描述
VESTAMID LX9013 BK 9.7507 is a black, high-viscosity, plasticized and impact-modified polyamide 12 compound from Evonik Operations GmbH developed for flexible tubing that must remain exposed to elevated temperatures for long periods.
Its principal application is hot diesel fuel tubing, especially return lines and fuel lines located close to the engine in common-rail diesel vehicles. Evonik developed LX9013 together with LX9008 specifically for these demanding environments.
The current Evonik fuel-line guide states that LX9008 and LX9013 provide superior resistance to thermal aging compared with conventional polyamides in common-rail diesel tubing service, with application guidance referring to approximately 125°C continuous temperature and 140°C peak temperature.
The main difference between the two grades is flexibility. VESTAMID LX9013 BK 9.7507 is plasticized, so it is significantly softer and more flexible than the plasticizer-free LX9008. Current dry tensile modulus is only about 410 MPa, making LX9013 well suited for routed tubing, tight installation spaces and line systems where flexibility is important.
The material also provides very strong impact behavior. Unnotched Charpy specimens show no break at both 23°C and -30°C, while dry notched impact strength at 23°C is approximately 130 kJ/m². Conditioned material reaches approximately 140 kJ/m².
Low moisture absorption is another PA12 advantage. Published water absorption is approximately 1.5%, while humidity absorption is approximately 0.6%. This helps dimensions and mechanical properties remain comparatively stable when ambient humidity changes.
The current product information identifies VESTAMID LX9013 BK 9.7507 as corresponding to PA12-HIPHL, Grade 1 according to DIN 73378. It also states that the grade meets the requirements of DIN 74324 for black tubing, ISO 7628 and SAE J844.
The grade is supplied as black pellets in moisture-proof packaging and is intended for pipe/tube extrusion, profile extrusion and other extrusion processes.
For more engineering PA12 materials, visit our PA12 Polyamide 12 Product Category →.
For official manufacturer application information, see the Evonik VESTAMID Diesel Lines Guide →.
Key Features of VESTAMID LX9013 BK 9.7507
| Feature | Benefit |
|---|---|
| High Viscosity | Provides melt strength for stable tube extrusion |
| Plasticized PA12-I | Delivers much greater flexibility than unplasticized PA12 |
| Impact Modified | Supports demanding tube systems exposed to vibration and mechanical shock |
| Exceptional Long-Term Heat Resistance | Developed for prolonged elevated-temperature diesel-line service |
| Common-Rail Diesel Capability | Designed for hot diesel fuel and fuel-return tubing |
| Heat Stabilized | Helps retain performance under long-term thermal aging |
| Low-Temperature Impact Strength | Supports cold-weather automotive operation |
| Low Moisture Absorption | Helps reduce humidity-driven dimensional and property changes |
| Fuel Resistance | Suitable for diesel-line environments under appropriate qualification |
| Flexible Tubing Performance | Useful for routed lines and confined engine-compartment installation |
| Standards Coverage | DIN 73378 Grade 1; DIN 74324 black; ISO 7628; SAE J844 |
| Black Color | Ready-colored formulation for automotive technical tubing |
The combination of flexibility and long-term thermal aging resistance is the central reason to select VESTAMID LX9013 BK 9.7507.
Typical Applications for VESTAMID LX9013 BK 9.7507
VESTAMID LX9013 BK 9.7507 is primarily intended for flexible technical tubing exposed to fuel and elevated temperature.
| Application Area | Typical Use |
|---|---|
| Hot Diesel Fuel Lines | Flexible PA12 tubing exposed to elevated diesel temperatures |
| Diesel Fuel Return Lines | Return lines in common-rail injection systems |
| Engine-Compartment Tubing | Flexible tubes installed near hot engine components |
| Common-Rail Diesel Systems | Passenger cars, light commercial vehicles and heavy-duty trucks |
| Automotive Fuel Tubing | Flexible line systems requiring heat aging and fuel resistance |
| Air-Brake / Technical Tubing | Applications requiring standards such as SAE J844 or DIN 74324, subject to design qualification |
| Profile Extrusion | Selected flexible PA12 profiles |
| Other Technical Extrusion | High-viscosity, plasticized PA12 components requiring heat resistance |
Evonik’s current fuel-line information identifies LX9013 as one of the key specialty materials for common-rail diesel tubing systems.
