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tbn Booster 400 Calcium Sulfonate Liquid Detergent: Breathing new life into marine cylinder lubricants

🛢️ TBN Booster 400 Calcium Sulfonate Liquid Detergent: Breathing New Life Into Marine Cylinder Lubricants

In the demanding world of marine diesel engines, where high sulfur fuels and extreme combustion temperatures are the norm, marine cylinder oils (MCOs) must do more than lubricate—they must fight acidity, prevent deposits, and ensure engine longevity.

At the heart of this performance lies a critical ingredient:

🧪 TBN Booster 400 – Overbased Calcium Sulfonate Detergent


🔍 What Is It?

TBN Booster 400 is a liquid overbased calcium sulfonate detergent with a high Total Base Number (TBN ~400). It is designed to fortify marine cylinder lubricants by:

  • Increasing alkaline reserve (TBN)
  • Enhancing acid neutralization capacity
  • Improving engine cleanliness and wear protection

It is commonly used by marine oil blenders to upgrade or restore base oil formulations—especially for blending high-TBN oils used in high-sulfur fuel oil (HSFO) environments.


⚙️ Why It Matters

Marine engines running on HSFO or residual fuels produce sulfuric acid, which can corrode cylinder liners. Without adequate TBN, this leads to:

  • Accelerated liner wear
  • Piston ring sticking
  • Reduced time between overhauls

TBN Booster 400 ensures the oil can neutralize acids efficiently and protect engine components even under the harshest conditions.


🧾 Key Features

PropertyDescription
TBN~400 (mg KOH/g)
Base Oil CompatibilityMineral and synthetic
DetergencyHigh (calcium sulfonate-based)
FormLiquid concentrate (easy to blend)
Treat RateTypically 5–20% depending on target TBN

💡 Typical Applications

Marine Cylinder Oils (TBN 70–100)
Trunk Piston Engine Oils
Booster for used oil re-fortification
Custom lubricant blending


🧬 Performance Benefits

  • 🛡️ Enhanced acid neutralization → Protects against liner corrosion
  • ⚙️ Strong detergency → Reduces piston deposit formation
  • 🌊 Thermal and oxidation stability → Long-lasting protection
  • 🔧 Blending flexibility → Helps meet varied OEM specs or IMO fuel requirements

🌐 Use Case: Restoring TBN in VLSFO Era

With the shift to very low sulfur fuel oil (VLSFO), some vessels alternate fuels. Oils may be blended or dosed onboard with TBN boosters like this to adjust for different sulfur loads—ensuring protection without over-lubricating.


TBN Booster 400 doesn’t just elevate TBN—it extends oil life, protects engines, and reduces operating costs. It’s a vital tool for lubricant blenders and marine operators facing diverse fuel strategies and harsh operating conditions.

Breathing new life into marine cylinder lubricants—one molecule at a time.


Would you like a sample spec sheet (TDS/MSDS) format or help formulating a TBN 70/100 oil using this additive?

With the continuous development of industry, lubricating oil additives are increasingly used in various machinery and equipment. Especially in the field of marine cylinder lubrication, the selection and use of additives are of great significance for extending cylinder life and improving engine efficiency. As an efficient lubricant additive, tbn Booster 400 calcium sulfonate liquid detergent is gradually favored in the field of marine cylinder lubrication.

  1. Main features of tbn Booster 400 calcium sulfonate liquid detergent

Excellent cleaning performance: tbn Booster 400 calcium sulfonate liquid detergent can effectively remove carbon deposits, sludge and other sediments inside the engine and keep the inner wall of the cylinder clean.
Good anti-wear performance: This additive can significantly reduce the friction resistance between the cylinder and the piston, improve the wear resistance of the cylinder, and extend the service life of the cylinder.
Stable chemical properties: tbn Booster 400 calcium sulfonate liquid detergent has excellent chemical stability and can maintain stable performance in various harsh environments.
Environmental protection and safety: This additive meets environmental protection requirements and will not cause pollution to the environment and will not harm human health.

tbn Booster 400 Calcium Sulfonate Liquid Detergent: Breathing new life into marine cylinder lubricants
tbn Booster 400 Calcium Sulfonate Liquid Detergent: Breathing new life into marine cylinder lubricants
  1. Application scope of tbn Booster 400 calcium sulfonate liquid detergent

Marine cylinder lubricating oil: Suitable for various types of marine cylinder lubricating oil, which can significantly improve the lubrication performance and anti-wear properties of the cylinder.
Other industrial lubricants: In addition to marine cylinder lubricants, tbn Booster 400 calcium sulfonate liquid detergent can also be used in other industrial lubricants, such as hydraulic oil, gear oil, etc.

  1. Precautions when using tbn Booster 400 calcium sulfonate liquid detergent

When adding this additive, it should be added in the specified proportion to avoid excess or deficiency.
During use, the operating status of the engine should be checked regularly to detect and solve problems in a timely manner.
When replacing lubricating oil, the old lubricating oil should be completely removed before adding new lubricating oil and additives.
During storage, direct sunlight and high temperature environments should be avoided to maintain the stability of the additives.

In short, tbn Booster 400 calcium sulfonate liquid detergent, as an efficient marine cylinder lubricant additive, has excellent detergent performance, anti-wear performance and chemical stability. During the application process, attention should be paid to adding according to the prescribed proportion, regularly checking the engine operating condition, completely removing old lubricating oil when changing lubricating oil, and avoiding direct sunlight and high temperature environments. Only in this way can the role of tbn Booster 400 calcium sulfonate liquid detergent be fully utilized and new vitality be injected into marine cylinder lubrication.

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