eSUN natural PVA is a water-soluble 3D printing material made from fossil resources. It is an inexpensive, biodegradable filament that can be dissolved in tap water without the need for any solvent. Once removed, it leaves clean and smooth surfaces enabling the production of complex 3D models with intricate geometries and cavities. It is one of the most popular PVA filaments on the market. Harmless and non-toxic, it can be used by anyone.

eSUN natural PVA is a soft material. It comes in a yellowish color. It should be printed at low temperatures to avoid nozzle clogging. It is optimized for use on both single- and dual-extrusion 3D printers. It delivers consistent print quality and optimum layer adhesion. Since it is a moisture-sensitive material, eSUN ships it in resealable bags with desiccant for storage and freshness. It is available in 1kg spools. The uniform and accurate diameter of 3mm (2.85mm) streamlines the extrusion process.

The below-pictured 3D model has been printed with the aid of eSUN PVA support structures. The two pictures show how it looked before and after removal.

Specifications

eSUN natural PVA technical data

• Printing temperature: 180 - 210 °C
• Heated bed temperature: Not required / 60 - 80°C recommended
• Filament density: 1.25 g/cm³ 
• Tensile Strength: 22 MPa
• Elongation at Break: 360%

Spool specs

• Filament diameter: 3mm (2.85mm)
• Dimensional Accuracy: ±0.05
• Spool weight: 1kg
• Color name: Natural
• Color attribute: Solid

The eSUN natural PVA is a moisture-sensitive material. Thus, it comes in 1kg spools vacuum-packed in a bag with moisture-absorbing desiccant.