Troubleshooting
How do I print polypropylene (PP)?
By SSS
Published . Updated .
- Nozzle210–230 °C(410–446 °F)
- Density1.08 g/cm³
Not published: bed, speed, dry.
Nozzle. Source: SUNLU product page · Last checked 20 October 2026
Ranked filaments
| Rank | Filament | Nozzle | Bed | Buy |
|---|---|---|---|---|
| 1 | SUNLU · PP | 210–230 °C410–446 °F | — | |
Product page read 26 October 2026 lists a nozzle of 210–230 °C (410–446 °F) at 30 mm/s or slower, and a bed of 50–60 °C (122–140 °F). One line says apply PC glue. The settings table says bed temperature with PP glue. The printing-tips line says a surface made for PP and PP glue. The catalog bed cell is still blank from the 20 October check. Do not copy another brand's bed onto it. | ||||
| 2 | Fiberlogy · PP | 210–240 °C410–464 °F | 80–100 °C176–212 °F | |
Product page read 26 October 2026 lists 220–250 °C (428–482 °F), bed not required when using packing tape, and drying at 50 °C (122 °F) for 4 h. Surfaces listed are smooth PEI plus PP packing tape, glass plus PP packing tape, and a powder-coated PP plate. The Open Filament Database cell is 210–240 °C (410–464 °F) and a bed of 80–100 °C (176–212 °F). That cell was not copied from this page. | ||||
| 3 | Prusament · PP-GF | 240–250 °C464–482 °F | 90–110 °C194–230 °F | |
Product page read 26 October 2026 lists an extruder of 245 ± 10 °C (473 ± 18 °F), a bed of 95 ± 10 °C (203 ± 18 °F), a hardened nozzle, and enclosure not required. Print surface is a PP sheet, or smooth PEI with PP tape. The Open Filament Database cell is 240–250 °C (464–482 °F) and 90–110 °C (194–230 °F). The page's high-temperature line of 138 °C (280 °F) does not state a load, so it is not a heat-deflection temperature. | ||||
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Print the temperatures and the surface on the spool you bought. The three pages below were read on 26 October 2026, and they do not share a bed. Bed adhesion, warping, and chemical resistance are the neighboring questions.
Three published setups
SUNLU PP lists a nozzle of 210–230 °C (410–446 °F), with a speed note of 30 mm/s or slower. The bed is 50–60 °C (122–140 °F). The key-features line says apply PC glue. The settings table says "Bed Temperature (With PP Glue)". The tips say to use a surface made for PP, apply PP glue, set the part fan to 10%, and print in an enclosed chamber. Drying is listed as 50–60 °C (122–140 °F) with no hour count. Density on that page is 0.9 g/cm³. Heat deflection is listed as 61 °C (142 °F) with no load and no test standard, so it is not compared with an ISO 75 number. The catalog bed cell is still blank.
Fiberlogy PP lists 220–250 °C (428–482 °F). The bed line says not required when using packing tape. The surfaces are smooth PEI plus PP packing tape, glass plus PP packing tape, and a powder-coated PP plate. Drying is 50 °C (122 °F) for 4 h. Enclosed chamber is not required. Airflow is 0–50%. Density is 1.05 g/cm³. Heat deflection is 51 °C (124 °F) at 0.45 MPa, ISO 75. Vicat is 110 °C (230 °F), ISO 306. The Open Filament Database cell on this row is 210–240 °C (410–464 °F) and a bed of 80–100 °C (176–212 °F). That is a different pair from the page.
Prusament PP Glass Fiber lists 245 ± 10 °C (473 ± 18 °F), a bed of 95 ± 10 °C (203 ± 18 °F), a hardened nozzle, and enclosure not required. The print surface is a PP sheet, or a smooth PEI sheet with PP tape. The page says a special print sheet or a separation layer is required, and it describes wiping the sheet with IPA. The database cell is 240–250 °C (464–482 °F) and 90–110 °C (194–230 °F).
The order is unfilled SUNLU, unfilled Fiberlogy, then glass-filled Prusament. It is not a ranking of which polypropylene sticks better.
What the community says
a Reddit thread in r/prusa3d says a large PETG or PP layer makes PLA stick to that sheet.
a Reddit thread in r/prusa3d: A comment says print one PP layer, peel it, and then print normally.
a Reddit thread in r/prusa3d says PP warps without chamber heat and that fiber fill is what stabilizes it.
Pros and cons
Pros
- Every temperature and every surface is a sentence on that product's page.
- The glue words are left as written. SUNLU says PC glue in one line and PP glue in two others.
Cons
- and describe a one-layer PP wipe so that PLA sticks later. That is a comment about a sheet, not a SUNLU setting.
- A comment says PP warps without chamber temperature and that carbon or glass fiber is what stabilizes it. Prusament's glass-filled page says large models without an enclosure. The comment and the page are both reported. They are not merged.
Printer considerations
- Three makers, three beds. SUNLU writes 50–60 °C (122–140 °F) with glue. Fiberlogy says the bed is not required with packing tape. Prusament writes 95 ± 10 °C (203 ± 18 °F) on a PP sheet or PP tape. A shared polypropylene profile would mis-state all three.
- SUNLU's page also says an enclosed chamber to limit warping, and part fan at 10%. Fiberlogy's page says an enclosed chamber is not required, and airflow 0–50%. Prusament's page says enclosure not required for the glass-filled grade. Those are three sentences, not one rule.
- The catalog still shows SUNLU's bed as blank and Fiberlogy's nozzle as 210–240 °C (410–464 °F). The sentences above are the pages read on 26 October 2026.
Sources & notes
Published . Updated .
- SUNLU PP product page manufacturer
- Fiberlogy PP product page manufacturer
- Prusament PP Glass Fiber product page manufacturer
- a Reddit thread in r/prusa3d reddit
- a Reddit thread in r/prusa3d reddit
- a Reddit thread in r/BambuLab reddit
- a Reddit thread in r/BambuLab reddit
- a Reddit thread in r/prusa3d reddit
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Questions
Which bed surface is the official one?
The one on the spool's page. SUNLU names a PP surface and glue at 50–60 °C (122–140 °F). Fiberlogy names packing tape and says the bed is not required with that tape. Prusament names a PP sheet or smooth PEI with PP tape at 95 ± 10 °C (203 ± 18 °F). Bed adhesion and warping are the general pages. They do not replace these three sentences.
Do these pages prove chemical resistance?
Prusament's page says the glass-filled material resists solvents, non-oxidized bases, acids, and oils, and does not give a concentration or a time. SUNLU's page says acids, alkalis, and solvents, again without a test table. Chemical resistance is the page that already refuses to invent that table.