描述
VESTAMID LC-GF50 BK is a semi-crystalline, heat- and UV-stabilized polyamide 12 compound from Evonik Operations GmbH reinforced with 50% glass fiber. It is designed primarily for injection-molded connectors and fittings and is especially suitable for automotive, mobility, industrial and engineering applications.
Within the current LC-GF portfolio, VESTAMID LC-GF50 BK represents the highest reinforcement level among the commonly promoted LC-GF quick-connector grades. Its 50% glass-fiber content gives the material exceptionally high stiffness and mechanical load capacity while retaining the low-moisture characteristics of a PA12 matrix.
Evonik describes the grade as a semi-crystalline PA12 compound for connectors produced preferably by injection molding. The polymer absorbs only small amounts of water, which helps components maintain excellent dimensional accuracy when ambient humidity changes.
This moisture stability is particularly valuable in precision connector and fitting applications. Sealing surfaces, locking geometries, threaded areas and snap features can be sensitive to dimensional movement. The PA12 base of VESTAMID LC-GF50 BK helps reduce this problem compared with more moisture-sensitive engineering polyamides.
Mechanical performance is the major strength of this grade. Current published data lists a tensile modulus of approximately 12.6 GPa, tensile strength of approximately 156 MPa and yield stress of approximately 157 MPa. These values place VESTAMID LC-GF50 BK well above lower-glass-content LC-GF grades in stiffness.
Despite the high reinforcement level, the grade retains useful impact performance at room and sub-zero temperatures. This matters in automotive applications where components can experience assembly loads, vibration, stone impact and severe winter conditions.
The grade is supplied in black and is laser absorbing, electrically insulating, halogen-free, heat stabilized and UV/light/weathering stabilized. Evonik also identifies the material as lightweight and non-corrosive compared with metallic alternatives.
For more reinforced PA12 grades, visit our PA12 Polyamide 12 Product Category →.
For official manufacturer information about the latest LC-GF series, see the Evonik VESTAMID LC-GF 2026 Product Information →.
Key Features of VESTAMID LC-GF50 BK
| Feature | Benefit |
|---|---|
| 50% Glass Fiber Reinforcement | Provides exceptionally high stiffness and load-bearing capability |
| High Tensile Modulus | Approx. 12.6 GPa for highly rigid molded components |
| High Strength | Supports connectors and fittings under substantial mechanical load |
| Heat Stabilized | Supports demanding automotive and engineering environments |
| UV / Light / Weathering Stabilized | Helps maintain performance where light exposure is relevant |
| Low Moisture Uptake | Helps minimize humidity-related dimensional variation |
| Excellent Dimensional Stability | Supports precision connector and fitting geometry |
| Low-Temperature Impact Performance | Retains useful impact strength at -30°C and -40°C |
| Electrical Insulation | Suitable for selected connector and electrical applications |
| Laser Absorbing | Supports laser-based marking or processing applications |
| Halogen-Free | Current product information identifies the material as halogen-free |
| Black Color | Allows direct molding of finished black parts |
The combination of 50% glass fiber and PA12 moisture stability makes VESTAMID LC-GF50 BK especially suitable for applications where high rigidity and dimensional precision are required together.
Typical Applications for VESTAMID LC-GF50 BK
VESTAMID LC-GF50 BK is primarily intended for high-load injection-molded connectors and fittings.
| Application Area | Typical Use |
|---|---|
| Automotive Quick Connectors | Highly rigid connector bodies requiring dimensional accuracy |
| Fittings | Structural fittings requiring high stiffness and strength |
| Connector Housings | Precision housings exposed to temperature and humidity changes |
| Automotive Fluid-System Components | Reinforced PA12 parts around technical line systems |
| Structural Clips & Brackets | Lightweight molded parts requiring high rigidity |
| Industrial Connectors | Precision connection parts with mechanical and dimensional demands |
| Mobility Components | Reinforced PA12 parts replacing metal in selected applications |
| Precision Engineering Parts | Components requiring high modulus and low moisture sensitivity |
The 50% glass-fiber level is especially useful when lower-reinforcement grades do not provide enough rigidity or load capacity.
Typical Properties of VESTAMID LC-GF50 BK
Physical & Rheological Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Glass Fiber Content | 50% | Grade designation / manufacturer portfolio |
| Density | 1.48 g/cm³ | ISO 1183 |
| Moisture Content | 0.124% | ISO 15512 |
| Shore D Hardness | 84 | ISO 7619-1 |
| Melt Mass-Flow Rate (MFR) | 7.0 g/10 min | ISO 1133 |
| MFR Test Condition | 275°C / 5 kg | — |
| Corrected Viscosity Number | 177 cm³/g | ISO 307 / 1157 / 1628 |
| Spiral Flow | 31.2–39.2 cm | Published flow-spiral data |
The published flow data confirms that VESTAMID LC-GF50 BK can be injection molded despite its very high reinforcement level.
