An emulsion is a mixture of two or more liquid raw materials that are immiscible (unmixable). Two of the main types of emulsions are water-based and solvent-based. A water-based emulsion is an emulsion in which water is the continuous phase or the primary carrier. Particles of other liquids or additives, such as oil, are then suspended in the water.
Water-based paints are one of the most common examples of these emulsions. These specialty chemical mixtures are also used in the textile and chemical industries, the formulation of printing inks, and in sealants, adhesives, and binding agents. Manufacturers across virtually all industries use emulsions.
These emulsions are growing in popularity due to their environmental and health benefits. This blog will explore their key applications and advantages and how industrial manufacturers can use them.
Paints, Sealants, and Coatings
Many industrial paints, sealants, varnishes, primers, and protective coatings are now water-based. These materials can be added to surfaces to create or enhance desired properties.
Two common examples are water-based acrylic resins and water-based styrene acrylic, an emulsion that combines styrene and acrylic monomers with water. Using a water-based paint or coating such as an acrylic resin or styrene acrylic resin can enhance the durability, water repellency, and corrosion and abrasion resistance of surfaces. Acrylic resins and styrene acrylic resins are also found in graphic arts materials such as artists’ paints and interior and exterior paints.
Paper and Printing Inks
Water-based emulsions can be used in the paper and printing industry to make products such as printing inks and glossy coatings for paper. These options ensure better adhesion and water resistance while allowing for eco-friendly printing.
Adhesives and Binders
Water-based adhesives and binders, which are common in packaging, woodworking, and construction, offer strong adhesive properties for various materials with minimal environmental impact.
For example, vinyl acetate is added to water to make polyvinyl acetate (PVA), a common adhesive also known as white glue, wood glue, or carpenter’s glue. Manufacturers across numerous industries, from construction to textiles, use this versatile material.
Construction
Manufacturers and contractors in the construction industry use various water-based products. For example, styrene butadiene (often called SBR rubber or SBR latex) is a flexible adhesive rubber made from styrene and butadiene monomer suspended in water. It is used for a range of applications including as a carpet backing, to modify asphalt, and as an additive to concrete to improve its properties, amongst other uses.
Water-based emulsions emit significantly fewer volatile organic compounds (VOCs) than solvent-based products. VOCs are found in most household products and are released into the air when you use the products.
This lack of VOCs improves indoor air quality and reduces environmental pollution. They are less likely to contaminate water sources, and cleaning them up requires only soap and water instead of hazardous solvents.
