Views: 0 Author: Site Editor Publish Time: 2026-10-15 Origin: Site
One aluminum coil, three practical applications. Dingang 3105-H24 color coated aluminum coil is designed for manufacturers producing corrugated roofing sheets, rain gutters, and channel letter signs. It combines a lightweight aluminum substrate with a painted surface, helping fabricators achieve consistent profiles and an attractive finish.
The right specification depends on how the coil will be formed, where the finished product will be installed, and what surface performance the project requires.
3105 is a manganese-containing aluminum alloy commonly used in building products and sign-making applications. The H24 temper is strain-hardened and partially annealed, offering a balance of strength and formability for suitable fabrication processes.
Lightweight material: Helps reduce the weight of finished building and decorative components.
Good formability: Suitable for many roll-forming, bending, and profile-making operations when the thickness and design are appropriate.
Corrosion resistance: Aluminum offers natural corrosion resistance, while the paint system provides additional surface protection.
Consistent appearance: Color coating supports a uniform finish across roofing, drainage, and signage products.
Corrugated roofing production requires coil that can pass through forming equipment while maintaining the intended profile. 3105-H24 can be considered for roofing sheets where the selected thickness, temper, and coating system match the design and installation conditions.
Substrate thickness and width for the required roof profile.
Coating type based on UV exposure, rainfall, temperature, and expected service conditions.
Coating flexibility to reduce the risk of cracking during roll forming.
Color and gloss consistency when multiple coils are used on the same project.
For outdoor roofing, PE and higher-weatherability coating systems may suit different project requirements. The choice should be based on the actual coating specification rather than the coating name alone.
Gutters and downspouts need to be formed into channels and bends while retaining their shape during installation. 3105-H24 is used in aluminum gutter applications because it offers a useful balance of strength, workability, and corrosion resistance.
Forming performance: Confirm that the temper and thickness suit the gutter profile and bending process.
Outdoor coating: Select a coating system appropriate for local weather and color-retention requirements.
Surface protection: Proper packaging and handling help prevent scratches and marks before fabrication.
Color matching: Important when gutters, fascia, trim, and roofing accessories must coordinate visually.
For gutter manufacturers, the lowest price per ton is not always the lowest production cost. Coil consistency, forming results, and coating quality also affect material waste and finished-product appearance.
Channel letter signs use formed metal components to create three-dimensional letters and logos. Prepainted aluminum coil can help sign manufacturers achieve a finished color without painting every component after fabrication.
Coating flexibility: The paint system should suit the bending radius and fabrication method.
Color availability: Matching brand colors is important for retail signs, storefronts, and commercial displays.
Surface quality: Scratches, dents, and visible coating defects can affect the final sign appearance.
Coil dimensions: Select the width and thickness according to the sign-making equipment and letter design.
Before ordering, sign manufacturers should test a sample using their actual bending and fabrication process, especially for narrow profiles or tight curves.
There is no single thickness or coating specification that fits every roofing, gutter, and signage project. Confirm the following details before requesting a quotation.
Specification | Why It Matters |
|---|---|
Alloy and temper | Confirm 3105-H24 or the alternative required by your product design. |
Thickness and width | Must match the forming equipment, profile geometry, and finished-product requirements. |
Coating system | Choose according to outdoor exposure, color retention, flexibility, and budget. |
Color and gloss | Helps maintain a consistent appearance across production batches and components. |
Coating performance | Confirm adhesion, flexibility, and weathering requirements against the relevant technical specification. |
Packaging and coil dimensions | Support safe transport, storage, and efficient use on the production line. |
Dingang supplies color coated aluminum products for construction and decorative applications. We work with customers to clarify the required alloy, temper, dimensions, coating system, color, and end use before confirming product details.
Specification support for roofing, gutter, and signage applications.
Coating and color options subject to project requirements and availability.
Communication focused on helping buyers select suitable material for their processing needs.
Active after-sales support: when a product concern arises, we work with customers to understand the issue and find a practical solution.
Clear specifications help avoid mismatches between the ordered coil and the finished product. If you have a drawing, technical datasheet, or sample requirement, share it with our team for review.
It can be suitable for many corrugated roofing applications, provided the thickness, coating, profile design, and service environment are properly matched.
Yes. 3105-H24 is commonly used for aluminum gutter products. The final specification should account for the required profile, thickness, coating, and local weather conditions.
It can be used for suitable sign-making applications. Confirm coating flexibility and test the material with the actual bending radius and fabrication process before full production.
The choice depends on whether your priority is initial cost, outdoor weatherability, color retention, or fabrication performance. Share the application and operating environment so the coating system can be evaluated accordingly.
Whether you manufacture corrugated roof panels, gutter systems, or channel letter signs, choosing the right coil specification can help improve production consistency and control material costs.
Contact Dingang with your required thickness, width, color, coating type, and application. Our team can help review the specification for your project.
