Polyisobutylene Succinimide

Polyisobutylene Succinimide - Premium Ashless Dispersing Agent

Advanced Dispersing Agent for Engine Protection

It has excellent low-temperature dispersibility and high-temperature stability, has a good solubilizing effect on high-temperature soot, and has certain alkali storage performance. This product can be used with metal cleaning compound agent to solve the low-temperature sludge problem of the engine, and can also reduce the deposition of paint film and carbon deposits on high-temperature parts of the engine. It is mainly suitable for the preparation of medium and high-grade internal combustion engine oils, generally used for diesel engine.

Product Introduction

This Polyisobutylene Succinimide is a high-performance ashless Dispersing Agent engineered to prevent sludge formation and reduce deposits in modern engines. Utilizing advanced succinimide chemistry, it delivers exceptional low-temperature dispersibility and high-temperature stability while meeting stringent environmental standards.

Key Advantages of Our Dispersing Agent

Eliminates low-temperature sludge and minimizes carbon/varnish buildup on critical components – essential for an effective Dispersing Agent.

Chlorine-free composition (<0.5%) ensures compliance with eco-friendly lubricant requirements.

Maintains dispersancy at temperatures up to 250°C, preventing viscosity increase and oil thickening.

Combines seamlessly with metal detergents (e.g., sulfonates) and ZDDP antiwear agents for comprehensive engine protection.

Effective in biodiesel (B20/B30) and ethanol-blended (E10-E85) lubricants.

Key Applications for Dispersing Agent

  • Gasoline/diesel engine oils (API SN/SP, CK-4/FA-4)
  • Marine cylinder oils (MAN B&W and Wärtsilä-compatible)
  • Hybrid vehicle lubricants and e-motor cooling fluids
  • Bio-lubricants (ISO 15380-certified biodegradable oils)
  • Biodiesel (B20/B30) and ethanol-blended (E10-E85) lubricants

This versatile Dispersing Agent provides comprehensive protection across diverse applications.

Reference Dosage

Recommended Dosage: 2.0–4.0% (adjust based on base oil and performance targets).

Characteristics

Parameter

Specification

Test Method

Appearance

Reddish-brown viscous liquid

Visual

Kinematic Viscosity (100°C)

150–250 mm²/s

GB/T 265 / ASTM D445

Total Base Number (TBN)

15–30 mgKOH/g

SH/T 0251 / ASTM D2896

Flash Point (COC)

≥170°C

GB/T 267 / ASTM D92

Nitrogen Content

1.10–1.30% (wt.)

SH/T 0224

Chlorine Content

≤0.5% (wt.)

SH/T 0161

Density (20°C)

890–935 kg/m³

GB/T 1884 / ASTM D4052

Moisture

≤0.10% (wt.)

GB/T 260 / ASTM D95

Packaging & Storage

Packaging:  200L metal drums (net weight: 170–180 kg/drum) or 1,000 kg IBC containers.

Storage: Temperature ≤45°C, avoid direct sunlight.

Shelf life: 24 months in sealed containers.

Handling: Use standard PPE; rinse with detergent if skin contact occurs.

Certifications & Custom Solutions

Certifications: ISO 9001, API compliant.
Custom Solutions: Low-viscosity (100–150 mm²/s) variants for SAE 0W-16 oils.

Why Choose This Dispersing Agent

  • Synergistic Performance: Combines seamlessly with metal detergents and antiwear agents
  • Fuel Compatibility: Effective in biodiesel (B20/B30) and ethanol-blended fuels
  • Solubilizing Effect: Excellent solubilization of high-temperature soot
  • Alkali Storage: Maintains performance in extended drain intervals

Unmatched Performance

“The only ashless Dispersing Agent achieving >55% sludge dispersion in Sequence VG tests while maintaining nitrogen stability at 300°C.”

Technical Support for Dispersing Solutions

Email:jzsrunda@163.com

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