Description
Viscosity index improvers (VIIs) are essential additives used in lubricants to improve the viscosity-temperature relationship of base oils. These additives help maintain the viscosity of lubricants across a wide range of operating temperatures, ensuring optimal lubrication performance under varying conditions.
This is important because oil viscosity can change significantly with temperature. At high temperatures, oil can become too thin and may not provide adequate lubrication. At low temperatures, oil can become too thick and make it difficult to start the engine. VI improvers help to mitigate these effects by helping the oil to maintain a more constant viscosity regardless of temperature.
They are used in various applications, including engine oils, transmission fluids, hydraulic fluids, and gear oils.
The VIIs are available in both solid and liquid forms, with options like Olefin Copolymer (OCP)-based additives and Polymethacrylate (PMA)-based products.
viscosity index improver lube oil additives manufacturers:Shanghai Minglan Chemical Co., Ltd.
Shanghai Minglan Chemical Co., Ltd. is a viscosity index improver lube oil additives manufacturers and supplier.
Shanghai Minglan Chemical Co., Ltd. offers customized additive packages tailored to meet specific performance and application requirements, allowing customers to optimize their lubricant formulations for various engine types and operating conditions.
With a team of experienced chemists and engineers, Shanghai Minglan Chemical Co., Ltd. offers technical support and expertise to assist customers in selecting the right additives, optimizing formulations, and troubleshooting challenges to achieve desired results.
Viscosity index improvers (VI improvers) are crucial additives in lubricating oils, enhancing the viscosity-temperature relationship and ensuring consistent performance across varying operating conditions. Choosing a reputable supplier that offers high-quality VI improvers, technical expertise, customized solutions, and excellent customer support is essential for optimizing the performance, reliability, and longevity of lubricants in various applications.








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