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In modern fields such as architectural decoration, industrial manufacturing, household articles, and public facilities, 304 stainless steel plates are extensively applied owing to their outstanding corrosion resistance, favorable mechanical properties, high strength, and elegant appearance. Nevertheless, while 304 stainless steel plates without surface treatment possess basic performance, they feature a monotonous surface texture, are prone to fingerprint and scratch retention, and may undermine the overall visual effect in specific environments. Consequently, conducting appropriate surface treatment on 304 stainless steel plates is of great significance. Common surface treatment processes include brushing, mirror finishing, and sandblasting, which not only enhance the aesthetic appeal of stainless steel plates but also improve their functionality. Then, in practical applications, which surface treatment method is more suitable? And how should the selection be made based on specific requirements? HUA STEEL will conduct a detailed analysis from the perspectives of process principles, visual effects, applicable scenarios, maintenance, and other aspects to assist readers in making more rational decisions. 1. Overview of Surface Treatment Processes for 304 Stainless Steel Plates 1.1 Brushed Finish (Hairline Finish) Brushed finish is achieved by forming continuous and uniform fine lines on the stainless steel surface through mechanical means, typically via grinding along a fixed direction using abrasive belts or grinding wheels. This treatment method can effectively conceal minor surface scratches, enhance texture, and exhibits a certain anti-fingerprint effect. The brushed surface presents a soft metallic luster that is not glaring, characterized by a modern and industrial style. It is frequently utilized in elevator panels, kitchen appliances, interior decoration, office furniture, and other applications. 1.2 Mirror Finish Mirror finish is accomplished by subjecting the stainless steel surface to multiple high-precision polishing procedures, resulting in a mirror-like bright effect with extremely high reflectivity. Depending on the polishing degree, it can be classified into different grades such as 8K, 10K, and 12K; the higher the number, the clearer the mirror effect. Mirror stainless steel delivers a strong visual impact and can effectively expand the sense of space. It is commonly employed in high-end shopping malls, hotel lobbies, art installations, display cabinets, and other venues that require highlighting a sense of luxury and modernity. 1.3 Sandblasted Finish Sandblasted finish is realized by impacting the stainless steel surface with high-speed sand flow, creating a uniform matte frosted texture. This treatment method endows the surface with a fine granular feel, no light reflection, a soft touch, and excellent anti-slip and anti-fingerprint properties. Sandblasted stainless steel plates are often used in outdoor building curtain walls, subway platforms, public toilets, industrial equipment casings, and other environments with high demands for safety and weather resistance. 2. How to Select the Appropriate Surface Treatment Method? 2.1 Selection Based on Usage Environment – Interior decoration: For scenarios pursuing a modern and minimalist style, brushed finish is the preferred option, particularly suitable for elevator doors, wall decoration, furniture panels, and the like. For venues that need to create a luxurious atmosphere, such as shopping mall atriums and hotel lobbies, mirror finish offers a stronger visual impact. – Outdoor or high-humidity environments: Owing to its excellent weather resistance and anti-slip performance, sandblasted finish is more suitable for building exterior walls, canopies, bridge guardrails, and other structures. Meanwhile, its matte characteristic can reduce light pollution, conforming to the concept of environmentally friendly design. – High-touch areas: For handrails, button panels, public facilities, and other components that are frequently touched, it is recommended to select brushed or sandblasted finish. This avoids the accumulation of a large number of fingerprints and stains on the mirror surface due to frequent contact, which would otherwise impair the appearance. 2.2 Matching with Design Style – Industrial style and minimalist style: The metallic texture and sleek lines of brushed finish are perfectly compatible with these styles, enabling it to highlight the modern and technological sense of the space. – Luxury style and artistic style: Mirror finish can reflect the surrounding environment, enhance the transparency of the space, and is suitable for creating high-end commercial spaces or art installations. – Natural style and understated texture: The matte effect of sandblasted finish is similar to that of stone or frosted glass, making it suitable for projects that pursue an understated and restrained design style. 2.3 Consideration of Maintenance Costs and Service Life Although mirror finish boasts an elegant appearance, its maintenance cost is relatively high. It requires regular wiping with special cleaning agents; otherwise, it tends to lose its luster. In contrast, brushed and sandblasted finishes are relatively “stain-resistant,” with simple daily maintenance. They can maintain a good appearance even after long-term use, making them suitable for projects with limited budgets or inconvenient maintenance conditions. In conclusion, there is no absolute “best” surface treatment for 304 stainless steel plates; the core lies in “appropriateness.” Brushing, mirror finishing, and sandblasting each have their own advantages. When making a selection, comprehensive consideration should be given to factors such as the application scenario, design requirements, maintenance costs, and budget. In practical engineering projects, a combination of multiple treatment processes can even be adopted—for instance, using local mirror accents with a large-area brushed background. This approach not only highlights key elements but also ensures overall coordination. Making a proper selection of the surface treatment method can not only enhance the practical value of 304 stainless steel plates but also endow them with unique aesthetic charm, thereby achieving the perfect integration of functionality and artistry. #HAIRLINEBRUSHED #MIRRORSHEET #SANDBLASTPLATE #STAINLESSSTEELPLATE