Typical Properties of VESTAMID LX9013 BK 9.7507
Physical Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Density | 1.02 g/cm³ | ISO 1183 |
| Water Absorption | 1.5% | Similar to ISO 62 |
| Humidity Absorption | 0.6% | Similar to ISO 62 |
| Shore D Hardness | 65 | ISO 7619-1 |
| Molding Shrinkage – Parallel | 0.4% | ISO 294-4 / 2577 |
| Molding Shrinkage – Normal | 1.5% | ISO 294-4 / 2577 |
| Delivery Form | Black pellets | Manufacturer information |
| Additive | Plasticizer | Manufacturer information |
The low modulus and Shore D hardness reflect the flexible, plasticized character of VESTAMID LX9013 BK 9.7507.
Mechanical Properties
| Property | Typical Value (Dry / Conditioned) | Test Method |
|---|---|---|
| Tensile Modulus | 410 / 400 MPa | 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 | 130 / 140 kJ/m² | ISO 179/1eA |
| Charpy Notched Impact, -30°C | 7 / 20 kJ/m² | ISO 179/1eA |
| Shore D Hardness | 65 | ISO 7619-1 |
The very high room-temperature notched impact values and no-break unnotched results support the use of VESTAMID LX9013 BK 9.7507 in flexible tubing exposed to vibration and mechanical handling.
Thermal & Flammability Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Melting Temperature | 172°C | ISO 11357-1/-3 |
| Glass Transition Temperature | 0°C | ISO 11357-1/-2 |
| HDT @ 1.80 MPa | 55°C | ISO 75-1/-2 |
| HDT @ 0.45 MPa | 130°C | ISO 75-1/-2 |
| Vicat Softening Temperature B | 130°C | ISO 306 |
| CTE – Parallel | 160 × 10⁻⁶/K | ISO 11359-1/-2 |
| CTE – Normal | 160 × 10⁻⁶/K | ISO 11359-1/-2 |
| Flammability @ 1.5 mm nominal | HB | IEC 60695-11-10 |
| Tested Thickness | 1.6 mm | — |
The standardized HDT values should not be confused with the grade’s long-term diesel-fuel aging capability. Evonik’s common-rail diesel guide separately describes the LX9008/LX9013 system for approximately 125°C continuous and 140°C peak service in the intended tubing context.
Electrical Properties
| Property | Typical Value (Dry / Conditioned) | Test Method |
|---|---|---|
| Relative Permittivity, 100 Hz | 12 / 15.6 | IEC 62631-2-1 |
| Relative Permittivity, 1 MHz | 3.4 / 3.6 | IEC 62631-2-1 |
| Dissipation Factor, 100 Hz | 5000 / 6650 × 10⁻⁴ | IEC 62631-2-1 |
| Dissipation Factor, 1 MHz | 1000 / 1390 × 10⁻⁴ | IEC 62631-2-1 |
| Volume Resistivity | 1 × 10⁸ / 5.1 × 10⁷ Ω·m | IEC 62631-3-1 |
| Electric Strength | 25 / 23 kV/mm | IEC 60243-1 |
| Comparative Tracking Index (CTI) | 600 | IEC 60112 |
The plasticized formulation gives VESTAMID LX9013 BK 9.7507 lower electrical resistivity than many unplasticized PA12 grades, but the material remains an electrically insulating polymer.
Why Choose VESTAMID LX9013 BK 9.7507?
The main reason to choose VESTAMID LX9013 BK 9.7507 is its combination of flexibility and exceptional long-term heat resistance.
