描述
VESTAMID LX9001 BK 9.7504 is a black, high-viscosity, heat- and light-stabilized polyamide 12 compound manufactured by Evonik Operations GmbH. It was developed specifically for extrusion coating of steel tubes where adhesion, abrasion resistance, toughness and corrosion protection are important.
The defining feature of VESTAMID LX9001 BK 9.7504 is its adhesion-promoting formulation. Evonik’s published product information states that the grade provides excellent adhesion between the polymer coating and properly applied steel substrates. This strong bond allows the PA12 coating to form a durable protective layer around the metal tube.
The coating system combines the inherent properties of PA12 with adhesion to steel. PA12 offers strong impact resistance, abrasion resistance and broad chemical resistance. When properly applied, VESTAMID LX9001 BK 9.7504 therefore helps increase the corrosion resistance and service durability of coated steel tubing.
Low water absorption is another important benefit. The published water absorption is approximately 1.33%, while humidity absorption is approximately 0.83%. Because PA12 absorbs relatively little moisture, the material maintains good dimensional stability and its properties remain comparatively stable as ambient humidity changes.
The grade is high viscosity, with a published MVR of 13 cm³/10 min at 230°C / 5 kg. This viscosity level supports extrusion-coating applications that require sufficient melt strength to form a continuous, controlled protective layer around a metal substrate.
Mechanical properties also support demanding coating applications. The dry tensile modulus is approximately 1,650 MPa, the dry yield stress is approximately 51 MPa, and unnotched Charpy specimens are reported as no break at both 23°C and -30°C.
Evonik identifies the grade for coating and other extrusion processes, while injection molding is also listed as a processing method for standardized test specimen preparation and selected applications.
For more PA12 grades, visit our PA12 Polyamide 12 Product Category →.
For additional manufacturer information about the VESTAMID portfolio, visit the Official Evonik VESTAMID Page →.
Key Features of VESTAMID LX9001 BK 9.7504
| Feature | Benefit |
|---|---|
| High Viscosity | Supports stable extrusion coating and controlled layer formation |
| Adhesion-Promoted Formulation | Provides excellent adhesion to properly prepared steel surfaces |
| Heat Stabilized | Supports demanding processing and service conditions |
| Light Stabilized | Improves resistance to light exposure and environmental aging |
| High Impact Strength | Helps the coating withstand handling and mechanical shock |
| Abrasion Resistance | Protects coated steel tubes against mechanical wear |
| Good Chemical Resistance | Supports service in demanding industrial and automotive environments |
| Low Water Absorption | Reduces moisture-related dimensional and property changes |
| Dimensional Stability | Helps maintain coating consistency under changing humidity |
| Corrosion Protection | PA12 coating significantly improves protection of properly coated steel tubes |
| Black Color | Supplied as a ready-colored black compound |
| Global Availability | Published availability covers major international regions |
The combination of adhesion promotion and PA12 durability is what separates VESTAMID LX9001 BK 9.7504 from general-purpose high-viscosity PA12 grades.
Typical Applications for VESTAMID LX9001 BK 9.7504
VESTAMID LX9001 BK 9.7504 is designed primarily for coating metal tubing rather than for general injection-molded components.
| Application Area | Typical Use |
|---|---|
| Steel Tube Extrusion Coating | Protective PA12 outer layers on steel tubing |
| Metal Tube Corrosion Protection | Coatings that help isolate steel from corrosive environments |
| Automotive Metal Tubing | Protective coating on suitable steel tube systems |
| Industrial Steel Tubes | Abrasion- and chemical-resistant protective outer layers |
| Construction / Building Tubing | Selected coated metal-tube applications requiring durability |
| Mechanical Tube Protection | PA12 coating where impact and abrasion resistance are required |
Evonik’s product description specifically states that VESTAMID LX9001 BK 9.7504 was developed for the extrusion coating of steel tubes. Other applications should be evaluated based on substrate preparation, coating geometry, service environment and adhesion requirements.
Typical Properties of VESTAMID LX9001 BK 9.7504
Physical & Rheological Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Density | 1.02 g/cm³ | ISO 1183 |
| Water Absorption | 1.33% | Similar to ISO 62 |
| Humidity Absorption | 0.83% | Similar to ISO 62 |
| Melt Volume-Flow Rate (MVR) | 13 cm³/10 min | ISO 1133 |
| MVR Test Condition | 230°C / 5 kg | — |
| Delivery Form | Cylindrical pellets | Manufacturer information |
| Color | Black | Manufacturer information |
The published MVR confirms the high-viscosity positioning of VESTAMID LX9001 BK 9.7504.
