|
Model |
EPC6909 |
|
Product Type |
Thermoplastic LSZH Oxygen Barrier Compound |
|
Material Type |
Thermoplastic LSZH / HFFR |
|
Primary Function |
Oxygen barrier / flame-retardant inner layer |
|
Key Positioning |
Good flame retardancy • Low heat release • High char formation |
|
Typical Mechanical Data |
8.0 MPa tensile strength • 60% elongation |
|
Typical Fire / Halogen Data |
OI 45% • 0 ppm halogen |
|
Typical Application |
Flame-retardant cable constructions requiring an oxygen-barrier layer |
Product Overview
EPC6909 is a Thermoplastic LSZH Oxygen Barrier Compound developed for the oxygen-barrier layer of flame-retardant cable constructions. According to the supplied product catalogue, it features good flame retardancy, relatively low heat release and high char formation, helping protect the internal insulation and other cable components.
As a Thermoplastic LSZH Oxygen Barrier Compound, EPC6909 is not positioned as a conventional outer sheath or conductor insulation grade. Its main role is to serve as a functional flame-retardant barrier layer within the cable structure. The finished-cable flame performance must still be verified on the complete cable design.
Why Choose EPC6909?
1. Dedicated Oxygen Barrier Function
Designed for the oxygen-barrier / flame-retardant inner layer rather than general outer sheathing or conductor insulation.
2. High Char-Forming Positioning
The supplied catalogue specifically highlights high char formation, supporting the formation of a protective barrier during fire exposure.
3. Low Heat Release Positioning
EPC6909 is described as having relatively low heat release, an important material characteristic for flame-retardant cable constructions.
4. High Oxygen Index
The supplied technical data lists a typical oxygen index of 45%, distinctly higher than the general-purpose EPC6907 sheathing and EPC6901 insulation grades in the same catalogue.
5. Zero-Halogen Material Profile
Typical halogen content is 0 ppm in the supplied data, supporting LSZH / HFFR cable construction requirements.
6. Thermoplastic Processing
EPC6909 can be processed on conventional PVC/PE extrusion equipment without post-extrusion irradiation.
Typical Applications
- Oxygen-barrier layers in LSZH / HFFR cables
- Flame-retardant inner layers beneath the cable sheath
- Power cable constructions requiring an oxygen-barrier layer
- Control and industrial cable flame-barrier constructions
- Cable designs requiring high char formation and lower heat release
- Other flame-retardant cable structures subject to finished-cable validation
- Customized oxygen-barrier cable construction
Recommended Processing Temperature
|
Zone |
Zone 1 |
Zone 2 |
Zone 3 |
Zone 4 |
Zone 5 |
Neck |
Head |
Mould |
|
Temperature |
100°C |
110°C |
125°C |
135°C |
150°C |
155°C |
160°C |
165°C |
Recommended Extrusion Conditions
- EPC6909 can be processed on conventional PVC/PE cable extrusion equipment.
- Recommended temperature profile: 100°C / 110°C / 125°C / 135°C / 150°C / 155°C / 160°C / 165°C.
- Keep melt temperature below approximately 165°C and do not exceed 175°C according to the supplied processing guidance.
- A low-compression screw and head are recommended, with a compression ratio around 1:1.2.
- Optimize layer thickness, die design, cooling and line speed according to the complete cable construction and flame-retardant target.
Technical Data Sheet
|
Test Item |
Typical Value |
Test Method |
|
Density |
1.63 g/cm³ |
ISO 1183-1 |
|
Melt Index |
4.6 g/10 min |
ISO 1133 (b) |
|
Tensile Strength |
8.0 MPa |
IEC 60811-1-1 |
|
Elongation at Break |
60% |
IEC 60811-1-1 |
|
Oxygen Index |
45% |
ISO 4589-2 |
|
Smoke Density - Flaming |
43 |
ASTM E-662 |
|
Smoke Density - Non-Flaming |
187 |
ASTM E-662 |
|
Toxicity Index |
1 |
NES 713 |
|
Hardness |
Shore A 95 |
ASTM D2240 |
|
Halogen Content |
0 ppm |
IEC 60754 |
|
pH |
6.4 |
IEC 60754 |
|
Conductivity |
3 μS/mm |
IEC 60754 |
Free Sample & Technical Support
For faster material selection and sample evaluation, please provide:
- Cable type and end-use application
- Complete cable construction / cross-section
- Required oxygen-barrier layer position and thickness
- Target flame-retardant or bundle-burning requirement
- Smoke / halogen requirements
- Outer sheath and insulation material combination
- Operating and installation temperature
- Extrusion equipment and line speed
- Trial quantity
- Estimated annual volume
FAQ
Q: What is EPC6909?
A: EPC6909 is a general-purpose Thermoplastic LSZH Oxygen Barrier Compound for use as a functional oxygen-barrier / flame-retardant inner layer in LSZH / HFFR cable constructions.
Q: What is the main function of EPC6909?
A: Its main function is to form an oxygen-barrier / flame-retardant inner layer with good flame retardancy, high char formation and relatively low heat release.
Q: Is EPC6909 an outer sheath compound?
A: This page does not position EPC6909 as a conventional outer sheath grade. Its primary role is the oxygen-barrier layer inside the cable construction.
Q: What is the typical oxygen index of EPC6909?
A: The supplied technical data lists a typical oxygen index of 45%.
Q: What are the typical mechanical properties?
A: Typical tensile strength is 8.0 MPa and elongation at break is 60%.
Q: Is EPC6909 halogen-free?
A: The supplied technical data lists typical halogen content of 0 ppm.
Q: Does a 45% oxygen index guarantee a finished-cable flame rating?
A: No. Finished-cable flame performance depends on the complete cable construction, layer thickness, other materials and the applicable cable test.
Q: Does EPC6909 require irradiation?
A: No. EPC6909 is a thermoplastic extrusion compound.
Q: Can EPC6909 be processed on conventional cable extrusion equipment?
A: Yes. The supplied catalogue states that EPC69xx materials can be processed on conventional PVC/PE extrusion equipment using the recommended processing conditions.
Q: Can I request a sample for cable trials?
A: Yes. Trial evaluation on the customer's complete cable construction is recommended to optimize layer thickness and verify finished-cable flame performance.
Q: Can I request a sample and extrusion support?
A: Yes. Samples and processing guidance can be provided for extrusion trials and finished-cable evaluation.
Hot Tags: thermoplastic lszh oxygen barrier compound, China thermoplastic lszh oxygen barrier compound manufacturers, suppliers, factory, 55 C Flexible Cable Compound, flexible halogen free wire material, HFFR Oxygen Barrier Material, High Char Formation Cable Compound, Low Temperature Flexible LSZH Cable Compound, LSZH Oxygen Barrier Cable Compound
