Ashless EP Additives and Compound Lubricant Packages for Global Formulators

For lubricant blenders and distributors, additive selection is where performance, cost control and regulatory confidence meet. A single package must deliver extreme pressure protection, oxidation resistance, corrosion control and clean handling while fitting the base oils and service conditions of the end user. Shenyang Lubticants Co.,ltd, through its Bossed additive brand, supplies both high-performance single additives and fully formulated compound packages that help formulators reach these goals with fewer development steps.

Single Additives for Precision Formulation

Bossed single additives give formulators the flexibility to build or adjust a lubricant around specific performance targets. The portfolio includes high-temperature antioxidants, oil-soluble metal deactivators, sulfurized isobutylene, phosphorus-nitrogen antiwear agents, ashless extreme pressure additives and nano friction-reducing components. Each product is designed for controlled treat rates and good compatibility with common base stocks and co-additives.

BSD-T3918 is an ashless phosphorus-nitrogen extreme pressure and antiwear additive developed for modern, greener lubricants. It is produced from phosphorus pentoxide, higher fatty alcohols and long-chain fatty amines through a controlled reaction and refining process. The result is a multi-functional additive that combines extreme pressure performance, antiwear protection, corrosion inhibition, rust prevention and friction modification with light color, good oil solubility and good compatibility. In 500N base oil at a 1.0% treat rate, the reported test results include a maximum non-seizure load of 152 kg, a maximum weld load of 200 kg, a four-ball wear scar diameter of 0.34 mm and a copper corrosion rating of 1a at 121 degrees C for 3 hours. BSD-T3918 is suitable for vehicle gear oils, industrial gear oils, hydraulic oils and other industrial equipment oils, and it combines well with sulfurized isobutylene in fourth-generation sulfur-phosphorus gear oil systems.

For sulfur-based EP performance, the range includes T321 and T321H sulfurized isobutylene, produced by normal and high-pressure methods, plus T321A odorless extreme pressure antiwear additive and T3240 highly active sulfurized olefin. These products are used in gear oils, metalworking oils, greases, antiwear hydraulic oils and industrial oils, with typical treat rates from 1.0% to 5.0% depending on the application. The phosphorus side of the portfolio includes BSD-3101 and BSD-3102 phosphorus-nitrogen antiwear additives, BSD-3918 ashless EP antiwear additive, amine salts and alkyl acrylate derivatives of thiophosphate esters, amine salts of alkyl phosphate esters, and nano antiwear options such as BSD-4815 nano lanthanum borate and BSD-3610B nano copper composite.

Oxidation and metal protection are covered by aromatic amine high-temperature antioxidants, thiophenol-type high-efficiency antioxidants, liquid hindered phenols, a liquid multifunctional additive, benzotriazole derivatives and oil-soluble metal deactivators. The heterocyclic derivatives BSD-T553 and BSD-T539 are liquid, ashless, multi-functional additives that combine metal deactivation, antioxidant and antiwear performance. Their nitrogen heterocyclic chemistry is designed to interact with copper surfaces and support a protective film, which is useful in transformer oils, gear oils, antiwear hydraulic oils, synthetic greases, metalworking fluids and turbine oils. In a copper corrosion test at 121 degrees C, a formulation containing 0.025% of T553 or T539 with 3.0% T321H in balance base oil achieved a 1a result.

Compound Additives: Consistent Performance, Simplified Blending

Bossed compound additives are ready-to-use packages for blenders who want predictable performance and shorter formulation cycles. The range covers automotive engine oils, marine oils, railway locomotive oils, gear oils, hydraulic oils and industrial or special oils. Examples include gasoline engine oil packages for SJ through SP and Euro/Chinese VI performance, diesel packages from CF-4 to CK-4, dual-fuel and low-ash natural gas engine oil packages, motorcycle and two-stroke oils, marine system and cylinder oil packages, fourth- and fifth-generation railway locomotive oil packages, and universal, heavy-duty, worm gear and industrial gear oil packages.

