描述
VESTAMID L2141 BK 9.7504 is a black, high-viscosity, heat-stabilized polyamide 12 compound from Evonik Operations GmbH developed for demanding extrusion applications.
Current Evonik-derived product data positions the grade for extrusion of tubing, including fuel lines, and for semi-finished products. Tubes produced from this material are associated with DIN 73 378, Type PA 12-HL, which identifies a non-plasticized PA12 tubing class for demanding technical line systems.
An important distinction of VESTAMID L2141 BK 9.7504 is its stabilization package. Earlier Evonik VESTAMID technical literature describes L2141 black as light stabilized and more highly heat stabilized than L2140, with hydraulic clutch lines and vacuum lines listed as representative applications. This makes the grade especially relevant where a high-viscosity PA12 tube must retain performance during extended thermal exposure.
The high-viscosity polymer base provides useful melt strength for tube and profile extrusion. After leaving the die, the molten polymer must retain its geometry until calibration and cooling are complete. Higher melt strength therefore supports dimensional control, consistent outside diameter and stable wall thickness.
PA12 also offers very low moisture absorption compared with many other polyamides. Published values for VESTAMID L2141 BK 9.7504 are approximately 1.5% water absorption and 0.7% humidity absorption. This helps reduce dimensional and mechanical changes when ambient humidity varies.
The material is characterized by excellent impact behavior, low friction and broad chemical resistance. It is electrically insulating and contains lubricant / processing-aid components that support extrusion and tribological performance.
Current data lists injection molding, pipe/tube extrusion, profile extrusion and other extrusion methods. Its main technical value, however, lies in high-viscosity PA12 extrusion for demanding automotive and industrial line systems.
Explore more grades in our PA12 Polyamide 12 Product Category →.
For manufacturer information, visit the Official Evonik VESTAMID L2141 BK 9.7504 Product Page →.
Key Features of VESTAMID L2141 BK 9.7504
| Feature | Benefit |
|---|---|
| High Viscosity | Provides melt strength for stable tube, pipe and profile extrusion |
| Enhanced Heat Stabilization | Older Evonik literature positions L2141 above L2140 in heat stabilization |
| Light / UV Stabilized | Supports applications exposed to light and outdoor conditions |
| High Impact Strength | Helps tubing withstand vibration, handling and mechanical shock |
| Good Low-Temperature Toughness | Maintains useful notched impact strength at -30°C |
| Low Moisture Absorption | Helps preserve dimensions under changing humidity |
| Low Coefficient of Friction | Useful for tubing, sliding and tribological applications |
| Good Chemical Resistance | Suitable for many fuels, oils, alcohols and industrial media |
| Electrical Insulation | High resistivity and CTI 600 support electrical applications |
| Lubricated Formulation | Supports processing and friction-sensitive applications |
| Black Color | Ready-colored black formulation |
| PA12-HL Tubing Positioning | Suitable for demanding rigid / semi-rigid PA12 line systems |
The stabilization package is what most clearly differentiates VESTAMID L2141 BK 9.7504 from the closely related L2140 family.
Typical Applications for VESTAMID L2141 BK 9.7504
VESTAMID L2141 BK 9.7504 is primarily intended for demanding extrusion applications where high viscosity, heat resistance and chemical resistance are required.
| Application Area | Typical Use |
|---|---|
| Hydraulic Clutch Lines | High-viscosity PA12 tubing exposed to heat and hydraulic environments |
| Vacuum Lines | Rigid / semi-rigid vacuum tubing requiring dimensional stability |
| Fuel Lines | PA12 tubing requiring fuel and hydrocarbon resistance |
| Automotive Tubing | Technical line systems requiring PA12-HL performance |
| Profile Extrusion | Technical profiles requiring high melt strength |
| Semi-Finished Products | Extruded rods, profiles and stock shapes |
| Industrial Tubing | Chemical-resistant tube systems |
| Tribological Components | Parts benefiting from low friction and lubricant modification |
Older Evonik VESTAMID literature specifically identifies hydraulic clutch lines and vacuum lines as application examples for L2141 black. Current product data also places the grade in tubing such as fuel lines and semi-finished products.
Typical Properties of VESTAMID L2141 BK 9.7504
Physical & Rheological Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Density, Dry | 1.01 g/cm³ | ISO 1183 |
| Density, Conditioned | 1.02 g/cm³ | ISO 1183 |
| Water Absorption | 1.5% | Similar to ISO 62 |
| Humidity Absorption | 0.7% | Similar to ISO 62 |
| Melt Volume-Flow Rate (MVR) | 25 cm³/10 min | ISO 1133 |
| MVR Test Condition | 275°C / 5 kg | — |
| Molding Shrinkage – Parallel | 0.7% | ISO 294-4 / 2577 |
| Molding Shrinkage – Normal | 1.3% | ISO 294-4 / 2577 |
The MVR value for VESTAMID L2141 BK 9.7504 is measured at 275°C / 5 kg, so it should not be directly compared with another grade tested at a different temperature or load.
