Public engineering report
Prusa3D Prusament Galaxy Black PLA Black
Public-data contract: This static report contains only allowlisted material identity, public links, canonical MSRP and existing Verified Material Summary / governed score outputs. It excludes raw specimen rows and non-public operational data.
Rigid test coverage
Complete; 5/5 score families; Izod/Charpy 2/2 measured, 2/2 scored; Overall eligible; policy engineering-score-v70-1
Engineering axes
7/8
Public MSRP
$30.40 USD/kg
Material identity
| MaterialID | MAT0112 |
|---|---|
| Material | Prusa3D Prusament Galaxy Black PLA Black |
| Manufacturer | Prusa3D |
| Product line | Prusament |
| Base material | PLA |
| Category | Standard |
| Variant / finish | — |
| Reinforcement | — |
| Color | Black |
Governed engineering profile
| Overall | 52/100 |
|---|---|
| Tensile | 38/100 |
| Impact | — |
| Izod | 5/100 |
| Charpy | 6/100 |
| Stiffness | 96/100 |
| Consistency | 74/100 |
| Layer adhesion | 49/100 |
| Thermal | 27/100 |
| Best available axis | stiffness |
Engineering score profile
Engineering radar
Selected material
Material average - PLA
Manufacturer average - Prusa3D
Legacy Impact radar: 20.098 % of legacy rig capacity. This historical visual reference is the mean corrected Flat/Upright result divided by the matching rig capacity; it is not a modern engineering score.
Izod and Charpy use versioned method references and together form one equally weighted impact family. Overall requires all five families and both calibrated methods; incomplete profiles are not ranked. Legacy Impact and thermal are outside Overall. Missing axes have gaps with no marker or filled polygon; measured zero retains a centre marker.
Fixture thermal result
53 °C · score 27/100 · method 3dp-thermal-deflection-fixture-v1
Nearby BlueDOT probe-indicated fixture temperature from a non-standard comparative 3DPIceland method; not ASTM D648, ISO 75, specimen temperature, certified HDT or a manufacturer limit.
Nearby BlueDOT probe-indicated fixture temperature from a non-standard comparative 3DPIceland method; not ASTM D648, ISO 75, specimen temperature, certified HDT or a manufacturer limit.
Material and manufacturer context
| Metric | Selected material | Material average | Manufacturer average |
|---|---|---|---|
| Overall | 52/100 | — | — |
| Tensile | 38/100 | 30/100 | 31/100 |
| Impact | — | — | — |
| Izod | 5/100 | 8/100 | 9/100 |
| Charpy | 6/100 | 10/100 | 12/100 |
| Stiffness | 96/100 | 87/100 | 84/100 |
| Consistency | 74/100 | 75/100 | 76/100 |
| Layer adhesion | 49/100 | 31/100 | 32/100 |
| Thermal | 27/100 | — | — |
Verified measurement results
Existing Verified Material Summary outputs. The public renderer does not read raw specimen rows or recalculate these values.
| Measurement | Average | Std. deviation | CV | Samples | Confidence |
|---|---|---|---|---|---|
| Tensile upright | 19.964 MPa | 7.482 MPa | 37.5% | 10 | 10/10 |
| Tensile flat | 40.959 MPa | 9.294 MPa | 22.7% | 10 | 10/10 |
| Impact upright | 7.111 kJ/m² | 1.068 kJ/m² | 15% | 10 | 10/10 |
| Impact flat | 15.79 kJ/m² | 1.016 kJ/m² | 6.4% | 10 | 10/10 |
| Izod | 3.783 kJ/m² | 0.109 kJ/m² | 2.9% | 10 | 10/10 |
| Charpy | 4.659 kJ/m² | 1.86 kJ/m² | 39.9% | 10 | 10/10 |
| Stiffness modulus | 2883.003 MPa | — | — | — | — |
| Stiffness deflection | 1.882 mm | — | — | — | — |
Measurement provenance
Canonical per-module measured dates from SQLite, shown in unambiguous ISO format. Missing dates are not inferred.
| Module | Measured date |
|---|---|
| Tensile | Not recorded |
| Impact | Not recorded |
| Izod | 2026-09-30 |
| Charpy | 2026-09-30 |
| Stiffness | Not recorded |
| Thermal | Not recorded |
Engineering interpretation
Summary: Prusa3D Prusament Galaxy Black PLA Black has a specialized or limited engineering profile. It is without enough material-family average context and without enough manufacturer average context. Its strongest measured axis is Stiffness, while the weakest axis is Izod.
Data-driven review: Prusa3D Prusament Galaxy Black PLA Black is best understood as a repeatable material for cosmetic, concept and low-load prototype work. Compared with the current verified dataset, it ranks better than 98% overall, is missing enough context for the material-family average, and is missing enough context for the manufacturer average. Its strongest engineering signal is Stiffness, while Izod is the main limitation to consider before using it for demanding applications.
