PP-GF
Glass-Fiber-Reinforced Polypropylene
3 products from 3 makers. Bambu Lab does not list this material for the H2C; its published process temperatures are within the printer's limits.
- Tensile modulus (XY)
- 4.42GPa
- 2 products · 2.1–6.75
- Tensile strength (XY)
- 52.6MPa
- 2 products · 40.3–65
- Not published:
- tensile strength (Z).
- Notched Charpy impact
- 6.6kJ/m²
- 2 products · 5.3–7.9
- HDT at 0.45 MPa
- 144°C
- 2 products · 139–148
- Price
- 118CAD/kg
- one product
PP-GF is glass-fibre-reinforced polypropylene, a semicrystalline polymer that carries light load well above its glass transition. Its HDT at 0.45 MPa is 144 °C. On the H2C a maker states that a hardened nozzle is necessary, and a maker recommends a brim to improve the adhesion of edges and corners.
Thinly documented Three products, with values from three makers' documents: 3DXTECH's, Prusa Research's and BASF Forward AM's. Read each figure as a few sheets' word.
On the H2C
Printing in full- Nozzle
- 240–260 °C
- most products that give one
- Bed
- 85–105 °C
- most products that give one
- Heated chamber
- none needed
- 2 of 3 products
- Drying
- 60 °C, 4–16 h
- 1 of 3 products calls for it
- Nozzle type
- hardened
- 2 of 3 products' sheets ask for one; 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 PP-CF, PP-GF is 28 % less stiff, 27 % less tough in notched impact and 28 % stronger flat. Against PA12-CF, PP-GF is 60 % less tough in notched impact, 34 % stiffer and 19 % weaker flat. Among the materials, PP-GF has a high tensile modulus (XY) and a low elongation at break (XY) and density: each is in the top or bottom quarter of the materials that publish it. The rest of its key properties sit in the middle half.
Against its alternatives, PP-GF has the lowest notched Charpy impact
How does it compare with what an engineer would buy instead?
- PP-GF: 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-GF (this material) | 4.42 · 2 | 52.6 · 2 | — | 6.6 · 2 | 144 · 2 | 118 · 1 |
| PP | 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 |
| PA12-CF | 3.31 (1.97–8) · 5 | 65 (48.5–79.5) · 8 | 33.1 · 2 | 16.3 (13.7–17.8) · 4 | 131 (111–160) · 7 | 300 · 1 |
| PC-CF | 4.65 (2.98–6.39) · 4 | 70 (64–72) · 5 | — | 12 · 1 | 128 (120–136) · 4 | 152 · 1 |
| PA6-CF | 4.37 (4.09–4.61) · 6 | 70 (62.3–104) · 8 | 48 · 3 | 13.4 · 3 | 193 (185–202) · 6 | 130 (113–160) · 4 |
PP-GF publishes no tensile strength (Z).
Mechanical properties
Printed flat (XY), PP-GF typically reaches a tensile strength of 52.6 MPa at a modulus of 4.42 GPa, and breaks at 1.7 % elongation. In bending, its flexural strength is typically 85 MPa at a flexural modulus of 3.71 GPa.
| As each sheet publishes it | 3DXTECH FIBREX GF PP | Prusa Research Prusament PP | BASF Forward AM Ultrafuse PP |
|---|---|---|---|
| Tensile strength (XY) | 65 MPa | 40.3 MPa | not published |
| Tensile modulus (XY) | 6.75 GPa | 2.1 GPa | not published |
| Elongation at break (XY) | 1.7 % | not published | not published |
| Notched Charpy impact | not published | 7.9 kJ/m² | 5.3 kJ/m² |
| Notched Izod impact | not published | not published | 5.6 kJ/m² |
| Shore D hardness | not published | 68.5 Shore D | 73 Shore D |
Not published for PP-GF: strength across the layers.
Thermal properties
Its products put HDT at 139–148 °C under 0.45 MPa and 117 °C under 1.8 MPa, against a glass transition of -5 °C. Semicrystalline, it carries light load well above its glass transition. As published, Vicat softening is 138–164 °C, from one product and melting 158 °C, from one product.
| As each sheet publishes it | 3DXTECH FIBREX GF PP | Prusa Research Prusament PP | BASF Forward AM Ultrafuse PP |
|---|---|---|---|
| HDT at 0.45 MPa | 139 °C | 138 °Cnot described as printed | 148 °C |
| HDT at 1.8 MPa | not published | 113 °Cnot described as printed | 117 °C |
| Glass transition (Tg) | not published | not published | -5 °C |
Printing on the H2C
PP-GF prints within the H2C's limits and softens near 144 °C, above its 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-GF: 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 | 240–260 °C | 3 | 350 °C |
| Bed | 85–105 °C | 3 | 120 °C |
| Heated chamber | — | 0 | 65 °C |
| Drying | 60 °C, 4–16 h | 1 | — |
| Glass transition (Tg) | -5 °C | 1 | — |
| HDT at 1.8 MPa | 117 °C | 1 | — |
| HDT at 0.45 MPa | 144 °C | 2 | — |
| Vicat softening temperature | 138–164 °C | 1 | — |
| Melting temperature | 158 °C | 1 | — |
No PP-GF 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 | 3DXTECH FIBREX GF PP | Prusa Research Prusament PP | BASF Forward AM Ultrafuse PP |
|---|---|---|---|
| Nozzle | 240–270 °C | 235–255 °C | 240–260 °C |
| Bed | 80–110 °C | 85–105 °C | 20–40 °C |
| Heated chamber | none needed | none needed | no setpoint |
| Drying | not needed | not needed | 60 °C for 4–16 h |
| Nozzle type | hardened | hardened | not stated |
What makers say about printing it
Nozzle wear
A hardened nozzle is necessary.
