Public engineering report
Sunlu Standard Black PLA High Speed 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
$18.28 USD/kg
Material identity
| MaterialID | MAT0187 |
|---|---|
| Material | Sunlu Standard Black PLA High Speed Black |
| Manufacturer | Sunlu |
| Product line | Standard |
| Base material | PLA |
| Category | Standard |
| Variant / finish | High Speed |
| Reinforcement | — |
| Color | Black |
Governed engineering profile
| Overall | 45/100 |
|---|---|
| Tensile | 28/100 |
| Impact | — |
| Izod | 13/100 |
| Charpy | 27/100 |
| Stiffness | 100/100 |
| Consistency | 69/100 |
| Layer adhesion | 10/100 |
| Thermal | 27/100 |
| Best available axis | stiffness |
Engineering score profile
Engineering radar
Selected material
Material average - PLA
Manufacturer average - Sunlu
Legacy Impact radar: 22.59 % 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
54 °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 | 45/100 | — | — |
| Tensile | 28/100 | 30/100 | 31/100 |
| Impact | — | — | — |
| Izod | 13/100 | 10/100 | 8/100 |
| Charpy | 27/100 | 11/100 | 12/100 |
| Stiffness | 100/100 | 87/100 | 98/100 |
| Consistency | 69/100 | 77/100 | 73/100 |
| Layer adhesion | 10/100 | 31/100 | 17/100 |
| 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 | 4.199 MPa | 2.635 MPa | 62.8% | 10 | 10/10 |
| Tensile flat | 41.359 MPa | 5.283 MPa | 12.8% | 10 | 10/10 |
| Impact upright | 8.224 kJ/m² | 1.045 kJ/m² | 12.7% | 10 | 10/10 |
| Impact flat | 17.517 kJ/m² | 1.573 kJ/m² | 9% | 10 | 10/10 |
| Izod | 10.313 kJ/m² | 3.818 kJ/m² | 37% | 10 | 10/10 |
| Charpy | 21.975 kJ/m² | 2.941 kJ/m² | 13.4% | 10 | 10/10 |
| Stiffness modulus | 3127.326 MPa | — | — | — | — |
| Stiffness deflection | 1.735 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 | 2026-10-11 |
| Charpy | 2026-10-11 |
| Stiffness | Not recorded |
| Thermal | Not recorded |
Engineering interpretation
Summary: Sunlu Standard Black PLA High Speed 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 Layer Adhesion.
Data-driven review: Sunlu Standard Black PLA High Speed 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 58% 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 Layer Adhesion is the main limitation to consider before using it for demanding applications.
Best feature
Stiffness
Main limitation
Layer Adhesion
Dataset position
Better than 58%
70 / 166
Strengths
- Izod/Charpy impact family: 20/100. The two-method impact score is competitive against the material-family context.
- Stiffness: 100/100. Stiffness is a relative advantage in this comparison group.
Limitations
- Tensile: 28/100. Avoid using this as the primary choice for tensile-loaded parts.
- Izod/Charpy impact family: 20/100. Validate impact or shock-loaded components against their application requirements.
- Layer adhesion: 10/100. Z-axis performance should be treated with caution.
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.
- The report should be read as a suitability warning rather than a general-purpose recommendation.
Recommended applications
- Rigid brackets, fixtures and shape-stable prototypes
- Cosmetic parts, concept models or low-load prototypes
- Avoid high tensile load applications
- Avoid high impact components
Metric rankings and percentiles
| Metric | Score | Rank | Percentile |
|---|---|---|---|
| Overall | 45/100 | 70 / 166 | Better than 58% |
| Tensile | 28/100 | 126 / 243 | Better than 49% |
| Impact | — | — | — |
| Izod | 13/100 | 37 / 171 | Better than 79% |
| Charpy | 27/100 | 24 / 170 | Better than 86% |
| Stiffness | 100/100 | 1 / 240 | Better than 100% |
| Consistency | 69/100 | 205 / 244 | Better than 16% |
| Layer adhesion | 10/100 | 218 / 243 | Better than 11% |
| Thermal | 27/100 | 130 / 226 | Better than 43% |
Decision guidance
- Use this material mainly for low-load, visual or experimental parts.
- Review the listed alternatives if the application needs stronger overall performance.
- Do not choose it as a tensile-strength benchmark material.
- 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 | — | ||
| MAT0066 | ProtoPasta HTPLA Cloverleaf Metallic Green PLA Metal Green | ProtoPasta | 56/100 | 29/100 | — | ||
| MAT0118 | Prusa3D Prusament Azure Blue PLA Blue | Prusa3D | 55/100 | 36/100 | — |
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 |
| MAT0066 | ProtoPasta HTPLA Cloverleaf Metallic Green PLA Metal Green | ProtoPasta | 56/100 | 29/100 | — | n/a | n/a |
| MAT0118 | Prusa3D Prusament Azure Blue PLA Blue | Prusa3D | 55/100 | 36/100 | — | n/a | n/a |
| MAT0106 | Add:North Econymy PLA Black | Add:North | 55/100 | 39/100 | — | n/a | n/a |
| MAT0112 | Prusa3D Prusament Galaxy Black PLA Black | Prusa3D | 52/100 | 38/100 | — | n/a | n/a |
| MAT0161 | Winkle Standard Confeti PLA HD Texture Brown | Winkle | 52/100 | 34/100 | — | 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 |
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
Charpy Impact Strength · 2026-10-11
Instrument readings in kJ/m²
Mean 21.975 kJ/m²; Std. Dev 2.941 kJ/m²; CV 13.382%; Samples 10; Confidence 10
No break 0; invalid 0; excluded 0.
Comparative measurements; standard conformity unverified.
Izod Impact Strength · 2026-10-11
Instrument readings in kJ/m²
Mean 10.313 kJ/m²; Std. Dev 3.818 kJ/m²; CV 37.028%; Samples 10; Confidence 10
No break 0; invalid 0; excluded 0.
Comparative measurements; standard conformity unverified.