Best feature
Stiffness
Main limitation
Izod
Dataset position
Better than 98%
3 / 80
Strengths
- Layer adhesion: 49/100. Z-axis bonding is better than the material-family context.
- Consistency: 74/100. Repeatability is one of the stronger signals in this material profile.
- Tensile: 38/100. Tensile behavior is competitive against the material-family context.
- Stiffness: 96/100. Stiffness is a relative advantage in this comparison group.
Limitations
- Tensile: 38/100. Avoid using this as the primary choice for tensile-loaded parts.
- Izod/Charpy impact family: 5/100. Validate impact or shock-loaded components against their application requirements.
Engineering trade-offs
- Good repeatability does not compensate for low tensile capability in load-bearing designs.
- Stiffness is useful for shape stability, but impact tolerance is a separate limitation.
Recommended applications
- Rigid brackets, fixtures and shape-stable prototypes
- Repeatable print jobs and production-style batches
- Cosmetic parts, concept models or low-load prototypes
- Avoid high impact components
Metric rankings and percentiles
| Metric | Score | Rank | Percentile |
|---|---|---|---|
| Overall | 52/100 | 3 / 80 | Better than 98% |
| Tensile | 38/100 | 24 / 243 | Better than 91% |
| Impact | — | — | — |
| Izod | 5/100 | 67 / 83 | Better than 20% |
| Charpy | 6/100 | 53 / 82 | Better than 37% |
| Stiffness | 96/100 | 56 / 240 | Better than 77% |
| Consistency | 74/100 | 144 / 243 | Better than 41% |
| Layer adhesion | 49/100 | 21 / 243 | Better than 92% |
| Thermal | 27/100 | 143 / 226 | Better than 37% |
Decision guidance
- Use this material for moderate requirements after checking the weakest axis.
- Review the listed alternatives if the application needs stronger overall performance.
- Validate impact-focused or shock-loaded designs against the measured Izod/Charpy results.
Better alternatives
| MaterialID | Material | Manufacturer | Overall | Tensile | Impact | Izod | Charpy |
|---|---|---|---|---|---|---|---|
| MAT0265 | Coex 3D Standard Scarlet Red PLA Red | Coex 3D | 58/100 | 39/100 | — |
Peer context
Highest-scoring same-base-material peers from the current governed dataset. This context is descriptive and is not recalculated by the public renderer.
| MaterialID | Material | Manufacturer | Overall | Tensile | Impact | Izod | Charpy |
|---|---|---|---|---|---|---|---|
| MAT0265 | Coex 3D Standard Scarlet Red PLA Red | Coex 3D | 58/100 | 39/100 | — | n/a | n/a |
| MAT0118 | Prusa3D Prusament Azure Blue PLA Blue | Prusa3D | 55/100 | 36/100 | — | n/a | n/a |
| MAT0143 | Prusa3D Prusament Corn Pigment PLA Recycled Brown | Prusa3D | 52/100 | 30/100 | — | n/a | n/a |
| MAT0203 | Prusa3D Prusament Prusa Orange PLA Orange | Prusa3D | 52/100 | 42/100 | — | n/a | n/a |
| MAT0264 | Coex 3D Prime Scarlet Red PLA Red | Coex 3D | 52/100 | 34/100 | — | n/a | n/a |
| MAT0205 | Prusa3D Prusament Marble Gray PLA Marble Gray | Prusa3D | 51/100 | 37/100 | — | n/a | n/a |
| MAT0204 | Prusa3D Prusament Jet Black PLA Black | Prusa3D | 51/100 | 40/100 | — | n/a | n/a |
| MAT0249 | Bedrock 3D Standard Black PLA Black | Bedrock 3D | 50/100 | 38/100 | — | n/a | n/a |
Public links
Methodology and limitations
Results are comparative 3DPIceland measurements from home-built test equipment. Thermal is a nearby BlueDOT probe-indicated fixture temperature, not ASTM D648, ISO 75 or specimen temperature. Missing evidence remains n/a. Scores and test results are not recalculated by this publishing layer and do not replace certified manufacturer datasheets or accredited laboratory testing.
Izod and Charpy Impact Strength
Izod Impact Strength · 2026-09-30
Instrument readings in kJ/m²
Mean 3.783 kJ/m²; Std. Dev 0.109 kJ/m²; CV 2.873%; Samples 10; Confidence 10
No break 0; invalid 0; excluded 0.
Comparative measurements; standard conformity unverified.
Charpy Impact Strength · 2026-09-30
Instrument readings in kJ/m²
Mean 4.659 kJ/m²; Std. Dev 1.86 kJ/m²; CV 39.918%; Samples 10; Confidence 10
No break 0; invalid 0; excluded 0.
Comparative measurements; standard conformity unverified.