Metalphoto vs Etched Stainless Steel

Etched and filled stainless steel underperforms Metalphoto® photosensitive anodized aluminum in select applications

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Etched and filled stainless steel has historically been used for nameplate, label and panel applications in harsh environments. Engineers have long defaulted to steel under the assumption that it will survive better than other materials. However, Metalphoto photosensitive anodized aluminum is actually superior to etched and filled stainless steel in many applications.

There are five misconceptions often cited about Metalphoto’s performance relative to stainless steel – this article explores and debunks each.

1. Durability: Etched steel is the most corrosion resistant label or nameplate material.
2. Legibility: Etched steel plates support detailed, high-resolution graphics.
3. Compatibility: Only steel labels and nameplates can be attched to steel surfaces without corroding.
4. Affordability: Etched stainless steel is always the lowest cost option for durable metal nameplates, labels and panels.
5. Flexibility: The easiest way to produce variable information nameplates is to individually engrave, punch or laser mark steel plates.

Misconception 1:  Etched steel is the most corrosion resistant label or nameplate material.
Truth:  The Metalphoto image is more resistant to corrosion than stainless steel in many environments.1

Stainless steel labels attached to alumimnum or steel containers often show significantly more corrosion than Metalphoto labels attached to the same materials. A major transportation manufacturer of shipping containers saw this phenomenon several years ago and switched from stainless steel to Metalphoto.

The reason for this is Metalhpoto’s durability, which comes from its photographic image that is sealed inside anodized aluminum, offering the uncommon combination of high durability, image resolution and variable information capability. Metalphoto parts remain readable for more than 20 years, even after prolonged exposure to cleaners, salt spray, fuels, heat, humidity, sunlight and abrasion. The National Association of Graphic and Product Identification Manufacturers (GPI) Industry Standards and Practices Manual identifies Metalphoto photosensitive anodized aluminum as the most durable printed aluminum substrate available, citing its applicability for extreme environmental conditions and outdoor exposure.

Misconception 2:  Etched steel plates support detailed, high-resolution graphics.
Truth:  Metalphoto graphics are cleaner and higher resolution than etched stainless steel.

Metalphoto is a true, high-resolution photographic technology; unlike etched stainless steel, which is a material removal process. This affords ultra-high image resolution and contrast; making Metalphoto ideal for graphic tolerances other printing methods cannot accommodate. This is especially important for detailed schematics, wiring diagrams, maps, small labels with tight copy or small barcode/data matrix symbols.

Etch and filled stainless steel is simply unable to consistently reproduce detailed linear and data matrix bar code symbols. As such, Metalphoto is ideal for high-detail, small labels on small surfaces such as guns, sight and communication equipment. Metalphoto also supports security printing features that make it a trusted deterrent for highly counterfeited products and assets.

Misconception 3:  Only steel labels and nameplates can be attached to steel surfaces without corroding.
Truth:  With proper attachment, Metalphoto provides very good corrosion resistance.

A common misconception is that attaching an aluminum label to a steel substrate will cause galvanic corrosion. With respect to corrosion resistance, studies by the Norwegian Marine Technology Research Institute (Marintek)3, the U.S. Navy4, and independent laboratories confirm that when coupled with proper attachment methods, Metalphoto provides no risk of corrosion when affixed to steel.

The Norwegian Marine Technology Research Institute (Marintek) found that Metalphoto plates showed “very good corrosion resistance” when properly attached to a steel plate and submerged in sea water.

Marintek found that a barrier layer of plastic or adhesive would be sufficient to minimize the effects of galvanic reaction. Likewise, when using mechanical fasteners, choose a fastener that is compatible with the attachment surface and fill the attachment holes with edge seal; alternately, separate the fastener with an insulating washer. For information download the Metalphoto Attachment Guide.

Misconception 4:  Etched stainless steel is always the lowest cost option for durable metal nameplates, labels and panels.
Truth:  Metalphoto nameplates can cost 10-20% less than etched and filled stainless steel, especially for variable data and/or runs of fewer than 500 nameplates.5

Metalphoto requires minimal set-up which allows faster turn-around and fewer labor hours/part — making it ideal for unique, customized parts and/or short production runs.

