Super High TBN Synthetic Calcium Sulfonate refers to a high-performance detergent additive used in engine oils, marine lubricants, and industrial oils. It is specifically designed to deliver strong acid neutralization, detergency, and rust protection—especially in high-sulfur fuel environments like marine and heavy-duty diesel engines.
🔍 Key Terms Explained
- TBN (Total Base Number):
Measures the oil’s ability to neutralize acids. A high TBN (≥300 mg KOH/g) means strong protection against acidic byproducts of combustion. - Synthetic Calcium Sulfonate:
Derived from synthetic alkyl benzenes rather than natural sources, offering better thermal stability, purity, and consistency. It disperses soot and neutralizes acids effectively.
🧪 Typical Properties
| Property | Typical Range |
|---|---|
| TBN (Total Base Number) | 300–400 mg KOH/g |
| Calcium Content | 12–15 wt% |
| Appearance | Clear to hazy brown or amber viscous liquid |
| Sulfonate Type | Synthetic (linear alkyl benzene derived) |
| Viscosity @ 100°C | 80–120 mm²/s (varies by formulation) |
| Base Oil Compatibility | Mineral oils, Group II/III, synthetic (PAO) |
⚙️ Functions and Benefits
| Function | Benefit |
|---|---|
| 🛡️ Acid Neutralization | Protects against corrosion from sulfuric acids |
| 🧽 Detergency & Cleanliness | Keeps pistons, rings, and surfaces clean |
| 🧪 Oxidation Stability | Enhances oil life at high temperatures |
| 🌊 Rust & Corrosion Inhibition | Protects internal metal parts during shutdown |
| 🔧 Load-Carrying Synergy (with EP) | Compatible with ZDDP, borates, and overbased Mg |
🚢 Main Applications
- Marine Cylinder Oils (e.g., 70–100 BN formulations)
- Heavy-Duty Diesel Engine Oils (e.g., CF-4, CI-4, CK-4)
- TBN Boosters for blending packages
- Two-stroke marine engines using high-sulfur fuels
🏭 Common Product Names or Grades
| Product Name | Typical TBN | Supplier |
|---|---|---|
| TBN Booster 400 | 400 | (Various Chinese brands) |
| Calcium Sulfonate SN400 | 300–400 | Shanghai Minglan, Richful |
| Hi-TBN Synthetic Detergent | 350–450 | Lubrizol, Chevron Oronite |
| C400/CS-400 | 400 | Additive factories in China |
⚠️ Considerations When Using
- Must balance with dispersants, ZDDP, and ash content limits (especially in API SN/CK-4 oils).
- Not suitable for low-ash oils (e.g., natural gas engines, DPF oils).
- Overuse may increase ash deposits in combustion chambers.
Table of Contents
What is the Super High TBN Synthetic Calcium Sulfonate？
Super High TBN (Total Base Number) Synthetic Calcium Sulfonate is a type of lubricant additive that is used in engine oils and other industrial lubricants. TBN is a measure of the alkalinity of a lubricant, and it represents the ability of the lubricant to neutralize acidic by-products of combustion and other contaminants in the engine or machinery.
What the key features of Super High TBN Synthetic Calcium Sulfonate？
Synthetic Calcium Sulfonate is a particular class of TBN additives that offers several advantages over traditional additives. Some key features of Super High TBN Synthetic Calcium Sulfonate include:
1.High Total Base Number (TBN)
As the name suggests, it provides a very high TBN, which means it can effectively neutralize acidic components and extend the service life of the lubricant by preventing the buildup of harmful acids.
2.Excellent Detergency
Synthetic Calcium Sulfonate additives have excellent detergency properties, helping to keep the engine or machinery clean by dispersing and suspending deposits and contaminants.
3.Improved Oxidation Resistance
These additives offer enhanced oxidation resistance, protecting the lubricant from degradation at high temperatures and prolonging the lubricant’s useful life.
4.Superior Thermal Stability
Super High TBN Synthetic Calcium Sulfonate additives exhibit excellent thermal stability, which allows them to maintain their performance even under high-temperature operating conditions.
5.Corrosion Protection
These additives also provide corrosion protection to metal surfaces, preventing rust and wear.
What we need to note while using it？
These properties make Super High TBN Synthetic Calcium Sulfonate additives particularly beneficial for applications in high-performance engines, heavy-duty machinery, and industrial equipment that operate under severe conditions and require extended oil change intervals.
It’s important to note that the specific formulation and performance of lubricant additives can vary between manufacturers and product lines. The choice of additives depends on the specific lubricant requirements and the intended application. Always follow the manufacturer’s recommendations and guidelines for lubricant selection and usage.
🧪 Super High TBN Synthetic Calcium Sulfonate is a premium detergent additive delivering powerful acid neutralization and engine cleanliness, ideal for marine and high-sulfur fuel applications.