PP
Polypropylene
12 products from 9 makers. Bambu Lab does not list this material for the H2C; its published process temperatures are within the printer's limits.
- Tensile modulus (XY)
- 1.2–1.4GPa
- as published · test bar not described as printed
- Tensile strength (XY)
- 19MPa
- one product
- Not published:
- tensile strength (Z).
- Notched Charpy impact
- 65kJ/m²
- as published · test bar not described as printed
- HDT at 0.45 MPa
- 59°C
- one product
- Price
- 77CAD/kg
- 2 products · 63–92
PP is polypropylene. Makers sell it for lightweight and chemically exposed parts such as drones and toys, and a maker warns it turns brittle at sub-zero temperatures. Its HDT at 0.45 MPa is 58.5–58.5 °C. On the H2C it prints at 225–230 °C with no heated chamber, but Prusa Research's knowledge base says unfilled polypropylene adheres poorly to the bed and warps.
Partly documented Tensile strength (XY) and HDT at 0.45 MPa rest on 1 product each, price on 2 products, tensile strength (Z) is not published and tensile modulus (XY) and notched Charpy impact are published only on test bars no document describes as printed. Each figure is the median of the products that publish it comparably, and beside it the middle half of them; a value on a test bar no document describes as printed, or with no stated test load, is set apart, except a heat deflection of a plastic that cannot crystallise, which its glass transition sets, unless its document points to a moulded or resin bar. Products with an added filler or additive are shown but kept out of the medians.
On the H2C
Printing in full- Nozzle
- 225–230 °C
- most products that give one
- Bed
- 80 °C
- most products that give one
- Heated chamber
- none needed
- 6 of 12 products
- Drying
- 50–85 °C, 2–3 h
- 4 of 12 products call for it; 2 more give it as optional
- Nozzle type
- standard
- 1 says a standard nozzle is enough; the rest are silent
No product's setting is beyond the H2C's limits: nozzle 350 °C, bed 120 °C, heated chamber 65 °C.
Among the materials
Against PLA, PP is 2.3 times as expensive. Against PETG, PP is 3.0 times as expensive. Among the materials, PP has a high elongation at break (XY) and a low tensile strength (XY), HDT at 0.45 MPa and density: each is in the top or bottom quarter of the materials that publish it. Its price sits in the middle half.
Against its alternatives, PP has the lowest tensile strength
How does it compare with what an engineer would buy instead?
- PP: its products' median and middle half
- an alternative
- lowest to highest
- each material's median (top row)
- set apart: test bar not described as printed, or no stated load
- beyond the scale
Each row is a material, each column a property: the bar is the middle half of a material's products, the tick their median, the hairline their lowest to highest; the ticks above the rows are every material's median.
The figure as a table
| Material | Modulus (XY) (GPa) | Strength (XY) (MPa) | Strength (Z) (MPa) | Notched Charpy (kJ/m²) | HDT 0.45 MPa (°C) | Price (CAD/kg) |
|---|---|---|---|---|---|---|
| PP (this material) | 1.2–1.4 as published (2) | 19 · 1 | — | 65 as published (1) | 59 · 1 | 77 · 2 |
| PP-CF | 6.15 · 3 | 41 · 3 | — | 9 · 2 | 141 · 2 | 147 · 1 |
| PP-GF | 4.42 · 2 | 52.6 · 2 | — | 6.6 · 2 | 144 · 2 | 118 · 1 |
| PLA | 2.58 (2–2.88) · 61 | 45 (39.5–53) · 83 | 30.3 (22.1–34) · 40 | 6 (3.97–7.9) · 14 | 56 (53–58) · 50 | 33 (28–40) · 27 |
| PETG | 1.69 (1.42–1.95) · 24 | 47 (40.3–50.6) · 34 | 30.2 (28–36.5) · 16 | 6 (4.76–8) · 10 | 70 (69–71) · 32 | 26 (25–32) · 11 |
| ABS | 2.2 (2.02–2.25) · 13 | 34.5 (33–35.6) · 18 | 27.3 (24.6–28.3) · 12 | 20 (18–21.5) · 7 | 95 (89–99) · 18 | 40 (31–52) · 9 |
PP publishes no tensile strength (Z). Its tensile modulus (XY) and notched Charpy impact state no orientation, so they are drawn as published.
Where PP sits among the 128 rigid materials on file
Where is it in the landscape: stiffness against strength, heat resistance against price?