Mechanical Properties
| Property | Typical Value (Dry / Conditioned) | Test Method |
|---|---|---|
| Tensile Modulus | 1,650 / 1,300 MPa | ISO 527 |
| Yield Stress | 51 / 44 MPa | ISO 527 |
| Yield Strain | 4 / 13% | 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 | 6 / 5 kJ/m² | ISO 179/1eA |
| Charpy Notched Impact, -30°C | 6 / 3 kJ/m² | ISO 179/1eA |
The unnotched no-break results at both room temperature and -30°C support the use of VESTAMID LX9001 BK 9.7504 where the coating may experience impact, vibration and handling loads.
Thermal Properties
| Property | Typical Value | Test Method |
|---|---|---|
| Melting Temperature | 177°C | ISO 11357-1/-3 |
| HDT @ 1.80 MPa | 45°C | ISO 75-1/-2 |
| HDT @ 0.45 MPa | 125°C | ISO 75-1/-2 |
| Vicat Softening Temperature B | 145°C | ISO 306 |
These values describe standardized short-term thermal behavior. The grade’s heat-stabilized formulation is a separate material characteristic intended to improve performance retention in demanding service conditions.
Electrical & Functional Properties
| Property | Published Positioning |
|---|---|
| Electrical Behavior | Electrically insulating PA12 |
| Adhesion | Good / excellent adhesion to properly prepared steel |
| Chemical Resistance | General chemical resistance |
| Abrasion Resistance | High |
| Impact Behavior | High impact / impact-modified classification |
| Weathering / Light Resistance | Light stabilized |
| Heat Resistance | Heat stabilized |
| Primary Functional Benefit | Corrosion-protective extrusion coating for steel tubes |
The current public Material Data Center page does not publish a full set of numerical dielectric values for this exact grade, so this page avoids substituting electrical values from another PA12 grade.
Why Choose VESTAMID LX9001 BK 9.7504?
The main reason to choose VESTAMID LX9001 BK 9.7504 is that it was designed specifically for steel-tube extrusion coating.
A general PA12 resin may provide good toughness and chemical resistance, but metal coating also depends strongly on adhesion. If the polymer does not bond properly to the substrate, impact, thermal cycling or environmental exposure can lead to delamination.
The adhesion-promoting system in VESTAMID LX9001 BK 9.7504 addresses this requirement. Evonik states that the excellent adhesion between the steel and properly applied material, together with PA12 impact, abrasion and chemical resistance, significantly increases the corrosion resistance of coated steel tubes.
Low moisture absorption further supports stable performance. The coating does not absorb large amounts of water, helping it maintain dimensional stability under changing humidity.
The grade is also mechanically tough. The no-break unnotched Charpy results at both 23°C and -30°C show that the PA12 coating can absorb substantial mechanical energy without brittle fracture.
For automotive and industrial metal tubing where corrosion protection, abrasion resistance and durable adhesion are critical, VESTAMID LX9001 BK 9.7504 is therefore more application-specific than a standard tube-extrusion PA12.
Processing Guidelines for VESTAMID LX9001 BK 9.7504
VESTAMID LX9001 BK 9.7504 is intended primarily for extrusion coating, with other extrusion and injection molding also listed in current material data.
Published standardized test-specimen conditions include:
| Processing Item | Published Condition |
|---|---|
| Primary Processing | Extrusion Coating / Coating |
| Other Processing | Other Extrusion, Injection Molding |
| ISO Test Melt Temperature | 240°C |
| ISO Test Mold Temperature | 60°C |
| ISO Test Injection Velocity | 200 mm/s |
| Supply Condition | Cylindrical pellets in moisture-proof packaging |
| Storage | Dry, original undamaged packaging at ≤30°C |
The standardized injection-molding conditions above are not a universal extrusion-coating recipe.
For steel-tube coating, actual barrel temperatures, adapter temperature, die temperature, line speed, coating thickness and cooling conditions must be optimized for the coating line and tube geometry.
Surface preparation is especially important because the published performance depends on properly applied VESTAMID LX9001 BK 9.7504 and effective adhesion between the PA12 coating and the steel surface. Tube cleanliness, surface condition and line setup can therefore have a major influence on final adhesion and corrosion performance.
The material is supplied in moisture-proof packaging ready for processing. If the packaging remains intact, the pellets are protected from excessive moisture pickup. Open material should be handled in accordance with Evonik’s general VESTAMID processing guidance.
The published shelf life is at least two years when the material is stored in original, undamaged packaging in dry rooms at temperatures not exceeding 30°C.
