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PVA 1.75mm Soluble Filament
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PVA 1.75mm Soluble Filament

Price per Unit (piece): £81.30 inc. VAT

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Introducing Water Soluble PVA 1.75mm / 1.8mm filament! 

This polyvinyl alcohol plastic comes in our custom extruded 1.75mm / 1.8mm filament size. You can just swap the filament from your extruder, and load in the PVA plastic, and then dissolve your parts in water. This plastic builds parts just like ABS, or PLA, and the prints come out a matte white color. It's one kilogram on our heavy duty spool, and ships vacuum sealed with desiccant.

We call this filament an "experimental" plastic, because your extrusion temperatures will be different (160-175C) from standard ABS settings, and you should make sure not to bring it to ABS melting point temperatures. Please read the below instructions and adjust your machine prior to use. There may be some tweaking of your settings for optimal output. When complete, the parts can then be dropped into cold water to dissolve.

Make sure to read the usage instructions and warnings on the Water Soluble PVA Wiki page

Companies have come up with a few uses for water soluble components and the possibilities are amazing! Some of the applications include: making soluble molds, building removable support structures, biotechnology applications, or fascinating science experiments of your own creation.  We love introducing products like this, because inevitably, the best uses will come from you! Send us your ideas and your results, we'd love to see them! This plastic is off white- and smells a bit like white craft glue.

The science behind Water-Soluble Polyvinyl alcohol:

• Melt flow index (190 oC, 2.16kg); 1.5 – 3.5 g/ 10min
• Melting point; 160 – 170C
• Glass Transition Temperature; 45 – 55C
• Specific Heat; 0.4 cal/ gC
• Density; 1.25 – 1.35 g/cm3
• Solubility into water; soluble into cold water

Recommended uses; Manufacture of water soluble shaped articles by melt extrusion

Water-Soluble PVA filament can be used on 1.75mm / 1.8mm plastic filament extruders for the processing of thermoplastic poly olefins. The material absorbs moisture once the packaging is opened and should be therefore processed only from the unopened original bag. Otherwise bubbles may occur in the molding. Damp material can be dried at 60 – 80C for 6 – 8 hours in a circulated air dryer. Suitable processing temperature would be from 180 – 200C range and it should not exceed 200C because of at higher temperatures the material suffers thermal damage. Residence time should be as short as possible, 5 – 10 minutes at most.

Storage:
Water Soluble PVA remains stable for at least 12 months in its original container provided if it is stored correctly, i.e. indoors at room temperature and dry condition. Like all thermoplastics, Water Soluble PVA must be stored in a cool place. Keep Water Soluble PVA sealed in an airtight container when not in use.

For additional documentation, click here:

Water Soluble PVA Wiki page
PVA Data Sheet
PVA Manufacturers Safety Data Sheet

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