Colored Stainless Steel Sheets - JTC Metals

What is PVD Colored Stainless Steel

There are many methods for coloring metals, but the process for coloring stainless steel known as PVD - Physical Vapor Deposition is by far the toughest and longest lasting available today if done correctly. It is achieved by placing the product in a vacuum chamber and heating a proprietary blends of metals and compounds causing them to vaporize and pulling them across the chamber with magnets to create a uniform and ultra-tough coating on the product being coated. This is an extremely basic explanation of PVD. It's very difficult to do correctly and experience is a must.

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You will not be able to tell the difference between a low quality PVD product or a high quality PVD product until it's been installed in the field. At that point, it's far too late to be looking for the right solution. We understand you have other issues to think about than a subpar product, and the last thing we want is a call about a failed installation. That is why we scour the market to find the best material we can get our hands on.

Architectural Specification

Unlike LIC (light interference coloring) and electroplating, PVD can actually be specified from project to project without having to worry about colors changing or whether the color will change from sheet to sheet. None of the dipping processes can guarantee that and it's something to ask about when you're sourcing. However, the PVD process also has to be carried out correctly in order to achieve this level of uniformity. The point is your elevator, sky scraper, or corner guards will be the desired color, and not some random shade that would leave you with a tarnished reputation.

Long Term Reliability of PVD Coloring:

PVD coated stainless steel is excellent for both indoor and outdoor use as it maintains the color over many years, and will not change color when exposed to UV, if it's done correctly. It is also excellent as a secondary coating to the stainless steel as chemicals and detergents generally do not affect the finish. The available anti-fingerprint coating is extremely easy to clean and is fantastic for areas prone to graffiti as it's hydrophobic and is difficult to paint or color on.

Environment Implications of PVD Coated Stainless Steel

The coating process itself has much lower environmental impact than any dipping, electroplating, galvanizing or liquid coated application process, and there are no toxic chemicals to worry about or clean up. With the newer PVD technology entering the marketplace today, there is finally a coloring solution for stainless steel that can replace any other, with superior results that can actually be warrantied.

Available Materials for Color Stainless Steel

Colored stainless steel is available in 304 and 316 stainless steel and offers an attractive finish for general (304ss) and harsh environments (316ss). The PVD (Physical Vapor Deposition) surface treatment is quite durable, and is actually harder than the stainless steel surface itself. This sounds great, but don't misunderstand. The benefits are a more impact and scratch resistant finish, but it’s not bullet proof. So don't expect the PVD coating to remain unscathed when you take a wire brush to it. However, it is vastly superior to the colored, black, or grey surface treatments available on the market today whether they're dipped or painted.

Fabrication and Installation of PVD Stainless Steel

We have received many inquires on the fabrication limitations of PVD stainless steel, and have included our own experiences here. If there is something not addressed here, please let us know. We offer fabrication services for construction projects, and commercial and industrial applications. Let us know about your project and/or job requirements on the Contact Us page.

Impact and Scratch Resistance:

The PVD coating is harder than the stainless steel surface itself and offers increased scratch and wear resistance. The end result is a product that will hold up well to general wear and tear from cleaning, clothing, shoes, luggage, human interaction, etc. However, do not expect something that will provide lifetime performance against abrasion impact such as carts running in to it, wheels hitting it, aggressive scratching from cleaning pads, or any other abrasion and/or impact that you would not subject other finished materials too. If you use it in applications it is intended for, expect decades of service. If you're not sure, please ask.

AF Coating:

The AF (anti-fingerprint) coating is also PVD, and is the only one of its kind. It's easy to clean and is good for applications such as backsplashes, partitions, wall coverings, appliances, interior architectural applications, and areas prone to graffiti. If you are going to be using PVD stainless steel in an application where some kind of surface treatment is required, please bear in mind, the AF is not desirable due to the hydrophobic properties and hardness. While the anti-fingerprint coating is tough and extremely durable, testing is still ongoing for outdoor durability so there is currently no warranty for exterior use.

Bending:

You can bend the stainless without any issues. The PVD coating will not flake, crack, or otherwise show any defects. We have formed angles from 0 -180 degrees, and have hemmed colored and black stainless steel. The hem was an open, teardrop hem, and there were no defects in the surface of the metal, and the coloring was consistent.

