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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. (abbreviated as “Wangcheng Petrochemical”) was founded in 1987, originally known as the Changsha Wangcheng Petrochemical Plant. It is a national-level high-tech enterprise specializing in the R&D, production, and sales of lubricant and grease additives.
Over the past four decades, the company has consistently focused on technological breakthroughs and domestic substitution of critical single additives at the upstream end of the industrial chain, achieving significant advances in core areas such as extreme-pressure and anti-wear additives and oiliness agents. As a result, it has grown into a leading specialized additive manufacturer in the Central-South region. Leveraging its solid technological foundation and robust product capabilities, the company has been recognized as a National Science-and-Technology-Based SME, a National Innovative SME, a Hunan Provincial New Materials Enterprise, and a Key Manufacturing Enterprise for Industry-Finance Cooperation in Hunan Province. It has also established long-term strategic partnerships with major enterprises such as China National Petroleum Corporation and Sinopec.
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
2025.12.26
2025.12.08
Company News
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Business Address
No. 123 Baiyang Road, Wangcheng Economic Development Zone, Changsha City, Hunan Province, China
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