Production Principle
By utilizing the synergistic effect of multiple composite processes, first, a base color (such as bronze, copper, red bronze, etc.) is formed on the surface of the stainless steel through chemical coloring or copper plating. Then, by using local acid etching, electrolytic oxidation, hand painting and sandblasting techniques to create an aged effect, a faux antique effect with varying color depths and bumpy, worn textures is deliberately created. Through precise control of the concentration of the solution, coloring temperature (118℃ - 128℃), soaking time and hand polishing force, each sheet of material is given a natural, random and non-reproducible "patina" texture. Finally, after a sealing and color-fixing treatment, the aged textures are locked in, preventing further oxidation and corrosion, achieving stable color and lasting freshness.
The mainstream aging techniques can be classified into four categories:
Chemical oxidation method: Using acidic solutions (such as the chromium-sulfuric acid system) to induce controlled oxidation of chromium elements on the surface of stainless steel. By leveraging the principle of thin film interference, natural semi-transparent colors such as bronze and bronze can be formed. Then, through local manual polishing, the underlying metal luster is exposed, simulating the "natural patina" formed over hundreds of years;
Water-coated copper aging method: First, electrolytically coat the surface of stainless steel with a high-purity copper layer. Then, through sulfurization and blackening treatment, a dark copper sulfide layer is formed. Finally, by hand, the artisan performs wire drawing and polishing, partially removing the black color to reveal the gold-copper base color, presenting a black-gold interwoven wire-golden texture;
PVD coating + aging method: After forming a stable metal color layer through vacuum coating, combined with wire drawing or etching treatment to create oxidation and wear marks, the color is stable and has strong weather resistance, suitable for outdoor use and large-scale projects;
Wire drawing and color rubbing method: First, draw fine textures on the surface, then use manual color rubbing or immersion to deposit pigments in the texture grooves, forming worn aging effects with distinct layers and a retro style.
Core Advantages
Uniquely exquisite artistic texture: A combination of chemical aging and hand polishing creates a colorful and multi-layered effect. Each piece of the board has a random texture that cannot be replicated, presenting natural traces of time, with extremely high artistic decorative value.
Performance without compromise: The aging effect only affects the surface, while the strength and corrosion resistance of the stainless steel base material are completely preserved. It combines retro aesthetic appeal with metal practicality.
High cost-effectiveness with steel instead of copper: The appearance and texture are comparable to real copper plates, with a weight of only about one-third of pure copper, and the cost is significantly lower than pure copper. It is an ideal alternative material for historical building restoration and commercial projects.
Anti-rust, anti-corrosion, and weather-resistant: After closed color fixation treatment, a protective layer forms on the surface, resistant to corrosion, salt fog, and suitable for temperature differences of -40℃ to 80℃ and outdoor harsh environments.
Durable and scratch-resistant without peeling: The aging layer is cured and has strong adhesion (up to 5B grade), and it is not prone to fading or peeling during daily use, with a lifespan of up to several decades.
Rich colors and versatile styles: It can simulate various retro effects such as bronze artifacts, ancient copper artifacts, and aged ironwork, and is suitable for various design styles including European, American, industrial, and new Chinese styles.
Available Colors & Finishes
Colors: Red bronze, green bronze, yellow bronze, black bronze, aged bronze, aged champagne gold, aged rose gold, aged coffee color, aged gun gray, aged ink green, aged dark blue, aged black titanium, rust imitation, glittery aged, etc.; Customization based on samples is supported.
Materials: 201, 304, 316L, 430, etc. Customization is supported.
Sizes: Standard sizes include 1000×2000mm, 1219×2438mm, 1219×3048mm, 1500×3000mm, 1500×6000mm; Customization of non-fixed sizes is supported (the widest is approximately 1500mm, the longest is approximately 6000mm).
Thickness: 0.3mm to 4.0mm, customization is supported.
Surface treatments: Textured aging, random pattern aging, mirror aging, sandblasting aging, hammer pattern aging, etching aging, embossing aging, and patterned aging, etc.; Double-color gradient, imitation wood grain, raindrop pattern, etc. composite textures can be combined.
Application Scenarios
Building exterior: Antique facades, European architectural components, vintage storefronts and door frames, railings and handrails, cultural district landscape decorations;
Interior decoration: Retro bars and theme restaurants' walls, aged background walls for hotel lobbies, elevator carriages, partition screens, antique door and window frames, high-end bathroom decorations;
Commercial fixtures: Coffee shops, craft beer bars, theme restaurants, retro brand stores, jewelry and watch counters, museum displays and artifact display cases;
Home hardware: American/European retro furniture, wine cabinets and shelves, fireplace decorations, decorative handles, lighting frame, cabinet door panels;
Other fields: Antique art sculptures and handicrafts, cultural landscape projects, antique restoration of churches and historical buildings, film props and sets, outdoor metal art installations.