Overbased Calcium Sulfonate Detergent (High TBN)
Overbased calcium sulfonate is the primary detergent additive in engine oil formulations, providing acid neutralization, deposit prevention, and corrosion protection. The colloidal calcium carbonate core suspended in the sulfonate carrier delivers high TBN (300–400 mg KOH/g) to neutralize acidic combustion and oxidation byproducts throughout the oil drain interval. It is essential in heavy-duty diesel engine oils meeting API CK-4/FA-4 and marine diesel oil formulations.
Технические характеристики
| appearance | Brown to dark brown viscous liquid |
| sulfur content | 1.5–2.5 wt% |
| calcium content | 11.0–13.0 wt% |
| flash point (COC) | >160 °C |
| TBN (total base number) | 300–400 mg KOH/g |
| kinematic viscosity (100°C) | 30–100 mm²/s |
Области применения
- Heavy-duty diesel engine oils (API CK-4, FA-4, CI-4 Plus)
- Marine diesel cylinder oils and trunk piston engine oils (TPEO)
- Passenger car motor oils (PCMO) as detergent/acid neutralizer
- Two-stroke and four-stroke marine engine lubricants
- Industrial and stationary gas engine oils
Особенности продукта
- Very high TBN (300–400) provides reserve alkalinity for long-drain heavy-duty applications
- Colloidal calcium carbonate structure effectively neutralizes strong mineral and organic acids
- Combined detergency and acid neutralization prevents piston deposits and corrosion
- Compatible with all base oil types including Group I through Group IV synthetics
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