Mechanical Properties
| Property | Typical Value (Dry / Conditioned) | Test Method |
|---|---|---|
| Tensile Modulus | 1,550 / 1,300 MPa | ISO 527 |
| Yield Stress | 46 / 42 MPa | ISO 527 |
| Yield Strain | 4 / 12% | ISO 527 |
| Nominal Strain at Break | >50 / >50% | ISO 527 |
| Charpy Impact Strength, 23°C | No Break / No Break | ISO 179/1eU |
| Charpy Impact Strength, -30°C | No Break / No Break | ISO 179/1eU |
| Charpy Notched Impact, 23°C | 10 / 12 kJ/m² | ISO 179/1eA |
| Charpy Notched Impact, -30°C | 8 / 8 kJ/m² | ISO 179/1eA |
The no-break result in unnotched Charpy testing at both 23°C and -30°C demonstrates the toughness expected from a high-performance PA12 extrusion grade.
Thermal & Flammability Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Melting Temperature | 178°C | ISO 11357-1/-3 |
| HDT @ 1.80 MPa | 50°C | ISO 75-1/-2 |
| HDT @ 0.45 MPa | 110°C | ISO 75-1/-2 |
| Vicat Softening Temperature B | 140°C | ISO 306 |
| CTE – Parallel | 150 × 10⁻⁶/K | ISO 11359-1/-2 |
| Flammability @ 1.5 mm Nominal | HB | IEC 60695-11-10 |
| Tested Thickness | 1.6 mm | — |
These short-term thermal values should be distinguished from the grade’s heat-stabilization package, which is intended to support improved retention of properties during longer thermal exposure.
Electrical Properties
| Property | Typical Value (Dry / Conditioned) | Test Method |
|---|---|---|
| Volume Resistivity | 1 × 10¹⁰ / 5 × 10¹⁰ Ω·m | IEC 62631-3-1 |
| Surface Resistivity | — / 6 × 10¹⁴ Ω | IEC 62631-3-2 |
| Relative Permittivity, 100 Hz | 9.7 / 5.0 | IEC 62631-2-1 |
| Relative Permittivity, 1 MHz | 4.0 / 3.5 | IEC 62631-2-1 |
| Dissipation Factor, 100 Hz | 2100 / 1000 × 10⁻⁴ | IEC 62631-2-1 |
| Dissipation Factor, 1 MHz | 1100 / 500 × 10⁻⁴ | IEC 62631-2-1 |
| Electric Strength | 39 / 35 kV/mm | IEC 60243-1 |
| Comparative Tracking Index (CTI) | 600 / 600 | IEC 60112 |
These values confirm that VESTAMID L2141 BK 9.7504 is an electrically insulating PA12 rather than a conductive or antistatic grade.
Why Choose VESTAMID L2141 BK 9.7504?
The main reason to choose VESTAMID L2141 BK 9.7504 is its combination of high melt viscosity and enhanced heat stabilization.
Many PA12 line applications require a material that not only processes reliably but also retains mechanical integrity during extended exposure to elevated temperatures. This is especially important in automotive compartments where hydraulic clutch lines, vacuum lines and other tubing may operate close to warm engine or transmission components.
Earlier Evonik technical literature explicitly differentiates L2141 from L2140 by stating that L2141 has higher heat stabilization than L2140. This is therefore a more meaningful selection criterion than simply comparing short-term HDT values.
The high-viscosity PA12 base helps maintain extrusion geometry, while low moisture absorption supports dimensional stability after installation.
Chemical resistance is also important. PA12 is broadly resistant to oils, fuels, greases and many solvents, and current L2141 data includes extensive media-resistance testing.
The combination of toughness, low friction and thermal stabilization makes VESTAMID L2141 BK 9.7504 particularly attractive for demanding automotive line systems.
Processing Guidelines for VESTAMID L2141 BK 9.7504
VESTAMID L2141 BK 9.7504 is listed for injection molding, pipe/tube extrusion, profile extrusion and other extrusion processes.
The current product data provides the following standardized ISO test-specimen molding conditions:
| Processing Item | Published Condition |
|---|---|
| Primary Processing | Pipe / Tube Extrusion, Profile Extrusion, Other Extrusion |
| Additional Processing | Injection Molding |
| ISO Test Melt Temperature | 240°C |
| ISO Test Mold Temperature | 60°C |
| ISO Test Injection Velocity | 200 mm/s |
| ISO Test Holding Pressure | 70 MPa |
| Supply Condition | Black pellets in moisture-protective packaging |
The ISO values above are test-specimen production conditions, not a universal extrusion recipe. Final barrel, adapter and die temperatures should be optimized according to the extruder, screw design, output rate, tube diameter, wall thickness and calibration system.
