Your Professional Ashless Dispersants Supplier
Since its establishment in 2010, Sinolook has been deeply involved in the energy and chemical sectors and has become one of the leading base oil and petrochemical traders in China and Asia. In the niche field of fine chemicals, we have a deep understanding of the characteristics and application scenarios of each type of product.
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![Polyisobutylene Succinimide]()
Polyisobutylene SuccinimidePolyisobutylene Succinimide (PIBSI) is the foundational ashless dispersant for engine and industrial lubricants — contributing zero ash, zero sulphur, zero phosphorus to the finished oil. PIB tail -
![PIB Bis-Succinimide]()
PIB Bis-SuccinimidePIB Bis-Succinimide is a premium-grade ashless dispersant widely used in high-performance automotive, marine, and industrial lubricants. As engines operate at higher temperatures and under more -
![PIB Poly-Succinimide]()
PIB Poly-SuccinimidePIB Poly-Succinimide is an advanced, high-performance ashless dispersant designed for next-generation engine oils, marine lubricants, and industrial formulations requiring exceptional soot-handling -
![Borated PIBSI]()
Borated PIBSIBorated PIBSI (Borated Polyisobutylene Succinimide) is one of the most advanced ashless dispersants used in premium engine oils, marine lubricants, industrial oils, and high-demand fuel formulations. -
![Borated Polyisobutylene Bis-Succinimide]()
Borated Polyisobutylene Bis-SuccinimideBorated Polyisobutylene Bis-Succinimide is one of the most advanced ashless dispersants used in today’s high-performance lubricants. Engine technologies continue evolving toward higher efficiency and -
![Boron Phosphated Polyisobutylene Bissuccinimide]()
Boron Phosphated Polyisobutylene BissuccinimideBoron phosphated dispersant, phosphorus-modified PIB succinimide, advanced ashless dispersant chemistry, PIB bissuccinimide for engine oils, high-detergency ashless additive, phosphorus boron -
![Low Viscosity Dispersant]()
Low Viscosity DispersantAs modern engines and industrial equipment evolve toward higher efficiency and stricter emission standards, lubricant formulations must be optimized for cleanliness, oxidation control, and long-term
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Reliable Global Logistics
We integrate international logistics resources to build a cross-border supply chain network covering major ports, and can provide flexible logistics solutions such as door-to-door, multimodal transportation, warehousing and distribution according to customer needs to ensure that goods arrive safely and on time to global destinations.
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We are committed to providing global customers with accurate, efficient and reliable integrated solutions for fine chemical procurement and logistics.
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Our experienced sales and logistics teams provide responsive communication, technical assistance, and efficient service support throughout every stage of cooperation.
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We Comprehensive supplier evaluation and quality inspection procedures ensure product consistency, compliance, and reliable performance throughout the supply chain.
What is Ashless Dispersants
Ashless dispersants are chemical additives used in engine lubricants and fuels to prevent the buildup of sludge, varnish, and soot. Called "ashless" because they are made of organic compounds that leave no metallic ash residue when burned, they keep contaminants suspended in the fluid so they can be easily filtered out.
Specification
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Parameter |
Specification |
Test Method |
Note |
|
Appearance |
Clear brown viscous liquid |
Visual |
Typically clearer than dark-brown non-borated PIBSI; the borate ester linkages alter the polarity of the molecule, reducing self-aggregation tendency; warm to 40–60°C for blending |
|
Nitrogen Content |
1.5–2.5 wt% |
ASTM D5291 / D3228 |
Confirmed on COA; N% slightly reduced vs standard PIBSI because some free –NH₂ terminal groups have been converted to B–N bonds during boronation |
|
Boron Content ★ |
0.5–1.5 wt% |
ICP-OES |
Primary boron-specific COA parameter; B% correlates with TBN, AO, and tribological performance; specify target B% at order |
|
TBN (ASTM D2896) ★ |
20–40 mgKOH/g |
ASTM D2896 |
TBN from boron Lewis basicity - no Ca/Mg/Ba; contributes supplemental TBN to finished oil at zero S/A and zero S cost; at 5 wt% treat → +1.0–2.0 mgKOH/g in finished oil |
|
Flash Point (COC) |
≥ 180°C |
ASTM D92 |
Standard combustible liquid; not DG |
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Kinematic Viscosity @100°C |
100–300 cSt |
ASTM D445 |
Lower end of the succinimide series; manageable contribution at 4–8 wt% treat; account for in finished oil viscosity grade calculation |
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Sulphated Ash / S / P |
~0 / ~0 / 0 wt% |
ASTM D874 / D2622 / D4047 |
Boron does not form conventional sulphated ash by ASTM D874; trace B₂O₃ volatile at test temperature; verify in ultra-low-ash ACEA C1/C5 specs if needed |
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Packaging |
180 kg drum · 900–1000 L IBC · Flexitank |
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Store 0–45°C; keep sealed - borated groups are hygroscopic (moisture can hydrolyse borate ester linkages, reducing B% and TBN); 24-month shelf life sealed |
Engine Cleanliness: By preventing the buildup of sludge and varnish, ashless dispersants help maintain the cleanliness of critical engine components such as pistons, rings, and valves. A cleaner engine is more efficient and has a longer service life.
Extended Oil Life: By suspending contaminants and preventing deposit formation, ashless dispersants help extend the life of the oil. This means fewer oil changes are required, reducing maintenance costs for vehicle owners.
Improved Engine Performance: When engines are free of harmful deposits, they can operate at peak efficiency. This leads to better fuel economy, smoother operation, and reduced wear on engine parts.
Environmental Benefits: Ashless dispersants contribute to lower emissions by preventing the formation of particulates that would otherwise be released into the atmosphere. This makes them an important tool in the effort to reduce air pollution from internal combustion engines.
Suspending Contaminants: As engine oil circulates, ashless dispersants attach to contaminants such as soot and sludge. These contaminants are then kept in suspension within the oil, preventing them from settling on critical engine parts.
Preventing Agglomeration: Once contaminants are suspended, the dispersant molecules prevent them from sticking together and forming larger particles. This action ensures that the contaminants remain small and evenly distributed throughout the oil.
Facilitating Removal: By keeping contaminants suspended, ashless dispersants make it easier for the engine’s filtration system to remove them. When the oil is changed, these contaminants are drained away along with the oil, ensuring that the engine stays clean and operates efficiently.
Reducing Emissions: Because ashless dispersants do not contain metal ions, they do not produce ash when burned. This characteristic is particularly important in modern engines, which are designed to meet stringent emissions standards. Ashless dispersants help reduce the formation of harmful exhaust particulates, contributing to cleaner air.
Applications of Ashless Dispersants
Automotive Engine Oils
Modern cars, trucks, and motorcycles all benefit from the inclusion of ashless dispersants in their engine oils. These additives help keep engines running smoothly, reducing the likelihood of deposit-related problems.
Industrial Lubricants
In industrial applications, such as hydraulic systems and compressors, ashless dispersants play a crucial role in maintaining the cleanliness and efficiency of machinery. By preventing sludge and varnish buildup, these additives help reduce downtime and extend equipment life.
Marine and Aviation Oils
Ashless dispersants are also commonly used in marine and aviation lubricants, where cleanliness and reliability are paramount. The prevention of carbon and soot deposits is essential for the safe and efficient operation of engines in these demanding environments.
FAQ
As one of the most professional ashless dispersants manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy high-grade ashless dispersants made in China here from our factory. For price consultation, contact us.
