PP (Polypropylene)

Expert

Polypropylene

Widely used industrial plastic with exceptional chemical resistance, fatigue resistance, and food-safe properties. Notoriously difficult to print due to extreme warping and poor bed adhesion to standard surfaces.

⚠ IMPORTANT: Dry Your Filament Before Every Print

All filaments — including PP (Polypropylene) — absorb moisture from the air. Printing with wet filament causes stringing, bubbling, weak layer adhesion, and poor surface finish. This is the single most overlooked cause of bad prints.

Always dry your filament per the manufacturer's recommendations printed on the spool label before printing, especially if the spool has been open for more than a few days or stored in a humid environment. Read our complete filament drying guide →

About the Temperatures & Speeds Listed Below

The print temperatures and speeds shown on this page are general industry ranges — not a one-size-fits-all prescription. Every printer brand and model has different capabilities. A Bambu Lab X1C can print PLA at 500 mm/s; an Ender 3 with a Bowden extruder performs best at 40–80 mm/s.

Always follow your specific printer manufacturer's recommended settings and the temperature range printed on your filament spool label. Start at the lower end of the range and dial in from there.

Material Properties

Strength6/10

Flexibility5/10

Heat Resistance6/10

Printability2/10

Best For

Chemical-resistant containers
living hinges
food-safe applications
automotive components
laboratory equipment

Avoid For

Open-air printing without an enclosure
Beginners / first prints

Pro Tips

01PP will not stick to PEI, glass, or standard glues — use PP packing tape or Magigoo PP adhesive
02Very high shrinkage; heated enclosure required; print with large brim
03Thin PP features are highly flexible, making support removal difficult without damage

Print Speed by Printer Tier

Print speeds vary dramatically by printer. The speeds listed in product specs (like "500 mm/s") are maximum capabilities — not recommended everyday speeds. Use this table as a general guide and always follow your printer manufacturer's recommended settings.

High-End (Bambu X1C, P2S, H2D)

Print Speed: 150–300 mm/s

High-acceleration direct-drive systems. Follow manufacturer slicer presets.

Mid-Range (Bambu A1/A1 Mini, Prusa MK4, Creality K1)

Print Speed: 60–150 mm/s

Good performance at moderate speeds. Follow slicer presets for best results.

Entry-Level (Ender 3 series, Bowden extruders)

Print Speed: 30–60 mm/s

Start slow and tune up. Follow your printer manufacturer's recommended settings.

Quick Specs

Print Temp230–260°C

Bed Temp80–100°C

Cost / kg$40–$70

EnclosureRequired

DryingRequired

DifficultyExpert

Drying Note: Even filaments marked "Not Required" benefit from drying if the spool has been open or stored in a humid area. When in doubt, dry it.

Buy PP (Polypropylene) Filament

Recommended brands: Hatchbox, eSUN, Polymaker, Bambu

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