Coated Aluminium Coil for Channel Letter
Walking through urban shopping districts or along the streets, the uniquely shaped and vibrantly colored storefront signs always catch your eye—and the key material that supports these visually arresting displays is aluminum coil.
1. Coating
Coatings act like a protective layer of the aluminium coil for channel letter, protecting them from corrosion while maintaining their aesthetic appeal. The performance differences between different coatings directly impact the lifespan and application scenarios of channel letters.
Polyester coating (PE): The most commonly used base coating, it offers high cost-effectiveness and strong color adhesion. It resists daily UV exposure and light rain erosion, making it suitable for indoor or semi-outdoor applications (such as shops in shopping malls and signs under awnings). Its color resists fading under normal use, and its moderate coating hardness prevents cracking during subsequent cutting and bending to create artistic lettering.
Fluorocarbon coating (PVDF): it is a fluorine-containing resin composition that resists corrosion from strong UV rays, high temperatures, high humidity, and even coastal salt spray. It maintains vibrant colors with virtually no signs of fading after 5-8 years of outdoor exposure. For large outdoor signs (such as office building exteriors or street-side storefronts), fluorocarbon coating is a surefire choice.
Wood/stone grain coating: A transfer printing process creates realistic wood and marble textures on the aluminum coil surface, making it ideal for creating retro or natural-themed art. The coating's delicate texture allows for a tactile undulation to the touch, creating a richer visual experience.
2. Specifications
Thickness: The mainstream range is 0.2mm-1.5mm. For small-sized channel letters, 0.2-0.5mm is sufficient, as it is lightweight and easily shaped. For large-sized art letters (such as outdoor signs over 3 meters long), 0.8-1.5mm is recommended, as it provides sufficient support for the letterform structure and prevents deformation in the wind.
Width: Standard widths are 1220mm and 1500mm, and some manufacturers can customize widths up to 2000mm.
Length: Typically supplied in aluminum strips for sale, ranging from 10 to 50 meters per roll, it can be cut to meet specific needs, minimizing material waste.
3. Popular colors
Low-saturation Morandi colors: Haze blue, soft mist pink, and light gray-purple, with their inherently gentle effect, are suitable for businesses focused on a "healing" atmosphere.
Metallic colors: Aluminum gold strips has an inherently luxurious feel. Whether it's for high-end restaurants, jewelry stores, or office lobby lettering, metallic colors can enhance the quality of the design. The inherent reflective effect of the metallic coating makes it even more eye-catching when lit at night.
Highly saturated contrasting colors: Vibrant colors like bright red, yellow, and royal blue are ideal for eye-catching displays. Highly saturated colors are highly recognizable and quickly convey brand vitality.
Original source: https://www.aluminumstrip24.com/news/coated-aluminium-coil-for-channel-letter.html
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