Aluminum Composite Material
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ALUMINUM COMPOSITE MATERIAL SUPPLIER

What Is Aluminum Composite Material?

Aluminum Composite Material (ACM) for household appliance panels — also often called Aluminum Composite Panel (ACP) — is a three-layer sandwich-structured composite material specially developed and optimized for the exterior and interior panels of home appliances.
It is composed of two thin, high-quality aluminum alloy sheets as the surface layers, bonded firmly to a lightweight core (usually polyethylene PE, fire-retardant PE, or mineral-filled core) under high temperature and pressure. The surface is further treated with color-coated PE or PVDF finish, and protected by PE film during production and transportation.
This material is designed to meet the strict requirements of the home appliance industry, including appearance, formability, corrosion resistance, safety, and cost efficiency. It is widely used for refrigerator doors, washing machine casings, microwave ovens, air conditioners, small kitchen appliances, and other appliance panel parts.

How to choose the Aluminum Composite Material (ACM) for Household Appliance Panels?

1) Select Core Material According to Appliance Function & Safety Requirements.

 
For ordinary household appliances with low heat and basic fire safety demands.
Suitable: Refrigerator shells, air conditioner panels, washing machine covers, small home appliances.

-Fire-Retardant PE (FR‑PE) Core
For electrical appliances that generate heat during operation. Meets B1 fire rating.
Suitable: Microwave ovens, ovens, dishwashers, range hoods.

-Mineral‑Filled / Non‑Combustible Core
For high‑temperature built‑in appliances requiring A2 or A1 fire resistance.

 

2) Choose Surface Coating Based on Appearance & Service Environment.

 

- PE Polyester Coating
Cost-effective, good color uniformity, suitable for indoor use.
Best for: Mass‑produced standard appliances, low‑humidity environments.

- Anti‑Fingerprint (AF) Coating
Oil‑repellent, easy to clean, reduces fingerprint visibility.
Best for: Refrigerator doors, washing machine front panels, high‑end appliances.

- High‑Hardness / Anti‑Scratch Coating
Improved abrasion resistance during transportation and stamping.
Best for: Appliance tops, side panels, high‑traffic surfaces.

- Food‑Safe Water-Based Coating
Low VOC, non‑toxic, meets FDA / GB 4806.9.
Best for: Kitchen appliances, food-contact areas, inner liners.
Suitable: Built-in ovens, high-power kitchen electrical appliances.

- Mineral‑Filled / Non‑Combustible Core
For high‑temperature built‑in appliances requiring A2 or A1 fire resistance.
Suitable: Built-in ovens, high-power kitchen electrical appliances.
 

3) Match Aluminum Alloy & Thickness to Processing & Structural Needs.

 
Alloy Selection
- 1060/3003: Good formability, low cost, ideal for stamping and bending.
- 3105: Higher rigidity, better flatness for large panels.
- 5052: High strength, corrosion resistance, for load-bearing appliance shells.

Panel Thickness
-under 0.5mm: Small appliances, lightweight parts.
-upper 0.5mm: Most mainstream appliance panels (refrigerators, washers, A/C units).

4) Confirm Performance Specifications Based on Working Environment.

 
-Kitchen & High‑Humidity Environments
Require salt spray resistance ≥ 1000 hours, good moisture and oil resistance.

-High‑Temperature Appliances
Ensure core and coating can withstand continuous thermal cycling without deformation or discoloration.

-Indoor Long‑Term Use
Prioritize color stability, coating adhesion (≥4B), and low warpage.
 
 

5) Comply with Household & Food‑Contact Safety Standards.

 
Select ACM certified to:
- FDA (food contact)
- EU REACH (low heavy metals)
- GB 4806.9 (food‑grade materials for kitchen appliances)
- GB 8624 (fire performance for electrical appliances)
 

6) Consider Production Compatibility & Cost Efficiency.

 
- If using automatic stamping / bending lines: Choose high formability ACM with flexible coating.
- For mass production: Select standard thickness, stable color, low scrap rate.
- For cost control: PE core + PE coating is the most economical solution.
- For high‑end positioning: Use anti‑fingerprint, metallic, or matte textured finishes.

7) Final Summary of Typical Matching Schemes.

