Polymethacrylate is a highly effective pour point depressant and viscosity modifier used in various industrial lubricants. This additive is primarily designed to improve low-temperature performance and the viscosity index of lubricants, making it an essential component in formulations for hydraulic transmission oils, gear oils, and other industrial fluids.

Key Features and Benefits:

1. Excellent Pour Point Depression:
   Polymethacrylate is specifically formulated to lower the pour point of lubricants, ensuring that the fluid remains mobile and can flow effectively at lower temperatures. This is especially beneficial for applications in colder climates or environments where low-temperature fluidity is crucial for performance.

2. Improved Low-Temperature Performance:
   The additive helps to enhance the low-temperature fluidity of oils and lubricants, improving the start-up performance and reducing the risk of equipment damage that could occur if the oil thickens or solidifies at low temperatures.

3. Viscosity Index Improvement:
   By stabilizing the viscosity of the oil, polymethacrylate ensures that lubricants maintain their optimal performance across a wide range of temperatures. The improved viscosity index (VI) helps maintain proper lubrication and engine protection even when the temperature fluctuates.

4. Light Color and Aesthetic Quality:
   Polymethacrylate is designed with a light color, making it suitable for applications where the visual appearance of the lubricant is important. This property helps ensure that the lubricant remains clean and clear in the final product.

5. Versatility and Compatibility:
   Polymethacrylate is compatible with various base oils, including mineral oils, synthetic oils, and vegetable oils, making it a versatile additive suitable for a wide range of lubricant formulations. This compatibility allows for its use across diverse industrial and automotive applications.

Applications:

• Hydraulic Transmission Oil:
  Polymethacrylate is often used in hydraulic oils to improve low-temperature flow properties and to stabilize the viscosity index, ensuring reliable operation of hydraulic systems in cold weather conditions.

• Gear Oils:
  This additive is commonly added to gear oils to reduce the pour point and improve performance in extreme temperatures. It ensures that gear systems remain well-lubricated even under low-temperature conditions, enhancing their longevity and efficiency.

• Industrial Lubricants:
  It is used in various industrial applications, particularly where lubrication properties need to be enhanced under fluctuating temperature conditions, reducing friction and wear.

Reference Dosage:

The recommended dosage for Polymethacrylate is between 0.1% and 2.0% of the total formulation, depending on the specific performance requirements of the lubricant and the base oil being used.

• Example Dosage: In the case of 150SN Dalian base oil, adding 1% of T602HB (a polymethacrylate product) can provide noticeable pour point depression and improved low-temperature fluidity.