Mechanical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Tensile Modulus | 12,600 MPa | ISO 527 |
| Tensile Strength | 156 MPa | ISO 527 |
| Yield Stress | 157 MPa | ISO 527 |
| Yield Strain | 6% | ISO 527 |
| Tensile Strength at Break | 156 MPa | ISO 527 |
| Strain at Break | 7% | ISO 527 |
| Nominal Strain at Break | 6% | ISO 527 |
| Charpy Impact Strength, 23°C | 102 kJ/m² | ISO 179/1eU |
| Charpy Impact Strength, -30°C | 107 kJ/m² | ISO 179/1eU |
| Charpy Impact Strength, -40°C | 109 kJ/m² | ISO 179/1eU |
| Charpy Notched Impact, 23°C | 28 kJ/m² | ISO 179/1eA |
| Charpy Notched Impact, -30°C | 23 kJ/m² | ISO 179/1eA |
| Charpy Notched Impact, -40°C | 22 kJ/m² | ISO 179/1eA |
These values show that VESTAMID LC-GF50 BK combines very high stiffness with useful impact resistance, including under severe low-temperature conditions.
Thermal Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Melting Temperature | 176°C | ISO 11357-1/-3 |
| Glass Transition Temperature | 41°C | ISO 11357-1/-2 |
| HDT @ 1.80 MPa | 171°C | ISO 75-1/-2 |
| HDT @ 0.46 MPa | 180°C | ISO 75-1/-2 |
| Vicat Softening Temperature, 50 N | 176°C | ISO 306 |
| Vicat Softening Temperature, 10 N | 178°C | ISO 306 |
The approximately 171°C HDT at 1.80 MPa is especially important because it demonstrates that the high glass-fiber loading gives the PA12 matrix strong load-bearing capability at elevated temperature.
Electrical & Functional Properties
| Property | Published Positioning |
|---|---|
| Electrical Behavior | Electrically insulating |
| Optical Characteristic | Laser absorbing |
| Heat Resistance | Heat stabilized |
| Weathering Resistance | UV / light / weathering stabilized |
| Conformity | Automotive |
| Special Characteristics | Halogen-free, semi-crystalline, medium viscosity |
| Features | Lightweight, non-corrosive |
For applications requiring exact dielectric values, the current manufacturer technical documentation should be used during final design qualification.
Why Choose VESTAMID LC-GF50 BK?
The primary reason to choose VESTAMID LC-GF50 BK is its exceptionally high stiffness.
With a tensile modulus of approximately 12.6 GPa, the grade can support applications that require a much more rigid polymer structure than LC-GF23 or LC-GF30. This can help reduce deformation of connector housings and fittings under assembly or service loads.
The second major advantage is dimensional stability. PA12 absorbs relatively little water, so the material is less sensitive to humidity-driven dimensional changes than many conventional nylons. This is particularly valuable in parts containing sealing interfaces or precision locking features.
The grade also retains meaningful elongation and impact resistance despite containing 50% glass fiber. This distinguishes it from highly brittle reinforced materials that may offer stiffness but perform poorly under impact or cold conditions.
Low-temperature impact data is particularly strong. Published unnotched Charpy impact values are approximately 102 kJ/m² at 23°C, 107 kJ/m² at -30°C and 109 kJ/m² at -40°C.
Finally, VESTAMID LC-GF50 BK offers metal-replacement potential. Compared with metal, the polymer can reduce weight, avoid corrosion and enable complex molded geometry in a single injection-molding step.
Processing Guidelines for VESTAMID LC-GF50 BK
VESTAMID LC-GF50 BK is designed primarily for injection molding.
The current published processing information gives the following recommendations:
| Processing Parameter | Recommended Range / Value |
|---|---|
| Pre-Drying Temperature | 80–100°C |
| Pre-Drying Time | 2–4 hours |
| Measured Moisture Content | Approx. 0.124% in published data |
| Melt Temperature | 240–280°C |
| Mold Temperature | 60–100°C |
| Feed Temperature | 40–60°C |
| Typical Zone 1 | 260°C |
| Typical Zone 2 | 260°C |
| Typical Zone 3 | 260°C |
| Typical Nozzle Temperature | 265°C |
| Back Pressure | 0.3–0.8 MPa |
| Typical Holding Pressure | 7 MPa |
| Typical Screw Speed | 127 rpm |
For flow-spiral testing, published conditions include a melt temperature of approximately 280°C, mold temperature of 80°C and injection pressures of approximately 150–200 MPa.
The grade is supplied as cylindrical granules in ready-to-process condition and packed in moisture-tight packaging. If the original packaging remains intact, additional drying may not be necessary. If pellets have absorbed moisture after opening, 80–100°C for 2–4 hours is the published pre-drying range.
Because VESTAMID LC-GF50 BK contains 50% glass fiber, fiber orientation has a strong influence on stiffness, shrinkage and local strength. Gate location, flow direction and weld-line position should therefore be considered carefully during mold design.