VESTAMID compounds are supplied dry in moisture-proof packaging. Material from intact bags can generally be processed directly. If pellets absorb moisture after prolonged exposure to ambient air, drying should follow Evonik’s general VESTAMID processing recommendations.
The published shelf life is at least two years in original, undamaged packaging when stored in dry rooms at temperatures not exceeding 30°C.
VESTAMID L2141 BK 9.7504 vs. VESTAMID L2140 BK 9.7504
| Feature | VESTAMID L2141 BK 9.7504 | VESTAMID L2140 BK 9.7504 |
|---|---|---|
| Base Polymer | PA12 | PA12 |
| Viscosity | High | High |
| Heat Stabilization | Higher heat stabilization according to Evonik legacy literature | Standard heat-stabilized L2140 package |
| Light Stabilization | Yes | Yes |
| Representative Applications | Hydraulic clutch lines, vacuum lines | Fuel lines, steel-cable sheathing, semi-finished products |
| DIN Tubing Class | PA 12-HL | PA 12-HL |
| Tensile Modulus, Dry | Approx. 1,550 MPa | Approx. 1,550 MPa |
| Main Selection Reason | More demanding long-term thermal exposure | General high-viscosity PA12 extrusion |
Choose VESTAMID L2141 BK 9.7504 when the application needs the L2140-type high-viscosity PA12 performance package but with a stronger heat-stabilization emphasis.
Choose VESTAMID L2140 BK 9.7504 for general high-viscosity fuel-line, cable and semi-finished-product extrusion where the additional L2141 stabilization package is not required.
Related Products
VESTAMID L2140 BK 9.7504 – High-viscosity PA12 for fuel-line, cable-sheathing and extrusion applications.
VESTAMID L2140 NC – Natural-color high-viscosity PA12 for fuel lines and semi-finished products.
VESTAMID LX9008 BK 9.7504 – Impact-modified, highly heat-stabilized PA12 family grade developed for hot diesel fuel-line service.
View More PA12 Polyamide 12 Materials →
Technical Documents for VESTAMID L2141 BK 9.7504
| Document Type | Description |
|---|---|
| TDS | Technical Data Sheet with physical, mechanical, thermal, electrical and processing properties |
| SDS | Safety Data Sheet |
| COA | Batch-specific Certificate of Analysis where available |
| Chemical Resistance Data | Resistance information for fuels, oils, alcohols, hydrocarbons and other media |
| Compliance Documents | Relevant automotive and regulatory documentation subject to availability |
Need technical documents for VESTAMID L2141 BK 9.7504?
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FAQ About VESTAMID L2141 BK 9.7504
Q1: What is VESTAMID L2141 BK 9.7504?
VESTAMID L2141 BK 9.7504 is a black, high-viscosity, heat-stabilized PA12 compound from Evonik for tube, profile and other extrusion applications.
Q2: What makes VESTAMID L2141 BK 9.7504 different from L2140?
Earlier Evonik technical literature states that L2141 is more highly heat stabilized than L2140. Representative applications include hydraulic clutch lines and vacuum lines.
Q3: Is VESTAMID L2141 BK 9.7504 suitable for fuel lines?
Yes. Current Evonik-derived product data lists tubing such as fuel lines among its applications and identifies PA 12-HL tubing according to DIN 73 378.
Q4: What is the density of VESTAMID L2141 BK 9.7504?
The typical density is approximately 1.01 g/cm³ dry and 1.02 g/cm³ conditioned.
Q5: What is the MVR of VESTAMID L2141 BK 9.7504?
The typical MVR is approximately 25 cm³/10 min at 275°C / 5 kg according to ISO 1133.
Q6: What is the tensile modulus of VESTAMID L2141 BK 9.7504?
The typical tensile modulus is approximately 1,550 MPa dry and 1,300 MPa conditioned.
Q7: What is the melting temperature of VESTAMID L2141 BK 9.7504?
The typical melting temperature is approximately 178°C according to ISO 11357.
Q8: How good is the low-temperature impact resistance?
Unnotched specimens are reported as no break at -30°C. The typical notched impact strength at -30°C is approximately 8 kJ/m² in both dry and conditioned states.
Q9: Is VESTAMID L2141 BK 9.7504 electrically insulating?
Yes. The grade is electrically insulating, with typical electric strength of approximately 39 kV/mm dry and 35 kV/mm conditioned, and CTI 600.
Q10: Can you provide VESTAMID L2141 BK 9.7504 TDS, SDS and COA?
Yes. Please request the required technical documents through our Contact Page → or email ruiqingchem@gmail.com.
Request VESTAMID L2141 BK 9.7504 Price & Technical Support
For pricing, availability, technical documents or material-selection support for VESTAMID L2141 BK 9.7504, please provide:
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- Destination country or port
- Hydraulic, vacuum, fuel-line or other tube application
- Tube outside diameter and wall thickness
- Continuous and peak operating temperature
- Fluid or chemical medium
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- Extrusion-line information
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