What is PVA material？ what is used for？
Dowell 3d filament pla filament petg filament pva filament 3d printing material
Introduction:
Polyvinyl alcohol (PVA) is a new class of 3D printing materials used to create supports that hold 3D prints in place. PVA is a synthetic polymer that is soluble in water. It melts at about 200 degrees Celsius, and if heated to higher temperatures, it releases some nasty chemicals.
This is why PVA is used in 3D printing. It can be used in a standard 3D printer extruder to form parts that support other objects, and it adheres well to a heated glass print bed. Once the print is complete, submerge it in water and the PVA part will dissolve leaving the insoluble print left behind. This makes it easier to print complex models that require supports or even models that contain moving parts. If you do dissolve the PVA with water, you need to dispose of it properly, as the sticky residue can clog the drain. Contact your local water utility for suggested disposal methods.
Pros: Water soluble; great support; fairly easy to print
Cons: Releases toxic vapors if overheated; expensive; requires proper disposal
