The Ultimaker PVA (polyvinyl alcohol) is a water-soluble support material for multi-extrusion 3D printing. With good thermal stability, Ultimaker PVA is ideal for printing complex models that require supports for large overhangs, deep internal cavities, and intricate geometries. Designed for a seamless 3D printing experience, our PVA provides good adhesion to both PLA and Nylon. It has printing complex models that require supports for large overhangs, deep internal cavities, and intricate geometries. This is 750g in weight and has natural colour. * Biodegradable with no hazardous by-products * Good thermal stability * Great adhesion to both PLA and Nylon * Little moisture sensitivity * Safe dissolution in tap water (no harmful chemicals required) * It has a 2.85mm diameter