The high reinforcement level also increases abrasive wear on screws, barrels, nozzles and gates compared with unfilled PA12. Wear-resistant molding equipment is therefore preferable for sustained production.
VESTAMID LC-GF50 BK vs. VESTAMID LC-GF30 BK
| Feature | VESTAMID LC-GF50 BK | VESTAMID LC-GF30 BK |
|---|---|---|
| Base Polymer | PA12 | PA12 |
| Glass Fiber Content | 50% | 30% |
| Color | Black | Black |
| Primary Process | Injection Molding | Injection Molding |
| Primary Application | High-load quick connectors and fittings | Automotive quick connectors |
| Tensile Modulus | Approx. 12,600 MPa | Approx. 7,150 MPa |
| Yield Stress | Approx. 157 MPa | Approx. 126 MPa |
| Relative Stiffness | Very High | High |
| Relative Flow / Moldability | Lower because of higher reinforcement | Better flow and easier complex filling |
| Main Selection Reason | Maximum stiffness and load capacity | Better balance of stiffness, flow and impact |
Choose VESTAMID LC-GF50 BK when maximum rigidity, dimensional control and mechanical load capacity are the primary design requirements.
Choose VESTAMID LC-GF30 BK when the part needs high stiffness but also benefits from easier flow, lower density and a more balanced molding profile.
Related Products
VESTAMID LC-GF30 BK – Black PA12 with 30% glass fiber for high-stiffness automotive quick connectors.
VESTAMID LC-GF23 BK – Black PA12 with 23% glass fiber for a stronger stiffness-flexibility balance.
VESTAMID LC-GF30 NC – Natural-color PA12 with 30% glass fiber for downstream coloration.
View More PA12 Polyamide 12 Materials →
Technical Documents for VESTAMID LC-GF50 BK
| Document Type | Description |
|---|---|
| TDS | Technical Data Sheet with physical, mechanical, thermal and processing properties |
| SDS | Safety Data Sheet |
| COA | Batch-specific Certificate of Analysis where available |
| LC-GF Product Guide | Evonik product-family information for reinforced PA12 |
| Automotive Compliance | Relevant automotive documentation subject to availability |
Need technical documents for VESTAMID LC-GF50 BK?
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Please state VESTAMID LC-GF50 BK and the required document type when submitting your inquiry.
FAQ About VESTAMID LC-GF50 BK
Q1: What is VESTAMID LC-GF50 BK?
VESTAMID LC-GF50 BK is a black, semi-crystalline PA12 compound from Evonik reinforced with 50% glass fiber and designed primarily for high-stiffness injection-molded connectors and fittings.
Q2: How much glass fiber does VESTAMID LC-GF50 BK contain?
The grade contains 50% glass fiber.
Q3: What is the tensile modulus of VESTAMID LC-GF50 BK?
The typical tensile modulus is approximately 12,600 MPa, or 12.6 GPa, according to ISO 527.
Q4: What is the tensile strength of VESTAMID LC-GF50 BK?
The typical tensile strength is approximately 156 MPa, while the published yield stress is approximately 157 MPa.
Q5: What is the density of VESTAMID LC-GF50 BK?
The typical density is approximately 1.48 g/cm³ according to ISO 1183.
Q6: What is the melt-flow value of VESTAMID LC-GF50 BK?
The published melt mass-flow rate is approximately 7.0 g/10 min at 275°C / 5 kg according to ISO 1133.
Q7: What is the HDT of VESTAMID LC-GF50 BK?
The typical heat-deflection temperature is approximately 171°C at 1.80 MPa and 180°C at 0.46 MPa.
Q8: What injection-molding temperatures are recommended?
Published processing information lists a melt-temperature range of approximately 240–280°C and a mold-temperature range of approximately 60–100°C.
Q9: What is the main difference between VESTAMID LC-GF50 BK and LC-GF30 BK?
The 50% glass-fiber grade provides substantially higher stiffness and strength. Its tensile modulus is approximately 12.6 GPa, compared with approximately 7.15 GPa for LC-GF30 BK. LC-GF30 BK generally offers a more balanced flow and reinforcement profile.
Q10: Can you provide VESTAMID LC-GF50 BK TDS, SDS and COA?
Yes. Please request the required technical documents through our Contact Page → or email ruiqingchem@gmail.com.
Request VESTAMID LC-GF50 BK Price & Technical Support
For pricing, availability, technical documents or material-selection support for VESTAMID LC-GF50 BK, please provide:
- Required quantity
- Destination country or port
- Connector, fitting or molded-part application
- Mechanical load requirement
- Continuous and peak operating temperature
- Critical dimensions or wall thickness
- Required stiffness or strength
- Required automotive standard or approval
- Injection-molding machine information
- TDS, SDS or COA requirements
- Sample requirement, if applicable
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