VESTAMID LX9001 BK 9.7504 vs. VESTAMID L2140 BK 9.7504
| Feature | VESTAMID LX9001 BK 9.7504 | VESTAMID L2140 BK 9.7504 |
|---|---|---|
| Base Polymer | PA12 | PA12 |
| Viscosity | High | High |
| Heat / Light Stabilized | Yes | Yes |
| Adhesion Promoter | Yes – key grade feature | Not the primary positioning |
| Primary Application | Extrusion coating of steel / metal tubing | Fuel lines, tubing, cable and semi-finished extrusion |
| Corrosion-Protection Positioning | Yes | Not the principal product purpose |
| Tensile Modulus, Dry | Approx. 1,650 MPa | Approx. 1,550 MPa |
| Main Selection Reason | Adhesive PA12 coating for metal tubes | General high-viscosity PA12 extrusion |
Choose VESTAMID LX9001 BK 9.7504 when the application is specifically a PA12 protective coating on steel or metal tubing and strong substrate adhesion is required.
Choose VESTAMID L2140 BK 9.7504 when the application is primarily extrusion of the polymer itself into fuel lines, tubing, cable-related products or semi-finished parts rather than coating a metal substrate.
Related Products
VESTAMID L2140 BK 9.7504 – High-viscosity PA12 for fuel-line, tube and general extrusion applications.
VESTAMID L2141 BK 9.7504 – High-viscosity PA12 with stronger heat-stabilization emphasis for demanding tubing.
VESTAMID LX9008 BK 9.7504 – Highly heat-stabilized PA12 family grade associated with hot diesel fuel-line applications.
View More PA12 Polyamide 12 Materials →
Technical Documents for VESTAMID LX9001 BK 9.7504
| Document Type | Description |
|---|---|
| TDS | Technical Data Sheet with physical, mechanical, thermal and processing data |
| SDS | Safety Data Sheet |
| COA | Batch-specific Certificate of Analysis where available |
| Processing Guide | General VESTAMID processing recommendations |
| Chemical Resistance Data | PA12 resistance information for relevant service media |
| Application Support | Guidance for extrusion coating and substrate-specific evaluation |
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FAQ About VESTAMID LX9001 BK 9.7504
Q1: What is VESTAMID LX9001 BK 9.7504?
VESTAMID LX9001 BK 9.7504 is a black, high-viscosity, heat- and light-stabilized PA12 compound from Evonik developed especially for extrusion coating of steel tubes.
Q2: What is the main application of VESTAMID LX9001 BK 9.7504?
Its primary application is extrusion coating of steel or metal tubing to provide a tough, abrasion-resistant and corrosion-protective PA12 outer layer.
Q3: Does VESTAMID LX9001 BK 9.7504 contain an adhesion promoter?
Yes. Historical Evonik product literature identifies the grade as PA12 with an adhesion promoter, and current material information emphasizes its excellent adhesion to properly applied steel substrates.
Q4: What is the density of VESTAMID LX9001 BK 9.7504?
The typical density is approximately 1.02 g/cm³ according to ISO 1183.
Q5: What is the MVR of VESTAMID LX9001 BK 9.7504?
The published MVR is approximately 13 cm³/10 min at 230°C / 5 kg according to ISO 1133.
Q6: What is the tensile modulus of VESTAMID LX9001 BK 9.7504?
The typical tensile modulus is approximately 1,650 MPa dry and 1,300 MPa conditioned.
Q7: What is the melting temperature of VESTAMID LX9001 BK 9.7504?
The typical melting temperature is approximately 177°C.
Q8: How does VESTAMID LX9001 BK 9.7504 improve corrosion protection?
When properly applied to steel, the strongly adhering PA12 coating creates a durable protective layer. Its impact, abrasion and chemical resistance help protect the underlying metal from environmental damage and corrosion.
Q9: Is VESTAMID LX9001 BK 9.7504 suitable for ordinary PA12 tubing extrusion?
The grade can be processed by extrusion, but its main commercial purpose is extrusion coating of steel tubing. For ordinary polymer tubing, grades such as VESTAMID L2140 may be more directly targeted.
Q10: Can you provide VESTAMID LX9001 BK 9.7504 TDS, SDS and COA?
Yes. Please request the required technical documents through our Contact Page → or email ruiqingchem@gmail.com.
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For pricing, availability, technical documents or material-selection support for VESTAMID LX9001 BK 9.7504, please provide:
- Required quantity
- Destination country or port
- Steel-tube or metal-tube application
- Tube outside diameter
- Required coating thickness
- Substrate material and surface condition
- Service environment
- Chemical, oil or fuel exposure
- Operating temperature
- Extrusion-coating line information
- Adhesion or corrosion-test requirement
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