Color-coated aluminum foil is a composite material with colored coating or polymer material coated on the surface of aluminum foil, combining the excellent performance of aluminum foil with the decorative and protective functions of coating. The following is a detailed introduction to color-coated aluminum foil:

1.Main features

Lightweight: The aluminum foil substrate is light in weight and easy to transport and install.

Corrosion resistance: The coating protects the aluminum foil from oxidation, acid and alkali erosion, and prolongs its service life.

Color diversity: A variety of colors, patterns (such as wood grain, stone grain) or metallic luster effects can be achieved through coatings.

Weather resistance: Some coatings (such as PVDF fluorocarbon coatings) have UV resistance and are suitable for outdoor use.

Environmental protection: Recyclable, some coatings are solvent-free and environmentally friendly materials.

Barrier properties: Aluminum foil itself has oxygen barrier, moisture resistance, light shielding and other properties.

2.Production process

Substrate treatment: Clean the surface of the aluminum foil and remove oil and oxide layer (commonly used chemical cleaning or electrolytic treatment).

Coating: Use roller coating, spraying or printing to apply primer and topcoat (such as polyester, epoxy, fluorocarbon, etc.).

Curing: The coating is firmly bonded to the aluminum foil through high-temperature baking.

Post-processing: Additional lamination, embossing and other processes may be used to enhance functionality or aesthetics.

3.Common application areas

Architectural decoration: curtain wall panels, ceilings, interior decorative panels (both beautiful and heat-insulating).

Packaging materials: high-end packaging for food, medicines, and cosmetics (must meet food-grade standards).

Electronic appliances: lithium battery soft packaging materials, electromagnetic shielding layers.

Industrial uses: pipe insulation, solar reflectors, signs and labels.

Household items: oven linings, baking molds, decorative veneers.

4.Classification and specifications

By coating type: polyester (PE), fluorocarbon (PVDF), acrylic (Acrylic), etc.

By aluminum foil thickness: common 0.02mm~0.2mm, coating thickness is usually 10~30μm.

Special types: functional products such as antibacterial coating, antistatic coating, self-cleaning coating, etc.