 
-Refrigerator panels:  PE core, PE coating + anti‑fingerprint
-Washing machine shells: 3003/5052 alloy, high rigidity
- Oven/microwave panels: FR‑PE or mineral core, heat‑resistant coating
-Small kitchen appliances: food‑safe compliant coating
 
 
 
    bg4GENERAL PARAMETERS    bg4

Aluminum Composite Material (ACM) Specifications for Household Appliance Panel Production

Parameter Category

Parameter Item

Standard Specification

Household Appliance Scenario Customization Options

Core Material Composition

Aluminum Alloy Layer (Top/Bottom)

3003/3005/3105 (food-safe & corrosion-resistant grade)

5052 (high-strength for washing machine panels); 1060 (soft for small appliance parts)

Core Material

PE (polyethylene, cost-effective for general appliances)

FR-PE (fire-retardant, for ovens/microwaves); Mineral core (A1/A2 fire rating, high-temp appliances)

Coating Type

Polyester (PE, 18–25μm, cost-effective for indoor appliances)

PVDF (25–40μm, UV-resistant for outdoor/long-life appliances); Water-based PE (low-VOC for food-contact parts)

Protective Layer

PE protective film + waterproof paper + export carton packaging

Anti-fingerprint PE film (for refrigerators/washing machines); Anti-scratch coating (for frequent-touch panels)

Physical Properties

Panel Thickness

3mm (small appliances); 4mm (standard for large appliances); 5–10mm (heavy-duty panels)

Custom thickness (3–12mm) per appliance shell size

Unit Area Weight

≤6.0 kg/m² (3mm); ≤7.5 kg/m² (4mm); ≤9.0 kg/m² (5mm)

≤5.0 kg/m² (lightweight small appliances); ≤8.0 kg/m² (large appliances)

Density

1.3–1.4 g/cm³

1.25 g/cm³ (ultra-light for portable appliances); 1.45 g/cm³ (high-rigidity panels)

Thermal Conductivity

≤0.035 W/(m·K) (PE core); ≤0.03 W/(m·K) (mineral core)

≤0.03 W/(m·K) (refrigerators, energy-saving); ≤0.02 W/(m·K) (insulated oven panels)

Mechanical Performance

Bending Performance

Minimum bending radius = 2×panel thickness (no coating cracking/peeling)

1.5×thickness (for complex curved panels, e.g., washing machine drums)

Tensile Strength

≥120 MPa (aluminum layer)

≥150 MPa (5052 alloy, high-strength panels); ≥90 MPa (1060 alloy, soft panels)

Impact Resistance

≥4 J (drop weight test, GB/T 1043.1)

≥6 J (heavy-use appliances, e.g., dishwashers)

Household Appliance-Specific Performance

High-Temperature Resistance

≤120°C (PE core); ≤200°C (mineral core)

≤150°C (FR-PE core, microwave ovens); ≤250°C (mineral core, built-in ovens)

Corrosion Resistance

Salt spray resistance ≥1000h (GB/T 10125)

≥1500h (kitchen appliances, high humidity/acidic environment)

Food-Contact Safety

Complies with FDA 21 CFR, EU REACH, GB 4806.9

GB 4806.9 (strict food-contact grade for kitchen appliances)

Fire Rating

B1 (FR-PE core, GB 8624); A1/A2 (mineral core)

A2 (built-in ovens/microwaves); B1 (general household appliances)

Processing Adaptability

Processing Compatibility

CNC cutting, laser cutting, shearing, stamping, bending

Roll forming (for refrigerator door panels); Embossing (for textured surfaces)

Processing Waste Rate

≤3% (precision cutting)

≤2% (mass production optimization)

Forming Precision

±0.1mm (size tolerance)

±0.05mm (high-precision small appliances)

Quality & Compliance

Coating Adhesion

≥4B (cross-cut test, GB/T 9286-1998)

≥5B (high-adhesion coating for frequent-touch panels)

Color Consistency

ΔE ≤1.0 (batch-to-batch, Pantone/RAL matching)

ΔE ≤0.5 (brand-exclusive color panels)

Defect Rate

≤0.3% (finished product inspection)

≤0.1% (high-grade appliance panels)

Cost Optimization

Raw Material Cost Reduction

25–35% vs. solid aluminum sheets (less aluminum usage)

20–30% vs. stainless steel panels

Logistics Cost Reduction

30–50% vs. solid aluminum (lightweight)

20–40% vs. steel panels (lower density)

