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NT5186 is a liquid ash free multifunctional additive based on thiadiazole dodecanethiol derivatives, which combines the functions of metal deactivation (passivation), extreme pressure anti-wear, and auxiliary antioxidant. At low addition levels, active sulfur can effectively inhibit the corrosion of copper and copper alloys, while synergistically enhancing with sulfur-containing extreme pressure agents. It is widely used in automotive, industrial lubricants, and metal processing fluid systems, significantly improving equipment protection performance and oil product service life.
NT5886 is an ash free multifunctional liquid additive based on thiadiazole octylthiol derivatives, which integrates efficient metal deactivation (especially copper protection), corrosion inhibition, extreme pressure protection, and auxiliary antioxidant functions. At low addition levels, it exhibits excellent performance, with outstanding broad-spectrum oil solubility, light color and low odor characteristics, and excellent active sulfur corrosion inhibition ability. Its unique components can also effectively inhibit the corrosion effect of hydrogen sulfide, making it an ideal choice for improving product performance and durability in fields such as lubricants, fuels, and metalworking fluids.
NT5986 is a highly efficient, ash free, oil soluble thiadiazole derivative. As a multifunctional liquid additive, it can provide excellent copper corrosion inhibition and metal deactivation functions at extremely low addition levels, while also possessing anti-wear, extreme pressure, and auxiliary antioxidant properties. Compatible with mineral oil and synthetic oil systems, widely used in the fields of automotive, industrial lubrication, and metalworking fluids.
NT3852 is a multifunctional oil soluble liquid SbDSb additive with excellent performance. As a widely used amino acid salt additive, it has outstanding extreme pressure performance, excellent anti-wear performance, and excellent antioxidant performance. This additive has a wide range of applications, suitable for engine oil, compressor oil, gear oil, synthetic lubricants, and various types of lubricating greases, and has good compatibility with various industrial oils, gear oils, and lubricating greases.
Specializing in the R&D, production, and sales of lubricant and grease additives
Changsha Wangcheng Petrochemical Co., Ltd. was founded in 1987, originally as the Changsha Wangcheng Petrochemical Plant. It is a nationally recognized high-tech enterprise dedicated to the research, development, production, and sales of lubricant and grease additives. As a leading specialized additive manufacturer in Central and South China, the company has been honored as a National Science and Technology-based SME, a National Innovative SME, a Hunan Province New Materials Enterprise, and a Key Manufacturing Enterprise Under Hunan Province’s Industry-Finance Integration Initiative. Additionally, it has established long-term partnerships with major industry giants such as China National Petroleum Corporation and Sinopec Group.
The company is located in the Tongguan Circular Economy Industrial Base, Wangcheng Economic Development Zone, Hunan Province. Since successfully introducing its first additive product—sulfurized olefin cottonseed oil (T405, T405A)—in 1987, the company has steadily advanced from technology import to independent R&D, thanks to the ongoing technical support provided by the China Petroleum and Chemical Industry Research Institute.
Establishment Date
Independently developed
Partner Companies
Extreme Pressure Anti-Wear Agent
Antioxidant Extreme Pressure Agent
Extreme-pressure and Anti-wear Composite Additive
Application Areas
Specialized fields
Transportation Sector
Emerging industries
Specialized fields
Transportation Sector
Emerging industries
Industrial manufacturing sector
Lubrication Grease Field
Metalworking field
Electrical Insulation Field
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Business Updates
2025.09.09
2025.09.08
Operating Analysis of Key Enterprises in Automotive Lubricants
2025.09.02
Market Competition Analysis of Anti-Wear Additives for Lubricating Oils
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Business Address
No. 123 Baiyang Road, Wangcheng Economic Development Zone, Changsha City, Hunan Province, China
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