The reason is that Metalphoto’s imaging process is less labor intensive than etching and filling steel because it requires fewer steps.

Etching steel requires many steps, whereas Metalphoto only requires three steps: expose, develop, seal.

Moreover, at small volumes, steel’s extra setup requirements add complexity to the manufacturing process, driving up costs at short-run quantities.

Therefore, Metalphoto can be imaged by a single operator — cutting both labor time and cost. The result is shorter lead times and lower cost nameplates.

Misconception 5:  The easiest way to produce variable information nameplates is to individually engrave, punch or laser mark steel plates.
Truth:  Metalphoto can easily produce variable information tags tailored specifically to what is needed, without additional punching or engraving.

Metalphoto’s ability to create hundreds, thousands, even millions of unique labels or nameplates is a function of its unique imaging process. Unlike etching and filling steel, where the many processing steps result in prohibitive costs for items containing unique information, Metalphoto’s three-step processing makes it economically feasible to process a high volume of unique data plates. The benefit of this process is that Metalphoto labels and nameplates can contain “item-unique” serialized data, one-of-a-kind instructions and/or barcodes of any symbology. These durable barcodes can connect assets to computer systems, reduce data entry errors and enable asset tracking and management.

Additionally, Metalphoto is available with a variety of physical options that etched and filled steel cannot offer. Metalphoto is available in thicknesses ranging from 0.003″ to 0.125″, and in four different finishes: matte, satin silver, brushed and mirror-like gloss. Metalphoto is also compatible with an array of attachment methods (see Metalphoto Attachment Guide). All these customization options ensure that Metalphoto can meet the requirements of a wide range of applications, and that each Metalphoto part is tailor made for its specific application, perfectly meeting the demands of its intended use.   Get the PDF copy of this page

Footnotes
1 One noteable exception where steel would be prefferable is extremely alkaline environments.
2 Salt spray test per ASTM B117.
3 Marintek Report – Corrosion test of anodized aluminum name plates – Metalphoto.
4 Naval Surface Warfare Center, Corona Division – Label Material Environmental Survivability Test.
5 Based on quotations from manufacturers of both etched steel and Metalphoto.

Metalphoto is produced by Horizons Imaging Systems Group, an internationally recognized manufacturer of printable aluminum technologies. Employing a range of processes, the company’s state-of-the-art manufacturing lines are located in Cleveland, Ohio, USA. For more information, visit www.horizonsisg.com. Horizons ISG does not warrant the performance of its materials in any environment.

What is etched stainless steel sheet?

An etched stainless steel sheet is a metal product that has undergone a specialized manufacturing process known as chemical etching or acid etching. In this process, a pattern or design is chemically engraved onto the surface of the stainless steel sheet using an acid-resistant protective mask or stencil.

Material & Size Options For Etched Stainless Steel Sheet

Etched stainless steel sheets are a popular choice for various applications due to their aesthetic appeal and versatility. The process of etching involves using chemicals or other methods to create intricate patterns, designs, or textures on the surface of stainless steel. This technique allows for the creation of visually appealing and functional surfaces. Some of the common material options for etched stainless steel sheets include:

304 Stainless Steel :This is one of the most commonly used grades of stainless steel for etching. It is a versatile and corrosion-resistant material suitable for various indoor and outdoor applications.

316 Stainless Steel:This grade of stainless steel contains molybdenum, making it more resistant to corrosion, particularly in marine and highly corrosive environments. It is an excellent choice for applications where enhanced corrosion resistance is required.

430 Stainless Steel:This is a lower-cost alternative to 304 and 316 stainless steel, and it provides good corrosion resistance in mild environments. It may not be as resistant to corrosive elements as 304 or 316 stainless steel but can still be a viable option for some applications.

Duplex Stainless Steel: Duplex stainless steels, such as grade 2205, offer a combination of high strength and corrosion resistance. They are commonly used in applications where both properties are essential.

Colored Stainless Steel:In addition to the standard stainless steel finishes, such as brushed or mirror-polished, colored stainless steel sheets are also available for etching. These sheets have a special coating that allows for a wide range of colors and patterns, enhancing the design possibilities.