- PP: median, middle half as a cross
- an alternative
- another material
HDT at 0.45 MPa against price
°C
Price, CAD/kg, log scale
Grey points are every other rigid material's medians; the alternatives are named.
The figure as a table
| Material | Price | HDT at 0.45 MPa |
|---|---|---|
| PP (this material) | 77 CAD/kg · 2 | 59 °C · 1 |
| PP-CF | 147 CAD/kg · 1 | 141 °C · 2 |
| PP-GF | 118 CAD/kg · 1 | 144 °C · 2 |
| PLA | 33 CAD/kg · 27 | 56 °C · 50 |
| PETG | 26 CAD/kg · 11 | 70 °C · 32 |
| ABS | 40 CAD/kg · 9 | 95 °C · 18 |
Mechanical properties
Printed flat (XY), PP typically reaches a tensile strength of 19 MPa, and breaks at 850 % elongation.
| Product | Tensile strength (XY) | Tensile modulus (XY) | Elongation at break (XY) | Notched Charpy impact | Notched Izod impact | Shore D hardness |
|---|---|---|---|---|---|---|
| iSANMATE PP | 13.9 MPanot described as printed | not published | 460 %not described as printed | not published | not published | not published |
| Spectrum PP | 17 MPanot described as printed | not published | 500 %not described as printed | 65 kJ/m²not described as printed | not published | not published |
| SUNLU PP2.0 | 15 MPa | not published | 900 % | not published | 23 kJ/m² | not published |
| SUNLU PP | 19 MPa | not published | 850 % | not published | 5.3 kJ/m² | not published |
| Fabru Polypropylene (PP) | 28 MPanot described as printed | 1.2 GPanot described as printed | 12 %not described as printed | not published | not published | not published |
| Fillamentum PP 2320 | 23 MPanot described as printed | 1.4 GPanot described as printed | 20 %not described as printed | not published | not published | not published |
| Yousu PP | 23 MPanot described as printed | not published | > 80 %not described as printed | not published | not published | not published |
| Fiberlogy PP | 14 MPanot described as printed | 0.7 GPanot described as printed | > 100 %not described as printed | 30 kJ/m²not described as printed | not published | not published |
| FormFutura Centaur PP | 12 MPanot described as printed | not published | > 600 %not described as printed | not published | not published | 50 Shore D |
| FormFutura Pegasus PP | 12 MPanot described as printed | 0.605 GPanot described as printed | 25 %not described as printed | 3.56 kJ/m²not described as printed | not published | not published |
| Fiberlogy R PP | 21 MPanot described as printed | 1.1 GPanot described as printed | 250 %not described as printed | 30 kJ/m²not described as printed | 20 kJ/m²not described as printed | not published |
Not published for PP: strength across the layers.
Thermal properties
Its products put HDT at 59 °C under 0.45 MPa. As published, Vicat softening is typically 119 °C and melting typically 163 °C.
| Product | HDT at 0.45 MPa | HDT at 1.8 MPa | Glass transition (Tg) |
|---|---|---|---|
| iSANMATE PP | 92 °Cnot described as printed | not published | not published |
| Spectrum PP | 80 °Cnot described as printed | not published | not published |
| SUNLU PP2.0 | 65 °C | not published | not published |
| SUNLU PP | 59 °C | not published | not published |
| Fabru Polypropylene (PP) | 85 °Cnot described as printed | not published | not published |
| Fiberlogy PP | 51 °Cnot described as printed | not published | -31 °C |
| Fiberlogy R PP | 80 °Cnot described as printed | 65 °Cnot described as printed | not published |
Printing on the H2C
PP softens near 59 °C, below the H2C's 65 °C chamber
What does printing it on the H2C take, and how hot can a part get?
- share of the products that accept each temperature
- what most products accept
- the H2C's limit, and beyond it
- a product
- PP: its products' median and middle half
- as published, under each sheet's own test
Printing it on the H2C
In service
°C
One temperature axis for the settings a print needs and the temperatures a part meets. A setting's shade is how many of the products whose sheets give a window accept each degree; the H2C's limit closes its row.
