Import 3105 Coated Aluminum Sheet — Buy in wholesale FOB from Supplier in China

Mirach Metallurgy Co., Limited produces 3105 coated aluminum sheet with a painted or laminated organic coating applied to the substrate after mill pretreatment, targeting building envelope and interior decoration markets. The base alloy retains the 98% aluminum content and manganese strengthening of standard 3105, with coating systems typically comprising polyester, PVDF, or epoxy-polyester hybrids depending on end-use exposure requirements. Mirach's two-decade specialisation in this product line suggests process maturity in coil coating line operation, though buyers should confirm current coating line width capacity and cure oven temperature control records.

The coating application process involves alkaline degreasing, chromate or chrome-free conversion coating, primer application, topcoat deposition, and stoving at metal temperatures around 220-250°C for polyester systems, higher for PVDF multi-coat builds. Dry film thicknesses range from 18-40 micrometres for standard architectural applications, with colour matching to RAL or custom fan decks achievable within batch-to-batch limits. Substrate temper is typically H24 or H44 to provide sufficient yield strength for panel fabrication while maintaining enough ductility for minor radius bending during installation.

End-use applications focus on interior and exterior ceiling systems, facade cladding panels, column covers, and decorative soffit applications where colour stability and chalking resistance are priorities. The coated sheet format allows architects to specify metallic, solid colour, or wood-grain finishes with warranty periods against fade and film integrity. Import buyers should define coating class per EN 1396 or AAMA 2605 as applicable, request accelerated weathering test data, and confirm that Mirach's substrate pretreatment meets specified environmental compliance for the destination market.

Mirach Metallurgy Co., Limited operates from North Bank Sun Town in Chongqing, a major western Chinese manufacturing hub with established metals processing infrastructure. The company holds a Harbor trust tier on the platform, with response metrics currently showing zero recorded activity, suggesting limited recent enquiry flow or incomplete profile activation. No verification of ISO 9001, ISO 14001, or specific coating approvals such as Qualicoat or Qualideco appears in the available profile data.

The supplier's stated specialisation spans two decades in 3105 coated aluminum sheet production, with emphasis on construction and decoration applications. Mirach does not disclose production capacity, coating line count, annual throughput, or client reference projects in the visible information. Buyers should request evidence of coating system approvals, recent third-party test reports for colour fastness and adhesion, and clarification of whether Mirach operates its own coating line or sources pre-coated substrate from partner mills.