Tooling Life Extension

25–30% longer vs. solid aluminum (lower tooling wear)

30–35% vs. steel panels (softer material)
PRODUCT CENTER

Aluminum Composite Material (ACM) Products

PRODUCT TYPE

Types of Aluminum Composite Material (ACM)

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Heat Seal Lacquered Aluminum Foil

 
This type is primarily used as lidding material for food containers, where reliable sealing is required. It is widely applied in takeaway trays, ready meal packaging, airline catering, and pre-packed food containers. Its main function is to create a strong, leak-proof seal with PP, PS, or PET containers on automatic sealing lines.
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Easy Peel Lacquered Aluminum Foil

 
Easy peel foil is commonly used in retail-ready food packaging, where consumer convenience is important. It is ideal for ready meals, chilled food trays, and premium takeaway packaging, allowing end users to open the container smoothly without tearing the foil.
 
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Protective Lacquered Aluminum Foil

 
This type is used in applications where food protection and chemical resistance are critical. It is suitable for packaging acidic, salty, or oily foods such as sauces, marinated meals, and processed foods. The lacquer prevents direct reaction between aluminum and food.
 
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Single-Side Lacquered Aluminum Foil

 
Single-side coated foil is the most commonly used and cost-effective solution for standard food containers. It is widely applied in disposable takeaway trays, bakery containers, and general food packaging where only one functional side (sealing or food contact) is required.
 
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Embossed Lacquered Aluminum Foil

 
Embossed foil is widely used in applications that require higher rigidity and structural strength, such as oven trays and frozen food containers. The embossed surface improves anti-deformation performance and enhances the premium appearance of the packaging.
 
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Double-Side Lacquered Aluminum Foil

 
Double-side coated foil is used in more demanding environments where both sides require protection or functionality. It is suitable for high-humidity environments, long shelf-life packaging, or applications where both inner and outer surfaces need corrosion resistance.
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Printed Lacquered Aluminum Foil

 
Printed lacquered foil is mainly used in brand-oriented food packaging, where visual presentation plays a key role. It is suitable for retail food products, takeaway brands, and ready meal packaging that require logos, product information, or decorative designs.
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Laminated Lacquered Aluminum Foil

 
This structure is commonly used in high-performance food packaging, especially where additional strength and durability are required. It is suitable for vacuum packaging, export food containers, and heavy-duty trays that must withstand transportation and handling stress.

Can't Find Ideal Lacquered Aluminum Foils For Your Food Packages?

We provide custom solutions to all our customers and offer free lacquered aluminum foil samples that you can take advantage of.
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Features of Lacquered Aluminum Foil

Composite aluminum foil (also called laminated aluminum foil) is widely used in packaging and industrial applications because it combines aluminum with plastic films, paper, or other substrates. This multi-layer structure gives it properties that single-layer materials can’t achieve.:

  • Aesthetic Variety

    Color coated aluminum coils are available in a wide range of colors, shades, and finishes, allowing for creative design choices. This versatility makes them suitable for various architectural, decorative, and industrial applications.

  • Corrosion Resistance

    Aluminum itself is naturally corrosion-resistant due to its oxide layer. The additional coating enhances this property, making color coated aluminum coils suitable for outdoor applications, even in harsh environments.

  • Weather Resistance

    The combination of aluminum's inherent weather resistance and the protective coating ensures that color coated aluminum coils can withstand exposure to UV radiation, moisture, and temperature fluctuations without significant degradation.

  • Durability

    The paint or coating applied to the aluminum surface is designed to be durable, preventing chipping, fading, and cracking. This longevity reduces the need for frequent maintenance and replacement.

  • Lightweight

    Aluminum is a lightweight material, which contributes to easier handling, transportation, and installation of color coated aluminum coils, especially when compared to heavier materials like steel.

  • Form ability

    Aluminum is malleable and can be easily formed into various shapes without cracking or breaking. This property makes color coated aluminum coils suitable for intricate designs and curved surfaces.

  • Heat Reflectivity

    Aluminum has excellent heat reflectivity properties, contributing to energy efficiency by reducing heat absorption in buildings and structures.

  • Environmental Friendliness

    Aluminum is a recyclable material, and using color coated aluminum coils can contribute to sustainability efforts by reducing the need for new raw materials.