Prusa Research Prusament PP Glass Fiber by Prusa Polymers, data sheet, p. 1
More from makers: printing advice
Printing advice
The brim is recommended to improve the adhesion of the edges and corners of the object.
Prusa Research Prusament PP Glass Fiber by Prusa Polymers, data sheet, p. 1
Products
Three products from three makers: 3DXTECH, BASF Forward AM and Prusa Research.
Uses, limitations and chemicals
Finish and accuracy
PP can be postprocessed with sandpaper, razor blades, and a variety of other instruments. Wet sanding is recommended (due to airborne particles) but not necessary as the material doesn’t deform under the heat caused by friction.
Prusa Research Prusament PP Glass Fiber by Prusa Polymers, maker's product page or guide, p. 1
Chemicals and environment
Where no maker of these products speaks to an exposure, reference data for plain PP resin is shown. Fillers, pigments and printing change it, so it does not stand for these products.
| PP resin | Verdict | Agents |
|---|---|---|
| Acid resistance | limited | Acids, bases, alcohols, detergents, lower ketones, aldehydes, water-soluble salts (class statement) (resistant), Sulfuric Acid (30%) (resistant), Sulfuric Acid (Concentrated) (not resistant), Hydrochloric Acid (Concentrated) (resistant) and Nitric Acid (40%) (not resistant) |
| Alkali resistance | limited | Sodium Hydroxide Solution (60%) (resistant) and Ammonium Hydroxide (concentrated) (limited) |
| Organic solvent resistance | limited | Acetone (resistant), Ethyl Alcohol (95%) (resistant), Toluene (not resistant) and Benzene (limited) |
| Oil and grease resistance | limited | Mineral Oil, White (not resistant), Kerosene (limited), Transformer Oil (limited) and Olive Oil (resistant) |
| Water solubility | resistant | Distilled Water (resistant) |
Density and price
All two products give a density of 1,120 kg/m³. One product has a sampled price: Prusa Research Prusament PP Glass Fiber by Prusa Polymers at 118 CAD/kg, from 3DJake International's listing in EUR, converted at the Bank of Canada rate of 29 Sep 2026. No Canadian shop in the sample sells it. 3D Printing Canada lists 3DXTECH FIBREX GF PP, out of stock when sampled, with no regular price recorded.
| As each sheet publishes it | 3DXTECH FIBREX GF PP | Prusa Research Prusament PP | BASF Forward AM Ultrafuse PP |
|---|---|---|---|
| Density | 1,120 kg/m³ | 1,120 kg/m³ | not published |
| Price | not published | 118 CAD/kg | not published |
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
8 more properties are published, each under its own sheet's test conditions, so they are listed, not ranked.
The 8 properties, lowest to highest
| Property | Products | Lowest–highest |
|---|---|---|
| Crystallization temperature | 1 | 125 °C |
| Elongation at yield | 1 | 4.1–4.5 % |
| Fibre content | 1 | 30 % |
| Flexural elongation at break | 1 | 1.3–4.6 % |
| Interlayer adhesion strength | 1 | 18 MPa |
| Melt mass-flow rate | 1 | 14.7 g/10 min |
| Melt volume-flow rate | 1 | 11.7 cm³/10 min |
| Water absorption | 1 | 0.11 % |
Sources
6 documents from 4 publishers (3 data sheets, 2 makers' product pages and guides and 1 printer document), read 10 Sep–19 Oct 2026. Each value on PP-GF'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 3 products.
Known gaps
- Moisture and chemicals: No exposure, solubility or moisture record from its own sources. Its base polymer's published behaviour is shown instead, labelled polymer-level.
Every document (6), by publisher
| Publisher | Documents | Values | Products |
|---|---|---|---|
| Prusa Research | 2 | 20 | 1 |
| 3DXTECH | 2 | 8 | 1 |
| BASF Forward AM | 1 | 37 | 1 |
- 3DXTECH, FibreX™ PP+GF30 Polypropylene
- 3DXTECH, Technical Data Sheet: FibreX™ PP+GF30 3D Printing Filament
- Bambu Lab, H2C Filamant Printing Guide | Bambu Lab Wiki
- BASF Forward AM, Ultrafuse PP GF30 Technical Data Sheet
- Prusa Research, Prusament PP Glass Fiber | Prusament
- Prusa Research, Technical datasheet Prusament PP Glass Fiber by Prusa Polymers