When it comes to industrial coating, each approach has its own set of benefits and functions. While there are various types of industrial coatings to choose from, it’s critical to understand the benefits, savings, costs, and risks associated with each process before making a decision.
Industrial coatings are known for their protective qualities and their ability to enhance specific properties such as wear resistance, conductivity, and more. For many years, industrial coatings have been used in various industries and have proven to be highly effective at maintaining and preserving the integrity of storage tanks, containers, and structures.
With that, knowing the numerous types of industrial coatings and which applications they are suitable for will enable you to consistently achieve the best finish and maximum level of protection for your materials. Here we have outlined five of the most prevalent industrial coatings now in use:
#1. Polyurethane Coatings
A polyurethane coating retains color and adds a glossy abrasion-resistant finish. Due to these features, polyurethane coatings are recommended as a topcoat for surfaces that should remain scratch-free and smooth. They can also preserve other coatings, such as epoxy intermediate coats and zinc-rich primers, on surfaces that are subjected to harsh conditions, such as large ships and nuclear power plants.
There are two primary classifications of polyurethane coatings: aliphatic and aromatic. Aliphatic polyurethane coatings are excellent for outdoor use and provide great color retention. Aromatic coatings react in the sun as epoxy coatings do, and can yellow over time.
As with many industrial coatings, polyurethane coatings contain hazardous chemicals before they are cured, so workers must wear protective gear when applying them. Polyurethane coatings also tend to be more expensive up-front than epoxy coatings.
#2. Epoxy Coatings
Epoxy coatings offer the best resistance to severe temperatures, corrosive fluids, turbulence, and abrasion. Aside from that, epoxy coating is not only long-lasting but also highly resistant to corrosive elements. Epoxies are popular for several industrial coatings, including concrete, metal, steel, and more.
Industrial epoxy coatings are typically applied in three layers. A primer, such as zinc primer, is first placed. The epoxy is then sprayed on top. Finally, an epoxy binder or polyurethane topcoat is applied to complete the coating process.
Epoxies have been known to exhibit chalking when exposed to sunlight. As a result, epoxies are the best choice in interior or submerged applications.
#3. Polysiloxane Coatings
Polysiloxane coatings are often utilized in applications subjected to high temperature, UV exposure, chemicals, and abrasion. In terms of gloss retention, polysiloxanes offer outstanding weathering properties. They also contain anti-graffiti qualities, chemical resistance, dirt pickup resistance, abrasion, and corrosion resistance.
Polysiloxane coatings are a desired choice in conjunction with epoxy. By pairing them, they can improve corrosion resistance and broaden its application. It increases coating longevity and effectiveness for both indoor and outdoor usage.
Polysiloxanes are substantially more expensive than other kinds of industrial coatings, and combining them with another type of coating can significantly drive up the cost, however the tradeoff is consistent with the durability and longevity of the application.
#4. Zinc-Rich Coatings
A zinc-rich coating has a high percentage of zinc dust when directly contacting with steel, and it also acts as a sacrificial layer. Zinc-rich coatings are utilized in preventing corrosion and extending the life of steel surfaces. Highways and infrastructure, as well as automotive and industrial applications, incorporate them widely.
Zinc coatings come in two varieties:
- Inorganic – When it comes to inorganic zinc coatings, spraying is necessary. With no topcoat, inorganic zinc coatings outperform non-top-coated organic zinc coatings in terms of steel protection.
- Organic – Spray, roller, and brush are the most common tools for applying organic zinc coatings. Without a topcoat, they do not preserve the steel as well as an inorganic primer. When organic zinc coatings are top coated, they give the same level of protection as inorganic zinc coatings.
#5. Alkyd Coatings
In a variety of conditions, alkyd coatings can be applied to prepared substrates. Their usage is primarily for decoration and to protect steel that’s exposed to moderate conditions. They are available in a single-pack format. However, the minor drawback of alkyd coating is that it requires oxygen to complete the chemical reaction that transforms the application into a long-lasting finish. These coatings take longer to dry than other products because oxygen must distribute throughout the paint film.
Industrial Coatings Experts You Can Count On
We are only as good as the service we provide, and we go the extra mile to ensure all of our personnel are trained to industry standards. At NDT Tanknicians, we embrace the tough challenge set in place to be certified by entities such as the Environmental Protection Agency (EPA,) American Petroleum Institute (API,) Steel Tank Institute (STI,) American Society for Nondestructive Testing (ASNT,) and the National Association of Corrosion Engineers (NACE,) to name a few.
We’re capable of providing top-to-bottom coverage for all of your Storage Tank requirements; servicing a broad spectrum of clientele, both small and large. Our ability to streamline an entire project gives us an edge over the competition by providing our clients with the peace of mind and convenience of trusting one service provider to become familiar with all of their current and future needs, rather than half a dozen. This keeps costs to a minimum, quality control consistent and communication among crews seamless. Request a quote today.