Understanding the Different Types of Industrial Coatings
Industrial coatings appear all around us. They protect a diverse array of products from corrosion and decay, with applications ranging from:
- Building products
- Construction equipment
- Architectural projects
- Agricultural equipment
Manufacturers usually apply industrial coatings during the later stages of assembly. Finishing products with the right liquid coating material protects and strengthens its individual parts and the product as a whole.
Whether the manufacturer desires their product to be rigid or flexible, the right industrial coating provides the finish they need. Well-chosen industrial coatings make products last longer and look better.
To achieve your desired results, it’s important to know about the different types of industrial paint coatings available and what they do. Here, we’ve compiled a list of some of the most commonly used types of industrial coatings, as well as the benefits they bring to their potential applications.
Manufacturers use polyurethane coatings in a wide array of environments, often as a protective final coat over other industrial coatings. Polyurethane resists abrasion, meaning that it can enhance durability and create a finish that withstands scratches.
These coatings keep their color well and have an attractive, high-gloss finish. The formulation of aliphatic polyurethane coatings allows them to stand up against UV and environmental conditions, making this coating a good choice for outdoor applications.
When used with aromatics, polyurethane products resist degrading underwater, but they develop a white film when exposed to air. While these coatings do contain compounds that require protection for workers or have when they are applied, they’re available in low VOC formulations.
These coatings usually consist of a curing agent applied over an epoxy base. Altering the formulation of these two components creates a wide variety of characteristics. This provides manufacturers the flexibility to adjust the coating so it meets the demands of different environments.
Epoxy coatings bond well to many different surfaces, and they resist weather and abrasion extremely effectively. Epoxy coatings also withstand higher temperatures than other coating materials, resisting heat levels of ~200–1,400°F.
Epoxies are available in two or three part systems. Epoxy’s two-component system, using a zinc primer followed by polysiloxane, is faster to apply than three-coat application systems using zinc, epoxy, and polyurethane. Not only does this more straightforward approach help you save on material costs, but the ease of application and shorter installation speeds will reduce labor expenses as well. However, polyurethane finishing coats provide a more visually appealing gloss, which enhances the appearance of the substrate. This especially benefits exterior-facing surfaces requiring both high-quality protective varnishes and visually appealing surfaces.
Alkyd coatings are applied to prepared substrates to resist the effects of many different environments. They function effectively in interior, exterior, underwater, and underground settings.
Manufacturers can adjust the components used to formulate alkyd coatings to help them adapt to a variety of conditions. Because they must be permeable to oxygen, alkyd coatings take longer to dry than other coatings.
These coatings have high levels of zinc dust, and they’re available in both organic or inorganic formulations. Organic zinc coatings are made with epoxy or polyurethane binders, and inorganic zinc coatings use silicate binders.
Zinc coatings are particularly effective when used on steel, as they provide both galvanic and barrier protection. Zinc-rich coatings are very durable and resist abrasion effectively.
Acrylic coatings have many advantages, but they especially make great adhesion-promoting primers. These coatings are made with high levels of additives and binders that increase how well they perform. At the same time, they incorporate fewer surfactants, pigment dispersants, and rheology modifiers that other coatings, which helps preserve a product’s ability to resist corrosion.
Find the Coating You Need
With so many different types of industrial coatings, you’re sure to find one that precisely meets your requirements. At Aexcel Corp., we build custom formulations to create an industrial coating that is tailored to your specific end use and application needs. For more information, contact us today.