The catalogue also includes zinc-containing and ashless antiwear hydraulic oil packages, high-pressure ashless hydraulic packages, and a package designed for light metals without stains. For industrial and special oils, Bossed offers packages for dual-purpose and multi-purpose oils, hydraulic transmission oils, screw air compressor oils, guide rail oils, automatic transmission fluid, continuously variable transmission fluid, turbine and antiwear turbine oils, vacuum pump oil, high-temperature chain oil, heat-transfer oil, quenching oil, deep hole drilling oil, antirust oil, organic antifreeze coolant and all-organic heat-transfer system coolant. Published treat rates vary by performance level; for example, BSD-78662 heavy-duty vehicle gear oil package is listed at 1.6% for GL-4, 3.2% for GL-5 and 3.8% for GL-5+, while the marine cylinder oil package ranges from 8.0% at 25 TBN to 32.0% at 100 TBN.

Performance Evidence and Manufacturing Capability

The technical value of an additive is best judged in finished lubricants. A fourth-generation sulfur-phosphorus heavy-duty vehicle gear oil, BSD-78662, formulated with BSD-T3918 and T321 as core components, passed the Southwest Research Institute L-42, L-37-1, L-60-1 and L-33-1 bench tests in a single attempt. This gives overseas buyers a concrete reference point when evaluating ashless EP chemistry for demanding gear oil applications.

Shenyang Lubticants Co.,ltd was founded in 2002 and operates a 36,000 square meter site in the Shenyang Economic and Technological Development Zone. The company has obtained ISO9001:2015 quality management, ISO14001:2015 environmental management and ISO45001:2018 occupational health and safety system certifications, and has been named a Shenyang Star Enterprise for five consecutive years. Its Bossed brand covers more than ten single-agent chemical products and dozens of compound additives, with annual total output exceeding 20,000 tons. Products are sold across more than 20 provinces and cities in China and exported to more than 20 countries, including the United States, Germany, Japan and Southeast Asian nations. In 2020 the company joined with Qingdao Bossed Lubrication Technology Co., Ltd, a high-tech enterprise focused on nano-lubricant additives, and now operates the Bossed additive brand alongside the Zhinan lubricating oil brand.

Applications and Industry Insight

Bossed additives are used in industrial lubrication across oil fields, steel plants, metallurgy, mines, machinery and transportation. They support formulators working with engine oils, gear oils, hydraulic oils, turbine oils, compressor oils, metalworking fluids, greases, transformer oils, heat-transfer fluids, quench oils, rust-preventive oils and coolant systems. The supplied product photographs show clear, amber and dark liquid samples in labeled bottles, with visible product codes and the Bossed brand mark, reflecting the liquid format that makes many of these additives easy to meter and blend.

The market is moving toward ashless, low-odor and corrosion-inhibiting chemistry. Traditional sulfur-phosphorus additives can bring high ash, strong odor, corrosion risk and environmental pressure, while newer phosphorus-nitrogen and heterocyclic systems can reduce these concerns without sacrificing EP and antiwear performance. Buyers are also looking for additives with good oil solubility and compatibility, because a package that mixes cleanly and works with existing co-additives reduces reformulation time and waste. Bossed single additives and compound packages are positioned to meet that demand, from high-temperature antioxidant and metal deactivator selection to fully formulated gear, engine, marine, railway and industrial oil packages.

Partner With Shenyang Lubticants Co.,ltd

For distributors and lubricant manufacturers seeking a reliable additive source, Shenyang Lubticants Co.,ltd offers product breadth, export experience and technical support from a certified manufacturing base. To discuss formulation needs, request product data or explore a supply partnership, contact the team directly.

Contact: Yao Yili | Phone: 13478174739 | Landline: 4001182755 | Fax: 024-25423872 | Email: levi@lubeoiladditive.com | Address: Xinmintun Town, Shenyang Economic and Technological Development Zone | Postal code: 110029 | Website: www.boss-de.com | Product website: http://www.bossed-lubeoiladditive.com/

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