Common-rail diesel systems subject fuel-return tubing to much higher thermal loads than older diesel systems. A standard flexible PA12 grade may provide good impact strength but may lose mechanical performance after prolonged exposure to hot diesel fuel.
Evonik developed LX9013 specifically to address this problem. The current diesel-line guide identifies LX9013 and LX9008 as specialty PA12 materials for fuel lines near the engine, including service at approximately 125°C continuously and 140°C peak.
LX9013 adds substantial flexibility through plasticization. Its dry tensile modulus of approximately 410 MPa is far lower than the roughly 1,450 MPa modulus of LX9008, allowing tighter routing and softer tube behavior.
The grade also performs well at low temperature. This is critical because the same fuel line may experience severe engine-bay heat during operation and sub-zero ambient temperatures when the vehicle is parked or started in winter.
Low water absorption further helps stabilize tube dimensions. This can support consistent fitting engagement, sealing and burst-pressure behavior across changing environmental humidity.
For projects where hot diesel resistance, flexibility and low-temperature toughness must all be balanced, VESTAMID LX9013 BK 9.7507 is one of Evonik’s most application-specific PA12 tubing grades.
Processing Guidelines for VESTAMID LX9013 BK 9.7507
VESTAMID LX9013 BK 9.7507 is designed primarily for pipe/tube extrusion, with profile extrusion and other extrusion processes also listed.
Current grade-specific data gives the following standardized specimen-production conditions:
| Processing Item | Published Condition |
|---|---|
| Primary Processing | Pipe / Tube Extrusion |
| Other Processing | Profile Extrusion, Other Extrusion |
| ISO Test Melt Temperature | 220°C |
| ISO Test Mold Temperature | 60°C |
| ISO Test Injection Velocity | 200 mm/s |
| ISO Test Holding Pressure | 70 MPa |
| Packaging | Moisture-proof packaging |
| Shelf Life | At least 2 years in original undamaged packaging at ≤30°C |
These injection-molding conditions are used for standardized property testing and should not be treated as a fixed fuel-line extrusion recipe.
Evonik’s general VESTAMID processing guidance states that drying is required only when the original moisture-proof packaging has been damaged or the material has been exposed to ambient air for an extended period.
For plasticized PA12, the general drying recommendation is:
| Drying Item | Recommended Condition |
|---|---|
| Drying Temperature | 80°C |
| Dehumidified-Air Dryer | 2–4 hours |
| Target Moisture after Drying | <0.1% |
Actual extrusion temperatures, screw speed, line speed, vacuum calibration and cooling conditions should be optimized for tube diameter, wall thickness, line design and required automotive specification.
Because VESTAMID LX9013 BK 9.7507 is used in fuel and safety-relevant tubing, final production should be qualified against the required DIN, ISO, SAE or OEM test program rather than relying only on resin-level data.
VESTAMID LX9013 BK 9.7507 vs. VESTAMID LX9008 BK 9.7504
| Feature | VESTAMID LX9013 BK 9.7507 | VESTAMID LX9008 BK 9.7504 |
|---|---|---|
| Material Family | PA12-I / PA12-HIPHL | PA12-I / PA12-HIHL |
| Plasticizer | Yes | No |
| Viscosity | High | High |
| Tensile Modulus, Dry | Approx. 410 MPa | Approx. 1,450 MPa |
| Shore D Hardness | Approx. 65 | Approx. 73 |
| 23°C Notched Impact, Dry | Approx. 130 kJ/m² | Approx. 40 kJ/m² |
| Melting Temperature | Approx. 172°C | Approx. 176°C |
| Relative Flexibility | Much higher | Lower |
| Primary Application | Flexible hot diesel / return lines | Stiffer hot diesel / return lines |
| Long-Term Heat Resistance | Excellent | Excellent |
| Main Selection Reason | Maximum flexibility with high-heat diesel capability | Higher stiffness without plasticizer |
Both grades were developed for demanding common-rail diesel line systems.
Choose VESTAMID LX9013 BK 9.7507 when the tubing must be especially flexible or routed through tight installation spaces.