  • Low Maintenance

    The durable coatings on color coated aluminum coils require minimal maintenance over their lifespan. Regular cleaning with mild detergents can help retain their appearance.

  • Versatility

    Color coated aluminum coils find applications in a wide range of industries, including construction (roofing, cladding, facades), transportation (vehicle bodies, trailers), electronics, signage, and more.Color coated aluminum coils find applications in a wide range of industries, including construction (roofing, cladding, facades), transportation (vehicle bodies, trailers), electronics, signage, and more.

  • Ease of Installation

    Due to their lightweight nature, color coated aluminum coils are relatively easy to handle and install, reducing installation time and labor costs.

  • Customization

    Manufacturers can produce color coated aluminum coils with customized colors, thicknesses, and sizes, catering to specific project requirements.

  • Chemical Resistance

    The protective coatings on color coated aluminum coils can provide resistance against certain chemicals, further enhancing their durability in specific environments.

  • Non-Toxic

    Aluminum is a non-toxic material, making color coated aluminum coils suitable for applications that require materials with low toxicity levels, such as food packaging or medical equipment.

  • Cost-Effective

    The durability, low maintenance, and recyclability of color coated aluminum coils make them a cost-effective solution for various applications.

Advantages of Aluminum Composite Material (ACM)

Composite Aluminum Foil’s Application

Where Dingang’s Aluminum Composite Material 
Can Be Used In?
    bg4FACTORY TOUR  bg4

Welcome To Visit Dingang Composite Aluminum Composite Material's Production Lines

For the past decade,Dingang has been growing rapidly in the industry,owning two plants of 160,000㎡ with eight large automatic roller coating lines for aluminum and six for steel products.Over 700 skillful workers.In addition,we have stretching-bending rectifier,cleaning drawbench,embossing,cross-cutting and vertical slitting machines.

With near 20 years of professional metal coating experience,we have the ability to coat PE,PVDF and epoxy coating.We are also one of the few coating applicators that can replicates natural materials such as stones,marble,wood,terracotta,concrete and even rusted copper on the surface of metal with paint.
Pre-painted-Aluminum-Coating-Production-Line

Production Line

Registered Capital: 15 million US Dollar (Equivalent to 95 million Yuan).
Company Size: Covers an area of 160,000㎡.
Equipment and technology: Introducing Siemens electric control system in production lines.
Productive capacity: Eight pre-painted aluminum lines with output 150, 000 tons/year.Six full automatic color coating steel production lines with output of 450,000 tons/year;

OEM/ODM

No matter clients need us to make OEM or ODM,that's available to us.
Many clients from Euro,America,Canada,Austrila and other developed countries who hope us to produce the products with their own brand.We are very willing to cooperate with them and meet their's requirement.
Trust us and cooperate with us,our product and servise would make you satisfied.
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r-d

R&D

Dingang still believes the driving force of company's long term development comes from the cultivation of talents.That's why we pay huge attention to the cultivation of scientific and technological personnel.Every year we would recruit graduates from universities.
Now our group has more than 700 employees in our two factories.Most of them with diplomas over university's degrees.Including 38 engineers and 170 technician.

Education Of Degree

Number

Percentage

Master And Above

42

6%

Undergraduate

178

25%

Junior College

255

36%

Technical And Skill School

135

19%

Others

92

13%
In addition,Dingang annually spends more than 12% of total sales on research and development and technical personnel advanced study at home and abroad.

Cooperation Process

  • Step.1

    Enquiry Us With Spec Requirements

  • Step.2

    Offer Client With Quotation And Sample

  • Step.3

    Quotation & Sample Approved By Client

  • Step.4

    Payment Way & Lead Time Confirmed

  • Step.5

    Sales Contract Signed (Order Confirmed)

  • Step.6

    Bulk Production & Shipping Issue

  • Step.7

    Bulk Goods Delivering


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Frequently Asked Questions

We have compiled the most frequently asked questions about our color coated aluminums here for your convenience, but please feel free to contact us if you have any additional questions.

Aluminum Composite Material FAQ

  • Q Is your product compatible with automatic sealing machines?

    A  Yes. Our lacquered aluminum foil is designed for high-speed automatic sealing lines, ensuring consistent sealing performance and efficiency.

  • Q Do you support custom development for new packaging solutions?

    A  Yes. We work closely with customers to develop customized foil structures and coatings tailored to specific applications and market requirements.

