Carbon Black N550 (FEF)
CAS Number: 1333-86-4
Carbon Black N550, classified as Fast Extrusion Furnace (FEF), is a semi-reinforcing carbon black prized for its excellent processing characteristics in extrusion applications. It provides good tensile strength and tear resistance while offering smooth extrudate surfaces, low die swell, and high extrusion rates. N550 is widely used in tire inner liners, wire and cable insulation, hoses, and profiles where processability is as important as reinforcement.
Technical Specifications
| fines (%) | ≤4.0 |
| appearance | Black powder or pellets |
| moisture (%) | ≤1.0 |
| tinting strength (%) | 88–98 |
| DBP absorption (mL/100g) | 121±5 |
| iodine absorption (mg/g) | 43±5 |
Applications
- Tire inner liner and inner tube compounds
- Automotive rubber hose extrusion
- Wire and cable rubber insulation
- EPDM roofing membrane compounds
- Extruded rubber seals and profiles
Key Features
- Excellent extrusion characteristics with low die swell
- Smooth extrudate surface for hose and profile applications
- Good balance of semi-reinforcement and processability
- Widely used in EPDM and NR extrusion compounds
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CAS Number
1333-86-4
Category
Rubber / Tire ChemicalsAvailability
In StockSample
Dispatched within 5 days
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