Rosa3D PVA

PVA filament, i.e. polyvinyl alcohol, is a water-soluble thermoplastic. For this reason, it will be perfect as a support material in complex prints made of other materials (e.g. PLA, PET-G, TPU, PA).

The improved version - PVA-2 - is characterized by higher temperature resistance, making it perfect as a support material when printing from materials for technical applications. PVA-2 filament can be used in an actively heated chamber at a temperature of up to 70°C.

By using PVA on a two-head printer, you can print models in one go that would otherwise require printing in parts, gluing, or would not be possible at all!

After printing, simply immerse the model in warm water (but not exceeding the thermal deformation temperature of the filament from which the actual part of the print is made). Depending on the dimensions of the model and the amount of PVA used, such a bath may take from several minutes to several hours. Mixing the water in the tank can speed up the process of dissolving the supports.

PVA is printed at low temperatures, in an open printer and an unheated bed. Due to its strong hygroscopicity, the filament must be stored in a tightly closed bag or container with a moisture absorber. Storing PVA away from sunlight and at a temperature between 15°C and 25°C will extend its life.

Recommended printing parameters:

extrusion temperature: 190-215 ° C

bed temperature: 50-70 ° C

printing speed: 20-50 mm / s

Filament can be printed on unheated tables. In the event of adhesion problems, we recommend the use of an adhesive. Cooling the printout is recommended. Its power should be adjusted to the capabilities of the printer and the geometry of the printed model.

PVA PRODUCT PARAMETERS

Diameter: 1.75 mm

The filament is vacuum packed with a desiccant.

PHYSICAL PARAMETERS of PVA

Density: 1.25 g / cm3

Odor: odorless

Heat deformation temperature: 41.5 ° C (HDT A according to ISO 75; 1.8 MPa; 120 K / h)