When specifying aluminum composite panels (ACP) for a façade, signage system, or interior fit-out, one of the most common questions architects, contractors, and procurement teams ask is whether a 3mm أو 4mm panel is the better choice. The answer depends less on a fixed rule and more on project requirements, aluminum skin thickness, finish, and the application environment. JIASHUNCAI, the international brand of شركة فوشان جياشونكاي لمواد البناء المحدودة, manufactures both thicknesses as part of its standard ACP/ACM product range, giving buyers a clear basis for comparison before placing an order.
Understanding the Thickness Options Available
According to the company's core technical specifications, common panel thicknesses include 3 mm, 4 mm, 5 mm, and 6 mm, with a standard panel dimension of 1220 × 2440 mm. Beyond total panel thickness, the aluminum skin thickness is a separate variable that buyers should evaluate alongside the core thickness. JIASHUNCAI offers aluminum skin thickness options of 0.12 mm, 0.15 mm, 0.20 mm, 0.30 mm, 0.40 mm, and 0.50 mm, meaning a 3mm panel and a 4mm panel can each be configured with different skin thicknesses depending on the project's structural and finish requirements. Additional dimensions and specifications are available according to customer and project requirements, and customized dimensions can be discussed directly with the factory.
This means the "3mm vs 4mm" decision is not purely about the overall panel thickness number — it is part of a broader specification conversation that also includes aluminum skin thickness, coating system, color, surface finish, and the intended use of the panel.
Quality Verification for Both 3mm and 4mm Panels
One practical concern buyers raise when comparing panel thicknesses is whether each option has been properly tested and documented. JIASHUNCAI has completed relevant 3mm and 4mm ACP/ACM product testing and obtained corresponding test reports, including an ILAC-MRA and CNAS related 4MM ACP/ACM Test Report and an ILAC-MRA and CNAS related 3MM ACP/ACM Test Report. These reports are generated through laboratories operating under ILAC-MRA and CNAS accreditation frameworks, giving project teams documented evidence for both thickness options rather than relying on assumptions about performance. This is particularly relevant for engineering customers who need supplier-qualification documentation, project-approval records, or customs-clearance support when importing either specification.
In addition to product-specific testing, JIASHUNCAI maintains an ISO 9001 Quality Management System Certification (Certificate Number: HG24Q0677R0S), which applies across its manufacturing process rather than to a single thickness, supporting consistency in production regardless of whether a customer orders 3mm, 4mm, 5mm, or 6mm panels.
Matching Panel Thickness to Application Needs
JIASHUNCAI's standard aluminum composite panels are positioned for a wide range of architectural, commercial, interior, exterior, signage, and decorative applications, with the four common thicknesses offered specifically to support standard application requirements. Because project requirements vary — from lightweight interior partitions and signage to exterior façade cladding — JIASHUNCAI supports evaluation of customer-specific technical requirements and project specifications before production. Customers can also submit drawings, technical specifications, bills of quantities (BOQ), physical samples, and color references, so the appropriate thickness, aluminum skin, and finish combination can be reviewed against the project's needs before an order is confirmed.
For projects where fire-performance requirements apply, JIASHUNCAI's fire-retardant and fire-rated product range — including B1 Fire-Retardant ACP و A2 Fire-Rated ACP — is available as well, supported by fire-performance testing and documentation separate from the standard PE and PVDF coated lines. This gives buyers a path to match not only thickness but also fire classification to their project's regulatory requirements.
Customization, Processing, and Project Support
Whichever thickness is selected, JIASHUNCAI's customization scope covers panel dimensions and thicknesses, aluminum skin thickness, coating systems and colors, surface finishes, fire-performance configurations, and grooving, bending, and CNC processing. This allows 3mm and 4mm panels alike to be fabricated for architectural façade, interior, signage, or engineering applications according to confirmed drawings and specifications. OEM/ODM and private-label cooperation is also available for qualified distributors, importers, and building-material companies that need a specific thickness and finish combination under their own branding.
Pricing, MOQ, Delivery, and Warranty Considerations
Pricing for both thicknesses falls within JIASHUNCAI's published factory-direct ranges, which vary by configuration: PE Aluminum Composite Panel pricing is approximately US$1.15–21.75 per m², while PVDF Aluminum Composite Panel pricing is approximately US$5.75–29.00 per m², both based on indicative RMB ranges and subject to the exact specification, quantity, and coating system ordered. The minimum order quantity for customized polyester-coated panels and customized PVDF-coated panels is 300 sheets, based on the standard size of 1220 × 2440 mm. Standard products are typically delivered in approximately 7–15 days, while customized decorative or film-coated panels require approximately 15 days, depending on color, film, and production requirements. Warranty terms are tied to the coating system rather than panel thickness: polyester-coated panels carry a 5-year warranty, PVDF/fluorocarbon-coated panels carry a 15-year warranty، و film-coated panels carry a 5-year warranty on the film layer.
Why JIASHUNCAI Is a Dependable Source for Either Thickness
Founded in 2003 in Foshan, Guangdong, China, شركة فوشان جياشونكاي لمواد البناء المحدودة, operating under the brand JIASHUNCAI, has built more than 20 years of aluminum composite panel manufacturing experience. The company operates three ACP/ACM production lines running continuously 24 hours a day, and has supplied solutions for 2,000+ projects, working with 50+ distributors و 100+ international trading companies, with products reaching customers in 80+ countries and markets. This manufacturing scale means that whether a project calls for 3mm or 4mm panels, JIASHUNCAI can support both recurring B2B orders and larger project volumes from the same integrated facility, backed by documented testing, ISO 9001 certification, and a consistent quality-inspection process covering incoming raw materials, in-process production, and pre-shipment checks.
خاتمة
There is no single answer to whether 3mm or 4mm aluminum composite panels are universally better for every project — the right choice depends on the aluminum skin thickness, coating system, fire-performance needs, and application environment specific to each project. What matters most is working with a manufacturer that can document and support both options equally. With tested and certified 3mm and 4mm ACP/ACM products, a broad customization scope, and over two decades of manufacturing experience, JIASHUNCAI provides buyers with the technical basis to make an informed, project-specific decision rather than a generic one.
