Metal products in the construction and building materials industry, such as steel structures, fasteners, door and window hardware, curtain wall supports, and roofing systems, are exposed to the atmosphere for long periods, facing severe tests from rain, UV rays, salt spray, etc. The core goal of their Surface treatment is to provide long-term anti-corrosion protection for decades, while also taking into account aesthetic and decorative aspects.
Hot-dip galvanizing is the standard anti-corrosion process for large steel structures, while electrogalvanizing is the preferred choice for standard parts like bolts, nuts, and connectors. Xinfuhua’s alkaline zinc brightener and acid zinc brightener can produce fine-crystallized, uniformly glossy zinc coatings. Subsequently, passivation treatment with trivalent blue zinc and trivalent color zinc not only generates a dense passivation film on the zinc layer, greatly enhancing its Corrosion Resistance (e.g., neutral salt spray test can reach hundreds of hours or more), but also provides aesthetically pleasing options like blue, color, and black, which can match the overall design tone of the building.
For high-end architectural door and window hardware, railings, decorative strips, etc., the requirements for aesthetics are higher. Brass tin brightener can provide an imitation gold effect, long-lasting pearl nickel provides an elegant matte satin effect, and trivalent black chromium can provide a highly modern deep black surface. Copper anti-tarnish agent can be used to protect copper pipes and hall decorations inside buildings, preventing them from dulling due to oxidation. Xinfuhua’s Environmentally Friendly passivation products are “compliant with EU ROHS directives,” solving the pollution problems of traditional hexavalent chromium passivation processes, allowing buildings to have beautiful appearances while practicing green environmental building concepts.
Email:fuhuaguoji@yeah.net
Address: Room 2101, Building 1, Hegushan Huicheng, No. 35, Guangtian Road, Bao 'an District, Shenzhen City, Guangdong Province （Office Space）
Copyright © 2025 Shenzhen Xinfuhua Surface Technology Co., Ltd. All rights reserved seo:hzw
SitemapThis website uses cookies to ensure you get the best experience on our website.
Phone
Comment
（0）