715-355-4500 sales@schuettemetals.com MARKETS SOLUTIONS MANUFACTURING ABOUT CAREERS SCHUETTE BLOG CONTACT Home " Schuette Blog SCHUETTE METALS BLOG Easily Achieve Benefits By Powder Coating Architectural Steel 5 min read| 1 Comment | 2K| by Dave Manney| April 2, 2021 | Protective Finishing The idiom, "if a tree falls in the forest but nobody is around to hear it, does it make a sound?" was a scientific thought experiment or philosophical allegory, depending on whom you're speaking to. The version I'd like to ask is: if hidden architectural steel is powder-coated, does it matter? After all, one reason for powder coating metal is aesthetic—coating metal with powder results in beautiful pieces typically installed in areas where people see them. What would be an excellent reason to powder coat something nobody sees? I'm glad you asked! Advantages Of Powder Coating As we've discussed in "The Familiarity and Strength of Powder Coating," there are eight advantages for using powder coating: COST-EFFECTIVE You only buy the amount of powder coat needed Powder coating is cheaper than wet paint If it's not contaminated or damaged, it's recyclable We can reuse it after reclaiming it for future applications It eliminates extra steps and extra drying time DURABILITY Powder coating is long-lasting Surfaces are resistant to chipping, fading, scratches, or wear Color remains durable and lasts longer High resistance to moisture, chemicals, impacts, and weather Passes salt spray testing EFFICIENT PROCESS Waste is reduced because of the electromagnetic charge. The powder adheres to the metal. The spray nozzle uses only the amount of powder needed. CURING AND DRYING Less time needed for curing, processing, and drying compared to wet paint applications Curing takes minutes, allowing for quick assembly and packaging. The powder doesn't contain VOCs or solvents. Heated air is recycled, filtered, and emptied back into the shop. Powder applications need less air and air exchanges compared to wet paint applications. VARIETY Wide range of colors, finishes, thicknesses, and textures Powder coating eliminates many of the issues facing wet paint applications, such as dripping, sagging, or running MAINTENANCE Soapy water, rinsed with water, is all that's needed to clean a powder-coated application. No need for special solvents or cleaners. ENVIRONMENTALLY FRIENDLY There are no VOCs, solvents, or other harmful chemicals in the powder, making disposal safe. Lower carbon dioxide emissions No primer is necessary for powder coating applications QUALITY The finish of a powder coat is excellent. It's evenly distributed, doesn't run or drip. AAMA Performance Specifications In the architectural world, liquid and powder coatings are treated equally. The Fenestration & Glazing Industry Association (FGIA) has written many voluntary specifications regarding testing and performance requirements. Before it became the FGIA, the American Architectural Manufacturers Association (AAMA) composed those specifications. Despite the new organization's name, it refers to any specifications as AAMA. AAMA tests coatings to determine how well they last. Many factors are measured, primarily gloss retention, color retention, and paint thickness after drying. There are three AAMA coating specifications: 2603, 2604, and 2605. AAMA 2603 The most basic type of coating is those meeting the AAMA 2603 specification. They usually coat ceiling tiles and inside windowsills to meet the 2603 spec. This level protects against scuff marks and wear and tear, but not extreme outdoor weather. 2603 Ratings Color retention: The AAMA doesn't recommend using 2603 for the powder coating process in Preston, WA on materials that need to keep color over a long period. Their estimate says that it fades after one year of use. Gloss retention: There is no specification for gloss retention for 2603 rated paint. Thickness: To achieve a 2603 rating, paint must be a minimum of 0.8 mm. Accelerated testing: 2603 rated paint must withstand 1,500 hours of salt spray and humidity abuse before becoming damaged. AAMA 2604 We can find coatings specified to 2604 in high-traffic areas because it's durable. According to Key Link fencing and railing, AAMA 2604 powder coatings are formulated with super durable or modified polyester resins. This finish provides good color and gloss retention for approximately five years of exposure. 2604 ratings Color retention: 2604 rated paint must maintain an acceptable level of color change over 5 years. Gloss retention: After 5 years, 2604 paint must keep 30% of its gloss. Thickness: To achieve 2603 rating, paint must be a minimum of 1.2 mm. Accelerated testing: 2603 rated paint must withstand 3,000 hours of salt spray and humidity abuse before becoming damaged. AAMA 2605 If coated architectural metal needs to withstand harsh weather over a long time, then the metal needs to meet 2605 specifications. The 2605 specification is the highest standard available for organic coatings. Key Link describes AAMA 2605 as: … the high-performance exterior specification. These finishes are resistant to moisture, weathering, ozone, and UV radiation. An application for this finish would include architectural projects that require long-term cosmetic & functional protection (approx. 