Bambu Lab PLA Silk Multi-Color Filament 1.75mm 1kg

Two (or four) silk colours blended into a single strand, so the print shifts smoothly between them as it builds — no swapping spools, no AMS colour changes, just one filament with a gradient baked in. Same high-gloss, silky finish as Silk+, but with the colour transition doing the work instead of a flat tone.

Because the blend is fixed to the strand, rotating the model, changing its orientation on the plate or printing large models changes where the colour transition lands — worth test-printing before committing to a big model if you want a specific look.

At a glance

Worth knowing

Silk finishes show layer lines less than a matte or standard surface — the sheen catches and scatters light in a way that hides them, same as Silk+. That effect holds across the colour transition too, so gradients read smoothly rather than banding at each layer.

For best results, refer to Bambu's guide: Printing with Silk Filaments.

Storage

Bambu specifies under 20% RH, sealed with desiccant. A sealed box with fresh desiccant does the job, or a filament dryer if you have one. Drop a cheap hygrometer in the box so you're not guessing.

As filament takes on moisture you'll hear popping or hissing at the nozzle, then see stringing and rough surfaces, and eventually the strand goes brittle enough to snap in the tube. That's almost always moisture, not technique. Dry it at 55°C for 8 hours and it usually comes back.