Ketjenblack EC-300J is a high-purity, high-structure conductive carbon black manufactured by Nouryon, supplied through Thousands Technology for composite, coating, and polymer compounders who need verified antistatic or electroconductive performance. Ketjenblack EC-300J is valued for its unique morphology and very high surface area, which allow lower dosing than conventional conductive carbon blacks while still achieving target conductivity, making it a practical choice where mechanical and rheological properties must be preserved.
Ketjenblack EC-300J Technical Specifications
The table below lists the manufacturer-published specifications for this grade.
| Property | Typical Value |
|---|---|
| Appearance | Black free-flowing pellets |
| Apparent bulk density | 125-145 kg/m³ |
| BET surface area | Approx. 800 m²/g |
| Iodine absorption | 740-840 mg/g |
| Pore volume (DBP) | 310-345 ml/100g |
| Ash content | ≤ 0.05% |
| Moisture | ≤ 0.5% |
| Volatiles | ≤ 1.0% |
| Fines (<125 micron) | ≤ 7% |
| Grit content | ≤ 30 mg/kg |
| pH | 9.0-10.5 |
These values are taken directly from the manufacturer’s published technical data sheet; buyers requiring a lot-specific certificate of analysis for this conductive carbon black should confirm current batch data at the time of order.
Why Ketjenblack EC-300J Needs a Lower Loading for Conductivity
Due to its unique morphology and very high surface area of approximately 800 m²/g (BET), only about one third the amount of it is needed compared with conventional electroconductive carbon blacks to achieve the same conductivity. This lower loading allows easier processing for polymers that are sensitive to filler addition, which helps compounders minimize the loss of mechanical and rheological properties that often comes with high filler content. When thoroughly dispersed with the polymer, it significantly increases the conductivity of the resulting extrusion, though the exact loading needed to reach a target conductivity will still vary by polymer type.
Applications of this product
the material is suitable for antistatic and electroconductive applications across several industries. Its very low ash content makes it a preferred material for semicon applications in cable shielding, and it is also used to produce conductive coatings and primers, where optimal electroconductive performance can be achieved at low loading levels while minimizing loss in mechanical and rheological properties.
Other Applications
- Batteries
- Packaging for IC parts
- Tubing
- Flooring and carpet backing
- Automotive parts
- Cell phones and other electronics housings
For even more demanding applications, Ketjenblack EC-600JD is available, of which about half the amount is needed to obtain the same conductivity as with Ketjenblack EC-300J; buyers should discuss their specific polymer system and target conductivity with a technical contact before selecting between grades.
Sourcing it Through Thousands Technology
Thousands Technology supplies this conductive carbon black grade as part of its auxiliary agent and additive range for composite, coating, and polymer compounding buyers. Working with manufacturer-documented specifications such as the figures above helps cable shielding producers, coating formulators, and compounders reduce the risk of inconsistent conductivity or unexpected loss of mechanical properties. For broader testing context, buyers can also reference ASTM Committee D20 resources on plastics testing standards at ASTM International.
Frequently Asked Questions About this grade
What makes Ketjenblack EC-300J different from conventional conductive carbon blacks?
Its unique morphology and high surface area (around 800 m²/g BET) mean only about one third the loading is needed to reach the same conductivity as conventional electroconductive blacks.
Is it suitable for cable shielding applications?
Yes, its very low ash content (≤ 0.05%) makes it a preferred material for semicon applications in cable shielding.
What is the typical form of this conductive carbon black?
It is supplied as black free-flowing pellets, with an apparent bulk density of 125-145 kg/m³.
How does it compare to Ketjenblack EC-600JD?
For more demanding applications, Ketjenblack EC-600JD is available and typically needs about half the loading of this product to reach the same conductivity.
Can I request a technical data sheet for Ketjenblack EC-300J?
Yes, buyers can request the current technical data sheet and batch documentation directly through an inquiry to confirm specifications for a specific order.
To request a quotation, technical data sheet, or dosing guidance for Ketjenblack EC-300J, contact Thousands Technology’s sourcing team with your target polymer system and expected order volume.