10 yrs). 2605 ratings Color retention: 2605 rated paint must maintain an acceptable level of color change over a 10-year span. Gloss retention: Fifty percent of the paint's gloss must be maintained after 10 years. Thickness: To achieve 2605 rating, paint must be a minimum of 1.2 mm. Accelerated testing: 2605 rated paint must withstand 4,000 hours of salt spray and humidity abuse before becoming damaged. AAMA Testing Process For meeting AAMA specifications, they test coated panels in many ways. These tests include: Abrasion resistance Adhesion Chemical resistance Corrosion resistance Dry film hardness Humidity resistance Impact resistance Weathering resistance The AAMA coatings specifications are particularly important when dealing with weathering (exterior durability) performance. To ensure the aesthetic properties of the coating are maintained over time, coated panels are tested in Florida (actually known as Florida testing) for ten (AAMA 2605), five (AAMA 2604), and one (AAMA 2603) year. Florida weather allows the coatings to be continuously exposed to harsh UV light, humidity, and salt air. After exposure to these conditions, the aesthetic properties, namely color, and gloss are measured. AAMA Specifications For Paint Linetec does an excellent job of breaking down the differences of each AAMA specification. Specification AAMA 2605 AAMA 2604 AAMA 2603 South Florida Weathering Color Retention 10 yrs: Fade - 5 Delta E 5 yrs Fade = 5 Delta E 1 year: "slight" fade Chalk Resistance 10 yrs: Chalk = 8 5 yrs: Chalk = 8 1 year: "slight" chalk 1 year: "slight" chalk 10 yrs: 50% retention 5 yrs: 30% retention No specification Erosion Resistance 10 yrs: 10% loss 5 yrs: 10% loss No specification Dry Film Thickness 1.2 mils minimum 1.2 mils minimum 0.8 mils minimum Pretreatment System Chrome or Chrome-Free Chrome or Chrome-Free Chrome or Chrome-Free Accelerated Testing Salt Spray 4,000 hours 3,000 hours 1,500 hours Humidity 4,000 hours 3,000 hours 1,500 hours Warranty 10 year 5 year 1 year In Sum Companies coating architectural metal aren't generous in their efforts. They're not simply making things look good to make themselves look good. Sure, looking at powder-coated metal is much easier than unfinished metal, and that belies the fact those companies are providing value-added services, ensuring its structural integrity. Although it's very cliché, a chain is only as strong as its weakest link. The same holds for a building or other structure using metal. If a small portion oxidizes, over time, corrosion has a tremendous effect on that structure's overall health. A portion of weakened metal carries that malady throughout the structure, placing it and people in and around it in danger. Unfortunately, if something falls on a busy street, the noise it makes will be significant. RELATED POSTS THE FAMILIARITY AND STRENGTH OF POWDER COATING Powder Coating is one of the most popular methods of protecting metals. It's cheaper, lasts longer, and is environmentally friendly. A-COATING ISN'T JUST A COATING! The A-Coating process resembles an e-coat. Both are excellent at protecting metals, but the process is the main difference between the two. ONE OF THE MOST RELIABLE WAYS OF PROTECTING STEEL: GALVANIZATION What do alchemy, Frankenstein, and a frog have in common? Galvanization! TWO-COAT SYSTEMS USING E COATING The two-coat process, including e-coating, provides greater protection from rust and corrosion over other metal finishing systems. Not having a basecoat shortens the lifespan of your component. E-COAT VS A-COAT: THE TALE OF THE TAPE! When comparing e-coatings to a-coatings, there's very little daylight between the two processes. Turns out, the main difference turns out to be something small. 3 IMPORTANT FACTORS TO CONSIDER WHEN FORMING STEEL Metal fabrication uses many materials and techniques for creating reliable products. Yet, there are 3 important factors to consider while forming steel Architectural Steel SHOWING 1 COMMENT Donnie 7 months ago Great efforts seen on providing an informative blog on steel powder coating. The testing performance and coating specifications are well explained. your Comment will be showing after administrator's approval ADD NEW COMMENT Name* Email* Website Comments Html Preview b i u quote Notify me when new comments are added Save Comment Subscribe to Fab Times! First Name Last Name Email Subscribe! LET’S START A CONVERSATION. WE’RE JUST ONE CLICK OR CALL AWAY. Mailing Address: PO Box 1305 Wausau, WI 54402-1305 Shipping Address: 1604 Morrison Avenue Rothschild, WI 54474 Phone: Voice: 715-355-4500 Fax: 715-355-4711 Email: sales@schuettemetals.com Stay Social: Schuette Inc. - Metal Division Copyright © 2021 | Terms | Privacy | Sitemap | Site designed by Foremost Media® | Admin