Propylene glycol butyl ether is an environmentally friendly high-grade solvent, widely used in the following fields due to its low toxicity, low odor, high solubility, and hydrophilic-lipophilic balance properties:

I. Coatings and Ink Manufacturing (Core Application)

1. Coating Solvent

   • Acts as an active solvent for alkyd resins, epoxy resins, acrylic resins, and polyester paints, enhancing the gloss, smoothness, and adhesion of the paint film;
   • An efficient film-forming agent for water-based latex coatings, improving coating uniformity and drying performance.

2. Ink Modifier

   • Replaces traditional alcohol solvents to achieve water-soluble ink formulations, reducing toxicity and improving printing quality;
   • Acts as a coupling agent for dye dissolution, enhancing pigment dispersion stability.

II. Cleaners and Degreasers

1. Industrial Cleaning

   • A core component of heavy-duty cleaners, effectively dissolving grease, wax, and paint residues, used for cleaning metal equipment, tiles, and glass;
   • A key coupling agent in paint removers and plant-based grease removers.

2. Household Cleaning

   • The preferred choice for low-toxicity, environmentally friendly formulations, widely used in range hood cleaners, floor waxes, and hard surface cleaning products.

III. Special Functional Additives

1. Brake Fluid Component
   • A major component of new automotive brake fluids (accounting for over 40%), ensuring low-temperature fluidity.
2. Functional Additives
   • Fuel antifreeze, jet engine waterproofing agents, and non-ferrous metal beneficiation agents.
   • Pesticide emulsifiers and cosmetic humectants (must comply with safety standards).

IV. Prohibited Applications and Safety Regulations