Welding:

While you can certainly weld colored and/or black stainless steel, you will not be able to grind or polish the weld. If you absolutely insist on welding, the goal is to laser weld from the inside of a corner, or from the side that is not seen. If that is not possible, aim for a very fine weld with no filler rod or wire. Of course this will mean having parts that are extremely tight fitting.

Stainless steel is renowned for its durability, corrosion resistance, and timeless appeal. It has been a staple in various industries and applications for decades, from kitchen appliances to architectural structures. However, in recent years, a new trend has emerged—colored stainless steel. While this innovative material adds an aesthetic dimension to stainless steel, many wonder whether it retains the same level of durability as its traditional counterpart. In this article, we will explore colored stainless steel, its manufacturing process, and whether it stands up to the test of time and wear.

 The Art of Coloring Stainless Steel

To understand the durability of colored stainless steel, it's crucial to first comprehend how it's created. Traditional stainless steel is known for its silver, metallic appearance, which is achieved through a passive oxide layer on the surface. This layer gives stainless steel its corrosion resistance.

When coloring stainless steel, manufacturers apply a special finish to the surface. This finish can be a variety of colors, from classic black to vibrant red or blue. The process often involves the application of a thin film of material that changes the steel's color without compromising its core properties.

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 The Durability Factor

 Corrosion Resistance

One of the primary concerns when it comes to colored stainless steel is its corrosion resistance. Traditional stainless steel's resistance to rust and corrosion is a hallmark of its durability. The passive oxide layer that forms on the surface acts as a shield against environmental elements.

Colored stainless steel retains its corrosion resistance, but there is a caveat. The coloring process can potentially disrupt the uniformity of the oxide layer, making it slightly more susceptible to corrosion in certain conditions. However, this doesn't mean that colored stainless steel is inherently less durable; it simply requires proper care and maintenance to ensure longevity.

 Scratches and Wear

Stainless steel, in its natural state, is known for its ability to hide minor scratches and wear due to its metallic finish. In contrast, colored stainless steel may be less forgiving in this regard. Scratches and abrasions can be more noticeable on colored surfaces, particularly if the coloring process has altered the steel's texture.

However, this doesn't necessarily imply that colored stainless steel is less durable. It's important to note that both traditional and colored stainless steel can withstand a considerable amount of wear and tear. The key difference is in the aesthetic aspect—colored stainless steel may require more care to maintain its visual appeal.

Colored Stainless Steel Sheet

 The Maintenance Equation

The longevity and durability of colored sheet metal, much like traditional stainless steel, heavily depend on proper maintenance. To ensure that your colored stainless steel fixtures or appliances stand the test of time, consider the following maintenance tips:

 1. Regular Cleaning

Regular cleaning is essential to prevent the buildup of dirt, grime, and contaminants that can compromise the finish. Use mild, non-abrasive cleaners to maintain the surface's appearance.

 2. Avoid Abrasive Materials

Avoid using abrasive materials like steel wool or harsh scouring pads, as they can scratch the colored surface. Opt for soft cloths or sponges instead.

 3. Protective Coatings

Some colored stainless steel products may come with protective coatings that enhance their durability. Be sure to inquire about these options when purchasing.

 4. Environmental Factors

Consider the environment in which the colored stainless steel sheet mental will be used. In harsh outdoor conditions, stainless steel, whether colored or traditional, may require more frequent maintenance to retain its appearance and durability.

 Conclusion

In conclusion, colored stainless steel can be a durable and visually appealing choice for various applications. While it may require slightly more care to maintain its appearance compared to traditional stainless steel, it still offers excellent corrosion resistance and longevity when properly maintained.

Ultimately, the choice between colored stainless steel and traditional stainless steel sheet comes down to personal preferences and the specific requirements of your project. When considering colored stainless steel, keep in mind that its durability is not significantly compromised by the coloring process; rather, it necessitates conscientious maintenance to preserve its aesthetic appeal.

In the end, whether you opt for the classic silver sheen of traditional stainless steel or the vibrant hues of colored stainless steel, both have their place in the world of design and functionality, serving as enduring materials that can withstand the test of time.