O-4.5 (10%, 25% BDG) | Oleth-4.5 Emulsifier for Metalworking Fluids

• Product Name: Oleth-4.5 (Diluted with Water & BDG)

• Chemical Type: Polyoxyethylene (4.5) Oleyl Ether Solution

• CAS No.: Mixture

  • Active Polymer (Oleth-4.5): 9004-98-2

  • Butyl Diglycol (BDG): 112-34-5

  • Water: 7732-18-5

Technical Specifications (Based on Certificate of Analysis)

• Appearance: Clear to light yellow, oily liquid

• Active Ingredients: 65% Polyoxyethylene (4.5) Oleyl Ether

• HLB Value: 9 (Intermediate lipophilic-hydrophilic balance, excellent oilaffinity)

• Formulation Composition: Consists of 65% Active Polymer, pre-blended with 10% Water and 25% Butyl Diglycol (BDG) solvent for low-temperature freeze-thaw stability and optimized pouring viscosity.

Oleth-4.5 (65% Active, 25% BDG, 10% Water) is a high-performance, specialized fatty alcohol ethoxylate solution engineered for advanced industrial fluid and lubricant applications. Featuring a finely balanced HLB value of 9, this oil-soluble unsaturated fatty alcohol derivative exhibits exceptional emulsive, wetting, and boundary-lubricating properties. The factory-integrated BDG-water vehicle effectively depresses the pour point of the pure surfactant, ensuring outstanding low-temperature fluidity, anti-gelation, and rapid tank blending without the need for auxiliary heating.

Key Applications & Technical Benefits

• Premium Metalworking Fluids (MWF): Widely utilized as a core non-ionic emulsifier, oil-soluble surfactant, and lubricity improver. It is highly optimized for soluble cutting oils, semi-synthetic concentrates, and rolling/stamping fluid formulations.

• Boundary Lubricity & Anti-Wear Enhancement: The unsaturated C18 oleyl chain provides a naturally superior affinity for metal surfaces. It easily forms a resilient chemical-physical adsorption film under boundary shear conditions, drastically reducing tool wear and friction heat.

• Excellent Formulation Coupling & Stability: The pre-blended BDG system acts as an elite coupling agent and co-solvent. It ensures rapid, seamless dispersion of the surfactant and other insoluble additives into complex oil-in-water (O/W) emulsions, preventing phase separation during long-term storage.

• Optimized Wetting & Detergency: Delivers top-tier metal-wetting performance, ensuring that cooling fluids wrap around the workpiece uniformly during high-speed machining, while contributing to post-process metal cleaning and degreasing efficiency.