Titanium-Coated Stainless Steel: Titanium-coated stainless steel sheets provide a unique and colorful appearance. They are often used in architectural and decorative applications.

Patterned or Textured Stainless Steel:Some stainless steel sheets come with predefined patterns or textures that can be further enhanced through etching. These patterns can add depth and dimension to the final design.

Pattern Options For Etched Stainless Steel Sheet

Etched stainless steel sheets are a popular choice for various applications, including interior and exterior design, architectural elements, signage, and more. The process of etching involves using chemicals or lasers to create patterns, designs, or textures on the surface of stainless steel sheets. Here are some pattern options for etched stainless steel sheets:

Etched stainless steel sheet process are as follows:

1. Preparation: A stainless steel sheet is selected with the desired size, thickness, and grade (e.g., 304, 316).

2. Design and Masking: The desired pattern or design is created using computer software or traditional methods. A protective mask made from acid-resistant materials (e.g., photoresist or polymer) is then applied to the stainless steel sheet. The mask covers the areas that need to remain untouched during the etching process, leaving the design exposed.

3. Etching: The masked stainless steel sheet is immersed in an etchant, which is typically an acidic solution (e.g., nitric acid, hydrochloric acid) or a mixture of chemicals. The etchant reacts with the exposed metal, dissolving it and creating the desired design.

4. Cleaning and Finishing: After the etching process is complete, the protective mask is removed, and the stainless steel sheet is thoroughly cleaned to remove any remaining etchant or residues. Depending on the desired finish, additional surface treatments like polishing or brushing may be applied.

Applications of etched stainless steel sheets

Etched stainless steel sheets have a wide range of applications due to their unique and visually appealing surface finishes. Some common applications of etched stainless steel sheets include:

•Architecture and Interior Design: Etched stainless steel sheets are used in architectural projects for interior and exterior decoration. They add an elegant and modern touch to building facades, wall cladding, column covers, elevator panels, and decorative screens.

•Signage and Branding: Etched stainless steel sheets are used to create signs, logos, and branding elements for commercial and corporate spaces. The etched designs provide a sophisticated and distinctive look for reception areas, offices, and public spaces.

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•Kitchen and Home Appliances: Etched stainless steel sheets are applied in kitchen appliances, such as refrigerator panels, oven doors, and splashbacks, to enhance their appearance and make them stand out in contemporary kitchen designs.

•Automotive Industry: Etched stainless steel sheets find use in automotive trim, logos, and decorative elements, adding a touch of luxury and uniqueness to vehicles.

•Jewelry and Accessories: Etched stainless steel sheets are utilized in jewelry making, watch dials, and other fashion accessories due to their intricate and attractive patterns.

• Electronics and Technology: Etched stainless steel sheets are used in electronic devices, like smartphones and laptops, to create visually appealing back panels or logos.

• Nameplates and Labels: Etched stainless steel sheets are employed to create durable and high-quality nameplates, labels, and serial number tags for industrial equipment and machinery.

• Art and Custom Designs: Artists and designers use etched stainless steel sheets as a medium to create custom art pieces, sculptures, and decorative installations.

• Retail and Commercial Displays: Etched stainless steel sheets are used in retail spaces, exhibitions, and museums to create eye-catching displays and product showcases.

• Furniture and Home Decor: Etched stainless steel sheets can be incorporated into furniture design, such as table tops, cabinets, and room dividers, to add a touch of elegance and sophistication.

 

  

Advantage of Etched Stainless Steel Sheet?

Etched stainless steel sheets offer several advantages, making them a popular choice for various applications. Here are some of the key advantages:

•. Aesthetic Appeal: Etched stainless steel sheets have a unique and elegant appearance. The etching process allows intricate patterns, designs, and textures to be created on the surface, giving the metal sheet a visually captivating and artistic look.

• Customization: Etched stainless steel sheets can be customized with a wide range of patterns, designs, logos, or text. This level of customization makes them suitable for architectural elements, interior design, signage, and branding applications.

• Durability: Stainless steel is inherently corrosion-resistant, and this property extends to etched stainless steel sheets. The addition of the etched pattern does not compromise the material’s durability, making it suitable for both indoor and outdoor use.