Choose VESTAMID LX9008 BK 9.7504 when higher tube stiffness and a plasticizer-free formulation are preferred.
Related Products
VESTAMID LX9008 BK 9.7504 – Plasticizer-free, high-viscosity PA12-I for hot diesel fuel lines.
VESTAMID X7293 BK 9.7507 – Plasticized, impact-modified PA12-I for fuel, vacuum, hydraulic and air-brake tubing.
VESTAMID L2123 BK 9.7507 – Flexible, plasticized PA12-I for air-brake tubing and coils with high cold-impact performance.
View More PA12 Polyamide 12 Materials →
Technical Documents for VESTAMID LX9013 BK 9.7507
| Document Type | Description |
|---|---|
| TDS | Technical Data Sheet with physical, mechanical, thermal and electrical properties |
| SDS | Safety Data Sheet |
| COA | Batch-specific Certificate of Analysis where available |
| Diesel Line Guide | Evonik information for common-rail diesel tubing |
| Processing Guide | General VESTAMID drying and processing recommendations |
| Automotive Compliance | DIN 73378, DIN 74324, ISO 7628, SAE J844 and applicable OEM documentation |
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FAQ About VESTAMID LX9013 BK 9.7507
Q1: What is VESTAMID LX9013 BK 9.7507?
VESTAMID LX9013 BK 9.7507 is a black, high-viscosity, plasticized and impact-modified PA12-I from Evonik developed for flexible tubing exposed to prolonged elevated temperatures, especially hot diesel fuel lines.
Q2: Is VESTAMID LX9013 BK 9.7507 suitable for common-rail diesel systems?
Yes. Evonik specifically developed LX9013 and LX9008 for fuel and return lines located close to engines in common-rail diesel vehicles.
Q3: Is VESTAMID LX9013 BK 9.7507 plasticized?
Yes. Plasticizer is explicitly listed as an additive. This is a major reason why LX9013 is significantly more flexible than LX9008.
Q4: What is the density of VESTAMID LX9013 BK 9.7507?
The typical density is approximately 1.02 g/cm³ according to ISO 1183.
Q5: What is the tensile modulus of VESTAMID LX9013 BK 9.7507?
The typical tensile modulus is approximately 410 MPa dry and 400 MPa conditioned according to ISO 527.
Q6: What is the impact strength of VESTAMID LX9013 BK 9.7507?
Unnotched Charpy specimens show no break at both 23°C and -30°C. Typical dry notched impact strength is approximately 130 kJ/m² at 23°C and 7 kJ/m² at -30°C.
Q7: What is the melting temperature of VESTAMID LX9013 BK 9.7507?
The typical melting temperature is approximately 172°C.
Q8: What standards does VESTAMID LX9013 BK 9.7507 meet?
Current product information states that it corresponds to PA12-HIPHL, Grade 1 according to DIN 73378 and meets requirements according to DIN 74324 for black material, ISO 7628 and SAE J844.
Q9: What temperatures can LX9013 diesel tubing handle?
Evonik’s current diesel-line guide describes the specialty LX9008/LX9013 system for aging resistance at approximately 125°C continuous and 140°C peak in common-rail diesel tubing applications.
Q10: Can you provide VESTAMID LX9013 BK 9.7507 TDS, SDS and COA?
Yes. Please request the required technical documents through our Contact Page → or email ruiqingchem@gmail.com.
Request VESTAMID LX9013 BK 9.7507 Price & Technical Support
For pricing, availability, technical documents or material-selection support for VESTAMID LX9013 BK 9.7507, please provide:
- Required quantity
- Destination country or port
- Diesel fuel-line, return-line or other tubing application
- Tube outside diameter and wall thickness
- Continuous and peak operating temperature
- Diesel / biodiesel composition
- Operating pressure
- Required flexibility or bend radius
- Required DIN, ISO, SAE or OEM standard
- Extrusion-line information
- Low-temperature impact requirement
- TDS, SDS or COA requirements
- Sample requirement, if applicable
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