Polymer Polyether (PAG), also known as PAG Viscosifier, is a copolymer of ethylene oxide and propylene oxide. It is widely used in water-based hydraulic fluids, especially in water-ethylene glycol fire-resistant hydraulic fluids. This product enhances the performance of hydraulic fluids in extreme conditions, such as high temperatures and fire-prone environments, by improving their viscosity, lubricity, and fire resistance.

Key Properties and Benefits:

1. Water Solubility:
   PAG Viscosifier is water-soluble, making it ideal for use in water-based hydraulic fluids. Its solubility ensures uniform dispersion and effective performance in applications where water is a key component, such as fire-resistant hydraulic systems.

2. Viscosity and Thickening:
   It acts as an effective viscosifier, improving the thickness of the hydraulic fluid. This thickening enhances the lubricating properties, providing better protection against friction and wear, and contributes to the overall oil film strength. This improves the reliability and efficiency of hydraulic pumps and other components.

3. Lubrication and Wear Resistance:
   PAG Viscosifier helps to reduce friction between moving parts, extending the life of hydraulic components. By offering improved anti-wear properties, it enhances the overall durability and reliability of hydraulic systems, making it especially beneficial in demanding industrial environments.

4. Fire Resistance:
   One of the most important characteristics of PAG Viscosifier is its ability to improve the fire resistance of hydraulic fluids. It acts as a tackifier, forming a sticky film on hydraulic components that helps prevent the spread of flames in the event of a fire. This film also reduces the risk of ignition, providing enhanced safety in high-risk environments.

5. Thermal Stability:
   PAG Viscosifier has good thermal stability, meaning it can withstand high temperatures without losing its tackifying or lubricating properties. This makes it suitable for high-temperature hydraulic systems, where other additives might break down or degrade.

6. Chemical Structure:
   The product has the chemical formula R(C₂H₄O)ₓ(C₃H₆O)ᵧH, where “R” represents a non-ionic base, and the polymerization of ethylene oxide (C₂H₄O) and propylene oxide (C₃H₆O) imparts its unique properties.

Applications:

1. Water-based Fire-resistant Hydraulic Fluids:
   PAG Viscosifier is primarily used in water-ethylene glycol hydraulic fluids, which are widely used in applications that require fire-resistant properties. These include industries such as steel manufacturing, mining, and foundries, where the risk of fire is high due to the extreme conditions.

2. Base Oil for Metalworking Fluids:
   It is also used in the formulation of water-based synthetic metalworking fluids. These fluids are used in metal processing and provide both cooling and lubrication, preventing overheating and wear during machining and other processes.

3. Industrial Hydraulic Systems:
   In industries where hydraulic systems are exposed to high temperatures or where fire resistance is critical, PAG Viscosifier enhances the performance and safety of the system. It is particularly useful in aerospace, automotive, and heavy machinery industries.