  • Q Can you provide samples for testing?

    A  Yes. We can provide free stock samples or customized samples for sealing and compatibility testing.

  • Q What is the lead time for production?

    A 30-60days according to different specification.

  • Q What is your minimum order quantity (MOQ)?

    A MOQ depends on specifications such as thickness, coating type, and printing requirements. Standard products have lower MOQ, while customized products may require higher volumes.

  • Q Do you offer single-side or double-side coating?

    A Both options are available. The choice depends on your application, sealing requirements, and whether both sides need protection or functionality.

  • Q Is it suitable for frozen and ready meal packaging?

    A Yes. Lacquered aluminum foil performs well in both frozen and ready meal applications due to its excellent barrier properties and temperature resistance.

  • Q What thickness is recommended for food container applications?

    A The most commonly used thickness ranges from 30μm to 80μm, depending on the container type and application. Thicker foil provides better strength, while thinner foil is more cost-effective.

  • Q Can the foil be printed with custom designs?

    A Yes. Lacquered aluminum foil supports high-quality gravure printing, allowing for custom branding, logos, and multi-color designs to enhance product presentation.

  • Q What is the difference between lacquered and coated aluminum foil?

    A   “Lacquered aluminum foil” refers specifically to foil coated with a thin lacquer layer for protection or sealing. “Coated aluminum foil” is a broader term that may include PE, PP, or other functional coatings. In many cases, lacquered foil is used for heat sealing and food protection.

  • Q Does the lacquer coating affect the taste or smell of food?

    A  No. High-quality food-grade lacquer coatings are designed to be neutral and non-reactive, ensuring that they do not affect the taste, aroma, or quality of the food.

  • Q What temperature can lacquered aluminum foil withstand?

    A  Lacquered aluminum foil is typically suitable for high-temperature applications, including oven use. The exact temperature resistance depends on the coating type, but it generally performs well in cooking, baking, and reheating conditions.

  • Q Is lacquered aluminum foil safe for direct food contact?

    A Yes. Food-grade lacquered aluminum foil complies with international food safety regulations such as FDA and EU food contact standards. Certification and test reports can be provided upon request.

  • Q What types of coatings are available?

    A
    Common coating options include:
     
    Heat seal lacquer (for PP, PS, PET compatibility)
    Protective lacquer (anti-corrosion)
    Release coating (easy peel applications)
     
    Custom coating formulations are available depending on your application.

  • Q Can lacquered aluminum foil be heat sealed to plastic containers?

    A Yes. Lacquered aluminum foil can be heat sealed to containers made of PP, PS, PET, or coated paper, depending on the lacquer formulation. The sealing strength and temperature range can be customized based on your packaging line requirements.

  • Q What is lacquered aluminum foil used for in food containers?

    A Lacquered aluminum foil is primarily used as a lid material or sealing layer for disposable food containers. The lacquer coating enhances heat sealability and prevents direct contact between aluminum and food, making it ideal for ready meals, takeaway trays, and airline catering applications.

  • Q Can you provide samples?

    A Yes.

  • Q How do you ensure product quality?

    A
    We implement strict quality control throughout the production process, including:
     
    Raw material inspection
    Online production monitoring
    Final product testing (barrier, sealing strength, thickness, etc.

  • Q What printing options are available?

    A We offer high-quality gravure printing, supporting up to 10 colors or more depending on requirements. Matte, glossy, and metallic finishes are available to enhance brand presentation.

  • Q Can you customize the material structure for specific applications?

    A Yes.

  • Q What thickness options do you offer?

    A Aluminum foil thickness typically ranges from 6μm to 30μm, while the total laminate thickness can be customized depending on the application. We can tailor both individual layer thickness and overall structure.

  • Q What is composite aluminum foil?

    A Composite aluminum foil is a multi-layer laminated material that combines aluminum foil with plastic films (such as PET, BOPP, PE, or Nylon) and sometimes paper. It is designed to provide excellent barrier properties, mechanical strength, and heat sealability for various packaging and industrial applications.

Factory FAQ

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We help you avoid the pitfalls to delivery the quality and value your aluminum  need, on-time and on-budget.

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    joey@cnchangsong.com
    +86-18602595888
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    Chaoyang road, Konggang economic development area, Lianshui, Huai'an city, Jiangsu,China
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