Update: June 2, 2026
Bambu Lab has now fully discontinued PETG HF. The US store page carries an explicit notice: "PETG HF is discontinued and will not be restocked once sold out." This goes beyond the refill phase-out covered when this article was first published. The entire product line is being cleared out. Whatever remains in Bambu's warehouse is all there will be. The section below has been updated to reflect the current situation.
What changed
What started as a quiet refill discontinuation in non-black colors has become a full product exit. Bambu Lab's US store now displays an explicit notice on the PETG HF product page stating the material is discontinued and will not be restocked once current inventory sells through. This applies to all SKUs, including the spool versions that were still available when this story first broke in April.
The sequence followed a pattern Bambu has used before. PETG Basic disappeared from the store without announcement, PETG HF took its place, and now PETG HF is being phased out as PETG Basic returns with a reformulated, lower-stringing formula. The community forum thread on PETG HF alternatives went active this week, with users comparing third-party options as the reality of a full discontinuation set in.
Bambu has not published a timeline for when remaining PETG HF inventory will run out. Given the active community interest and buyers stocking up, popular colors and the black refills that were the last SKUs standing are likely to clear faster than a normal sell-through pace.
Why this matters
PETG HF was a specific selling point for Bambu's high-speed printers. The HF formulation flows cleanly at 300 millimeters per second and above without the stringing and oozing that traditional PETG produces under speed. For owners of the X1 series and P1 series who built workflows around fast PETG functional parts, the full discontinuation is a more disruptive change than the original refill phase-out suggested.
The replacement is PETG Basic, which Bambu relaunched in March 2026 with a reformulated compound designed to reduce moisture sensitivity and stringing. Bambu is clearly positioning PETG Basic as the successor. It is a different product with different performance characteristics, and users who relied on HF for high-speed printing will need to re-evaluate their settings and expectations rather than treating it as a drop-in swap.
What this means for buyers
PETG HF is gone once current stock clears. If you are mid-project and color-matching is critical, buy what you need now before inventory runs dry. For ongoing PETG workflows on Bambu hardware, Bambu PETG Basic is the official path forward. If you need high-flow PETG from a third party, Polymaker's PETG and Siraya Tech's PETG HF line are both tuned for speed and AMS compatible.
What to switch to
Several brands produce high-flow PETG variants that hold up well at the speeds Bambu's printers run. Siraya Tech ships a PETG HF line specifically marketed for high-speed printing. Polymaker's PETG, released in late 2025 with a high-flow formula and strong layer adhesion, is AMS compatible and has become a common recommendation in the community for users leaving the Bambu ecosystem on filament. eSUN and Overture both offer PETG products that perform well at moderate-to-high speeds when properly dried before use.
For most everyday functional printing where speeds stay under 250 millimeters per second, standard PETG from a quality brand is fully adequate. Diameter tolerance and moisture content matter more than brand name when chasing print quality at speed. If your use case is genuinely speed-bound, verify that the filament you are evaluating has published flow rate data rather than relying on marketing language.
Track current PETG pricing
If you need to source PETG to replace your Bambu HF supply, the live PETG listings on the tracker show current pricing across every brand we monitor. For a deeper look at how PETG compares to other materials and what to expect from each grade, the PETG guide covers the technical side.