Bambu Lab PETG Matte Filament 1.75mm 1kg

PETG with a flat, non-reflective finish. The matte surface scatters light instead of bouncing it, so layer lines largely disappear and colours read as soft and solid rather than plastic-shiny — good for display pieces, enclosures and anything you'd rather looked designed than printed.

Underneath the finish it is still PETG: tougher and more weather-resistant than PLA, and happy to print without an enclosure.

At a glance

Spool or Refill?

Spool — Comes on a reusable Bambu spool. Pick this for your first roll of a colour.

Refill — Filament only, $2 cheaper, needs an empty reusable spool to mount on. Less plastic in the bin, less money out of your pocket.

Worth knowing

It is the stiffest PETG we stock. Young's modulus is 3349 MPa against PETG Basic's 2780 — so a flat panel or a bracket holds its shape better under load. The matting agent that kills the gloss also adds rigidity.

The trade is strength and toughness. Tensile strength is 42.9 MPa against Basic's 51, and impact 26 kJ/m² against 34.2. Stiffer, but it gives less before it goes. For a part that gets knocked about, Basic is still the better pick; for one that must not flex, this is.

Layer bonding is unusually good. Stiffness across layers is 3174 MPa against 3349 in plane — within about 5%, where most materials lose a third or more. Orientation still matters for impact, but a Matte part is far less directional in stiffness than the rest of the range.

It also runs faster than PETG Basic: up to 250 mm/s against 200 mm/s.

Storage

Same regime as PETG Basic: under 20% RH, sealed with desiccant, and 60–65°C for 8 hours before printing. 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 and it usually comes back.