Bambu Lab PVA Support Filament 1.75mm 500g

Support material that dissolves in water. Print it alongside your model, drop the finished part in water, and the supports simply disappear — no cutting, no scarring, no snapped-off detail.

It's the answer for geometry you can't reach with pliers: internal channels, captive moving parts, lattice structures, deep undercuts.

At a glance

Keep it bone dry

Water absorption is 6.25% — by far the highest of anything we sell, and about two and a half times the thirstiest nylon. That is not a flaw; it is the same property that makes it dissolve. But it means an opened spool left on the bench in Singapore will be unusable within days.

Store it sealed with fresh desiccant the moment you finish a print, and dry at 80°C for 8–12 hours before use. Damp PVA foams and stringers badly, and will clog a nozzle.

Which support material?

PVA — dissolves completely in plain water. The only option for enclosed or inaccessible geometry. Most expensive, and the fussiest to store.

Support for PLA/PETG, Support for ABS, Support for PA/PET — break-away materials, cheaper and far easier to handle. They peel off by hand and leave a clean interface, but you have to be able to reach the support to remove it.

Most people keep a break-away support for everyday work and reach for PVA only when the geometry demands it.

Worth knowing

Warm water and agitation speed it up. A tub of warm water with the part in it will do the job overnight; stirring or a small aquarium pump makes it much faster.

Cooling fan on, and keep the bed cool at 35–45°C.

Don't pour dissolved PVA down a drain in volume — let it settle and dispose of the residue sensibly.