•Scratch Resistance: The etched patterns on the surface of the stainless steel sheet can provide a level of scratch resistance, helping to maintain the appearance and integrity of the sheet over time.

• Easy to Clean: Stainless steel surfaces are easy to clean and maintain. Etched patterns do not trap dirt or grime, making cleaning a simple task.

• Hygienic: Stainless steel is a non-porous material, making it resistant to bacterial growth. This makes etched stainless steel sheets a hygienic choice for applications such as kitchen backsplashes, food processing, and healthcare facilities.

•Versatility: Etched stainless steel sheets are versatile and can be used in a wide range of applications, including interior and exterior architectural elements, elevator panels, wall cladding, decorative features, and more.

• Longevity: Properly maintained, etched stainless steel sheets can have a long lifespan, making them a cost-effective and durable choice for various projects.

• Resistance to Fading: The patterns and designs on etched stainless steel sheets are resistant to fading, ensuring the metal sheet retains its visual appeal over time.

• Environmental Friendliness: Stainless steel is a recyclable material, making etched stainless steel sheets an eco-friendly option. Additionally, some suppliers use environmentally responsible etching processes and materials.

• Heat and Fire Resistance: Stainless steel has excellent heat and fire resistance properties, making etched stainless steel sheets suitable for applications where fire safety is a concern.

Overall, etched stainless steel sheets combine aesthetics, durability, and customization options, making them a favored material in architecture, design, and various industrial applications.

What To Consider When Buying Etched Stainless Steel Sheet?

When buying etched stainless steel sheets, several factors should be taken into consideration to ensure you get the right product for your specific needs. Here are some key points to consider:

1. Grade of Stainless Steel: Stainless steel comes in different grades, each with its own unique properties and applications. The most common grades used for etched stainless steel sheets are 304 and 316. Grade 316 stainless steel offers better corrosion resistance, making it more suitable for outdoor or marine applications, but it is generally more expensive than 304.

2. Thickness: Consider the thickness of the stainless steel sheet based on your intended use. Thicker sheets offer more strength and durability but can be heavier and costlier. Thinner sheets are often used for decorative purposes and interior applications.

3. Etching Quality: Check the quality of the etching work. The lines should be clean, and the design should be accurately reproduced without any blemishes or defects. High-quality etching ensures a visually appealing and long-lasting product.

4. Pattern and Design: Decide on the specific pattern or design you want for the etched stainless steel sheet. Some suppliers offer pre-designed patterns, while others can create custom designs based on your requirements.

5. Finish: Etched stainless steel sheets come in various finishes, such as polished, brushed, matte, or textured. The finish can significantly impact the final appearance and how it interacts with light.

6. Size: Consider the size of the stainless steel sheet you need for your project. Some suppliers offer standard sizes, while others can cut the sheets to custom dimensions.

7. Application: Think about the intended use of the etched stainless steel sheet. Whether it’s for interior decoration, exterior cladding, signage, or industrial purposes, the application will influence the material and design choices.

8. Budget: Set a budget for your purchase. Etched stainless steel sheets can vary in price depending on the grade, thickness, finish, complexity of the design, and other factors.

9. Supplier Reputation: Research the reputation of the supplier or manufacturer. Look for customer reviews, testimonials, and examples of their previous work to ensure they can deliver the quality and service you expect.

10. Environmental Considerations: If environmental sustainability is a concern, inquire about the supplier’s eco-friendly practices and whether they use environmentally responsible materials and processes.

11. Installation and Maintenance: Consider the ease of installation and any specific maintenance requirements for the chosen etched stainless steel sheet.

12. Compliance and Certifications: Ensure that the stainless steel sheets meet any relevant industry standards or certifications required for your specific application.

By considering these factors, you can make an informed decision and find the best etched stainless steel sheet that suits your project requirements and budget.

 

Conclusion
There are many reasons to choose stainless steel etched sheet for your project. Contact HERMES STEEL today to learn more about our products, and services or get free samples. We would be happy to help you find the perfect solution for your needs.Please feel free to CONTACT US !

Post time: Aug-01-2023

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