Global Sulfurized Isobutylene Market Strategic Research Report

Scope of the Report

The global Sulfurized Isobutylene market size is predicted to grow from US$ 229 million in 2025 to US$ 305 million in 2032; it is expected to grow at a CAGR of 4.2% from 2026 to 2032.

Isobutylene sulfide (CAS No. 68511-50-2) is a pale yellow, transparent, oily liquid, primarily used as a highly efficient sulfur-containing extreme pressure anti-wear additive. It is widely applied in gear oils, anti-wear hydraulic fluids, and metalworking fluids, significantly improving the anti-sintering performance and anti-wear capabilities of equipment under high temperature and high load conditions.

The core upstream raw materials are petrochemical derivatives isobutylene and sulfur (or sulfur monochloride). The purity of isobutylene and the choice of monomer directly determine the sulfur content distribution and color depth of the final product, while fluctuations in sulfur prices directly impact production profit margins. The midstream stage involves chemical synthesis, prepared through a pressure sulfurization reaction. The technological barrier lies in controlling the ratio of active to inactive sulfur. Downstream applications are extremely wide, primarily as an extreme pressure agent added to vehicle gear oils, industrial gear oils, metalworking fluids, and greases.

In 2025, global sales of sulfurized isobutylene were approximately 86,000 tons, with an average selling price of approximately US$2,720 per ton. The industry's gross profit margin was around 30%.

As a core component of extreme pressure anti-wear agents in the field of lubricant additives, sulfurized isobutylene, an environmentally friendly extreme pressure agent, is seeing its penetration rate continuously increase in high-performance green lubrication systems due to environmental regulations restricting chlorine/phosphorus-containing additives.

With major global economies limiting and phasing out traditional, highly polluting extreme pressure agents such as chlorinated paraffins, sulfurized isobutylene, as a typical green sulfur source, has gained a broad market for replacing existing stock. Meanwhile, the surge in wind power installations has significantly boosted demand for heavy-duty industrial gear oils, while the rapid penetration of electric vehicles (EVs) has created complex requirements for copper protection and insulation compatibility in electric drive axle lubricants. This has directly driven the technological iteration and sales growth of high-performance, non-reactive sulfurized isobutylene. Furthermore, the improved vertical integration capabilities of China's fine chemical industry chain have resulted in a more stable supply of high-purity isobutylene raw materials, providing a solid foundation for the industry's large-scale expansion.

Key Questions Addressed in this Report

What is the 10-year outlook for the global Sulfurized Isobutylene market?

What factors are driving Sulfurized Isobutylene market growth, globally and by region?

Which technologies are poised for the fastest growth by market and region?

How do Sulfurized Isobutylene market opportunities vary by end market size?

How does Sulfurized Isobutylene break out by Type, by Application?

This report presents a comprehensive overview of the global Sulfurized Isobutylene market, covering market size and forecast, segmentation by product type and application, competitive landscape, leading players and regional and country-level outlook.

Segment by Type

• Sulfur Content 40-46%
• Other

Segment by Chlorine Content

• ≤0.5%
• ≤0.4%

Segment by Process

• One-Step Process
• Two-Step Process

Segment by Application

• Gear Oil
• Metalworking Fluid
• Anti-wear Hydraulic Oil
• Grease
• Others

Who Can Use This Report?

This report is written for decision-makers who need a clear, data-backed view of the global Sulfurized Isobutylene market:

• Manufacturers, suppliers and solution providers benchmarking their position and planning product, capacity and go-to-market strategy
• Distributors, channel partners and end users in Gear Oil, Metalworking Fluid, Anti-wear Hydraulic Oil evaluating demand and sourcing options
• Investors, financial analysts and consultants assessing growth opportunities, competitive dynamics and M&A potential
• Government agencies, industry associations and research institutions tracking industry developments and policy impact