PVA
Sep 08

PVA

PVA @DF is quickly soluble in water, bonds well to plastics and prints easy. Therefore it is an excellent supporting material for dual extruder 3D printing. This polyvinyl alcohol-based filament is non toxic and biodegradable once dissolved in water. For applications other then supporting material PVA is also available in colours and has a high tensile strength.

PVA features:

  • Excellent water solubility
  • Easy to print at low temperature
  • Good bonding to various plastics such as PLA and ABS
  • Biodegradable when dissolved in water
  • Limited smell
Sizeø toleranceRoundness
1,75mmø 0,05mm95%
2,85mmø 0,10mm95%
DescriptionTestmethodTypical value
Specific gravityASTM D15051,23 g/cc
MFR 190˚C/21,6 kgISO 113314-20 g/10 min
Tensile strength at yieldISO 52778 Mpa
Strain at breakISO 5279,9%
Tensile modulusISO 5273860 Mpa
Impact strength - Charpy notched 23˚CISO 1791,6 kJ/m²
DescriptionTestmethodTypical value
printing temp.DF205±10ºC
melting temp.-163ºC
vicat softening temp.ISO 30660,2˚C

Colours:

PVA is available in its natural colour.
For specific applications PVA is available in colours on request.

na1

Packaging:

PVA is available in nearly any type of  packaging and labelling, but will be supplied always in a vacuum bag, due to the moisture sensitivity of PVA. Ask our team to help you customizing your product.

Additional info:

Recommended temperature for heated bed is ± 35-60˚C. Do not exceed a printing temperature of 225˚C, because then PVA crystallizes quickly and it will no longer flow and/or dissolve in water. .
The speed at which the product dissolves in water is dependent on the volume of the printed object and the temperature of the water. PVA dissolves in cold water. Higher water temperature (up to 70˚C is no problem) will accelerate the dissolution.
PVA can be used on all common desktop FDM or FFF technology 3D printers.


Storage:

Cool and dry (15-25˚C) and away from UV light. This enhances the shelf life significantly.