Bambu Lab PETG Basic Filament 1.75mm 1kg

PETG when you need the part to survive something. It holds up to water, UV and heat in a way PLA simply doesn't — so this is what outdoor brackets, garden fittings, tool holders and anything living in a car should be printed in.

Bambu reformulated this line, and the new numbers are better than the marketing suggests. Tensile strength is 51 MPa against PLA Basic's 35, and impact strength 34.2 against 26.6 — so it is both stronger and tougher than the everyday PLA, rather than trading one for the other. The old PETG complaint about stringing has largely been engineered out too.

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

The heat resistance is the real reason to choose it. PETG Basic softens around 69°C against PLA's 60, and shrugs off sunlight and rain. In Singapore that is the difference between a part that lasts outdoors and one that quietly sags.

It runs hotter and slower than PLA: 230–260°C at the nozzle, 65–75°C on the bed, and up to 200 mm/s rather than 300 mm/s. Drying is hotter too, 65°C rather than 50°C, so a dryer set up for PLA will not do the job properly.

Storage

Bambu specifies under 20% RH, sealed with desiccant, and 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 at 65°C for 8 hours and it usually comes back.