The figure as a table
| Setting or property | Most products, or the median | Products | H2C limit |
|---|---|---|---|
| Nozzle | 225–230 °C | 8 | 350 °C |
| Bed | 80 °C | 8 | 120 °C |
| Heated chamber | — | 0 | 65 °C |
| Drying | 50–85 °C, 2–3 h | 3 | — |
| HDT at 0.45 MPa | 59 °C | 1 | — |
| Vicat softening temperature | 103–135 °C | 3 | — |
| Melting temperature | 137–205 °C | 4 | — |
No PP product gives a heated chamber window. Windows read from the Bambu Lab Filament Guide are not shaded: the guide speaks for every product that reads it.
| Setting | Most PP products |
|---|---|
| Nozzle | 225–230 °C most products that give one |
| Bed | 80 °C most products that give one |
| Heated chamber | none needed 6 of 12 products |
| Drying | 50–85 °C, 2–3 h 4 of 12 products call for it; 2 more give it as optional |
| Nozzle type | standard 1 says a standard nozzle is enough; the rest are silent |
Where a product's own sheet is silent, its setting comes from a sheet it shares or from the Bambu Lab Filament Guide; each product's card says which.
What makers say about printing it
Moisture sensitivity
PP 2320 2 h 80 °C 1 /
Fillamentum PP 2320, maker's product page or guide, p. 2
Printing advice
Requires a PP build plate for optimal enclosed-chamber printing results.
SUNLU PP, data sheet, p. 1
On PP in general
- Unfilled PP has difficult bed adhesion and substantial warping, especially in large prints. Warping / adhesion after Prusa Research, Polypropylene (PP) | Prusa Knowledge Base
More from makers: warping and shrinkage, nozzle wear, adhesion between layers, supports and removal and odour and emissions
Warping and shrinkage
low processing (linear) shrinkage up to 0.3%
Spectrum PP, data sheet, p. 1
Nozzle wear
Ruby or hardened nozzle not necessary
Spectrum PP, data sheet, p. 1
Adhesion between layers
Our material does not require a heated building chamber to be printed and it exhibits enhanced layer bonding, thus reducing the anisotropy of the final part.
Spectrum PP, data sheet, p. 1
Supports and removal
Supported Material PVA
SUNLU PP2.0, data sheet, p. 2
Odour and emissions
Odor odorless
Raise3D P, data sheet, p. 2
Products
12 products from 9 makers; the most from Fiberlogy (2), FormFutura (2) and SUNLU (2).
Uses, limitations and chemicals
What it is sold for
Model aircraft ,Decorative items, toys, accessories, figurines, and lighting fixtures.
SUNLU PP, data sheet, p. 1Pegasus PP combines all the mechanical properties of PP with an extremely lightweight and by that makes it a very suitable material for applications such as automotive, drones, floating applications, wear resistant & durable applications, etc…
FormFutura Pegasus PP, data sheet, p. 1Cultural and creative, Toys, Gifts and Industrial.
iSANMATE PP, data sheet, p. 1- Low-density parts and chemically exposed prototypes; verify exact exposure. after Prusa Research, Polypropylene (PP) | Prusa Knowledge Base
What makers warn about
Please note the poor cold properties, which make PP brittle at sub-zero temperatures.
Fabru Polypropylene (PP), data sheet, p. 1- Fibre filling may reduce warping, but does not establish universal strength or fatigue improvement. after Prusa Research, Polypropylene (PP) | Prusa Knowledge Base
Finish and accuracy
Surface finish semi-matte
Spectrum PP, data sheet, p. 1smooth and matte surface.
Fillamentum PP 2320, data sheet, p. 1
Chemicals and environment
| Exposure | What makers say |
|---|---|
| Organic solvent resistance | Resistant, in both statements |
| Acid resistance | Resistant, in its one statement |
| Alkali resistance | Resistant, in its one statement |
| Oil and grease resistance | Described in words, with no rating, in its one statement |
Makers rarely give the concentration, temperature or duration: treat them as indications, not design data. Each product's statements are on its card.
Resin reference data (for plain PP, where no maker of these products speaks): it resists distilled water. Fillers, pigments and printing change this, so it does not stand for these products.
Density and price
PP's density is typically 900 kg/m³, the middle half 900–903 kg/m³, across 8 products. PP typically costs 77 CAD/kg, across the 2 products with a regular price in the sample; the lowest is Spectrum PP at 63 CAD/kg.
| Product | Price |
|---|---|
| Spectrum PP | 63 CAD/kg |
| Fiberlogy PP | 68 CAD/kg |
| FormFutura Centaur PP | 92 CAD/kg |
Regular prices, never sale prices, from 9 Canadian shops and 10 foreign shops, sampled 10 Sep–20 Oct 2026, not live; shipping and tax are not included.
Other properties, as published
11 more properties are published, each under its own sheet's test conditions, so they are listed, not ranked.
The 11 properties, lowest to highest
| Property | Products | Lowest–highest |
|---|---|---|
| Melt mass-flow rate | 9 | 4.4–19.3 g/10 min |
| Elongation at yield | 3 | 12–30 % |
| Decomposition temperature | 2 | 395 °C |
| Hardness | 2 | 54.5–60 Shore (scale not specified by source) |
| Mould shrinkage | 2 | 1.36–1.5 % |
| Continuous service temperature | 1 | 65 °C |
| Melt volume-flow rate | 1 | 25.7 cm³/10 min |
| Tear strength | 1 | 127 kN/m |
| Tensile strain at strength | 1 | 6 % |
| Tensile stress at 100 % elongation | 1 | 11 MPa |
| Water absorption | 1 | 0.3 % |
Estimated values
No product publishes a tensile modulus (XY) that can be ranked, so the selector estimates it from the products' related values and similar materials. An estimate is a range, never a product's value, and nothing above rests on it.
| Property | Likely | Plausible | Precision | Beside what is published |
|---|---|---|---|---|
| Tensile modulus (XY) | 0.41–1.13 GPa | 0.32–1.47 GPa | a factor of 2.8 between its ends | two products give 1.2–1.4 GPa without a stated orientation, above the likely range |
What likely and plausible mean
Tested against known values, a likely range held the true value 8 times in 10, and a plausible range 19 times in 20. How the estimates are made.
Sources
28 documents from 11 publishers (15 data sheets, 12 makers' product pages and guides and 1 printer document), read 10 Sep–19 Oct 2026. Each value on PP's Products page names its document and page, and links to the original.
Bambu Lab, H2C Filamant Printing Guide (the H2C's printer guide): print settings for 12 products.
Every document (28), by publisher
| Publisher | Documents | Values | Products |
|---|---|---|---|
| SUNLU | 5 | 46 | 2 |
| Fiberlogy | 5 | 29 | 2 |
| Spectrum | 5 | 23 | 1 |
| FormFutura | 4 | 15 | 2 |
| Fillamentum | 2 | 6 | 1 |
| Yousu | 2 | 5 | 1 |
| Fabru | 1 | 8 | 1 |
| iSANMATE | 1 | 8 | 1 |
| Raise3D | 1 | 4 | 1 |
| Prusa Research | 1 | 0 | 0 |
- Bambu Lab, H2C Filamant Printing Guide | Bambu Lab Wiki
- Fabru, Polypropylene (PP)
- Fiberlogy, PP Filament
- Fiberlogy, rPP Filament
- Fiberlogy, TECHNICAL DATA SHEET Fiberlogy PP
- Fiberlogy, TECHNICAL DATA SHEET Fiberlogy R PP
- Fiberlogy, TECHNICAL DATA SHEET Fiberlogy R PP (2025)
- Fillamentum, Drying of filaments before processing on 3D printer
- Fillamentum, PP 2320
- FormFutura, Centaur PP
- FormFutura, Pegasus PP-HGS25 Ultralight
- FormFutura, Technical Data Sheet Centaur PP
- FormFutura, Technical Data Sheet Pegasus PP
- iSANMATE, PP Filament Technical Data Sheet
- Prusa Research, Polypropylene (PP) | Prusa Knowledge Base
- Raise3D, Technical data sheet: P-filament
- Spectrum, 3D Printing Filament Manufacturer PRODUCT PORTFOLIO
- Spectrum, Filament drying - Spectrum Filaments
- Spectrum, Spectrum Filaments Product Portfolio 2025 — Prografen pp28–29
- Spectrum, TECHNICAL DATA SHEET PP
- Spectrum, TECHNICAL DATA SHEET PP
- SUNLU, PP
- SUNLU, SUNLU PP - Engineering Filaments
- SUNLU, SUNLU PP2.0 - New Filaments
- SUNLU, TECHNICAL DATA SHEET ISO PP
- SUNLU, 三绿物性表 ISO PP2.0
- Yousu, Yousu PP 3D FILMAENT Technical Data Sheet
- Yousu, YOUSU PP(polypropylene) 3d printer Filament, 1.75 mm For FDM 3D Printer