The Basics of Aluminum Foil Thickness

Manufactured in various thicknesses, typically measured in micrometers or mils. The thickness of aluminum foil varies widely. And manufacturers produce different thicknesses to meet specific needs. The most common thicknesses of aluminum foil are as follows:

Heavy-Duty Foil: Heavy-duty aluminum foil is thicker, usually around 18-25 microns (0.7-1 mil). This extra thickness provides enhanced durability, making it ideal for applications like grilling, baking in a campfire, or wrapping large roasts and turkeys.

Extra Heavy-Duty Foil: Extra heavy-duty aluminum foil, with a thickness of 30 microns (1.2 mils) or more. It is designed for the most demanding applications. It can withstand high temperatures, prolonged exposure to heat. And often used in commercial kitchens and industrial settings.

Impact on Cooking and Baking

The thickness of aluminum foil is a crucial factor in cooking and baking. Thinner foils are more pliable, which makes them suitable for wrapping and sealing food. Thicker foils, on the other hand, are better at withstanding high temperatures, which is essential for grilling, broiling, and other intense cooking methods.

Wrapping and Covering: Standard household foil is ideal for wrapping sandwiches. There covers dishes. And sealing in the freshness of leftovers. Its flexibility allows for easy shaping and folding.

Baking and Roasting: Heavy-duty foil is preferred for applications. Like baking or roasting because it can withstand higher temperatures without tearing or melting. It’s an excellent choice for creating foil packets or wrapping large cuts of meat.

Grilling and Broiling: Extra heavy-duty foil is best for grilling and broiling as it can endure the intense heat of open flames and grates. It prevents food from sticking and provides a protective barrier.

Non-Culinary Applications

Beyond the kitchen, the thickness of aluminum foil also plays a vital role in various non-culinary applications, including:

Electronics: Used in electronics for applications such as capacitors and electromagnetic shielding.

Art and Crafts: Aluminum foil of various thicknesses is a favorite material for artists and crafters, allowing them to create a wide range of projects.

Choosing the Right Thickness

Selecting the right thickness of aluminum foil depends on the intended use. For everyday cooking and food storage, standard household foil is suitable. If you plan to use it for grilling, heavy-duty foil is your best bet. And for industrial or heavy-duty applications, extra heavy-duty foil is the way to go.

Factors

The thickness of aluminum foil is a critical factor that determines its performance and suitability for various applications.

Aluminum Foil Thickness

Aluminum foil is used in many industries. It is found in food packaging, pharmaceutical packaging, household products, insulation, cables, air conditioning systems, and industrial materials. However, not all aluminum foil has the same thickness. Different applications need different foil thicknesses.

Choosing the right aluminum foil thickness is important. Thin foil is flexible and easy to fold. Thicker foil offers better strength and protection. The correct choice also depends on the alloy, temper, surface finish, and final use.

What Is Aluminum Foil Thickness?

Aluminum foil thickness refers to the distance between the two surfaces of the foil. It is normally measured in millimeters (mm), micrometers (μm), or millimeters with decimal values.

One millimeter equals 1,000 micrometers. For example, 0.01 mm is equal to 10 μm.

Common Aluminum Foil Thickness Units

Unit	Equivalent
1 mm	1,000 μm
0.1 mm	100 μm
0.05 mm	50 μm
0.02 mm	20 μm
0.01 mm	10 μm
0.006 mm	6 μm

For international orders, buyers should confirm the required unit before placing an order. A small difference in thickness can affect weight, flexibility, strength, and material cost.

Common Aluminum Foil Thickness Range

Foil Thickness	Thickness in Microns	Typical Applications
0.006 mm	6 μm	Thin packaging and laminated materials
0.008 mm	8 μm	Flexible packaging
0.009 mm	9 μm	Household foil
0.012 mm	12 μm	Food packaging
0.015 mm	15 μm	Flexible packaging and wrapping
0.018 mm	18 μm	Food and pharmaceutical packaging
0.020 mm	20 μm	Household and packaging foil
0.025 mm	25 μm	Pharmaceutical and industrial packaging
0.030 mm	30 μm	Blister packaging and laminated foil
0.040 mm	40 μm	Industrial packaging
0.050 mm	50 μm	Cable and insulation materials
0.080 mm	80 μm	Heat insulation and industrial use
0.100 mm	100 μm	Container and industrial foil
0.150 mm	150 μm	Heavy-duty packaging
0.200 mm	200 μm	Industrial and technical applications

These are common reference values, not fixed limits. Actual thickness ranges depend on the product type, alloy, production process, and customer requirements.

Aluminum Foil Types by Thickness

Thin Aluminum Foil: 0.006–0.015 mm

Thin aluminum foil is lightweight and flexible. It can be folded, laminated, and formed into different packaging structures.

Common products include:

• Flexible food packaging foil
• Chocolate and confectionery wrapping foil
• Laminated packaging foil
• Household wrapping foil
• Thin foil for composite materials
• Decorative packaging foil

Thin foil is often combined with paper, plastic film, or other materials. This helps improve packaging strength and product protection.

Medium Aluminum Foil: 0.016–0.050 mm

Medium-thickness foil offers a balance between flexibility and mechanical strength. It is suitable for many packaging and industrial applications.

Common products include:

• Pharmaceutical blister foil
• Aluminum lid foil
• Yogurt and dairy container foil
• Cable wrapping foil
• Food container foil
• Flexible duct foil
• Industrial laminated foil

This thickness range is useful when the final product needs better handling strength but still requires good forming performance.

Thick Aluminum Foil: 0.051–0.200 mm

Common products include:

• Heavy-duty food container foil
• Industrial insulation foil
• Cable shielding foil
• Transformer and electrical materials
• Air conditioning components
• Technical aluminum foil
• Industrial packaging materials

Thicker foil may require different rolling and forming conditions. Buyers should confirm the required mechanical properties with the supplier.

Aluminum Foil Thickness for Different Applications

The correct thickness depends on the final product. The following sections show common applications and useful thickness references.

Household Aluminum Foil

Common thickness options include:

Thickness	Typical Use
0.009 mm	Light household wrapping
0.010 mm	General food wrapping
0.012 mm	Kitchen and catering use
0.015 mm	Stronger food wrapping
0.020 mm	Heavy-duty household foil
0.025 mm	Professional food service

Household foil is commonly produced from 8011 or 1235 aluminum alloy. The O temper is widely used because it provides good flexibility and formability.

Typical applications:

• Wrapping sandwiches and snacks
• Covering food during storage
• Baking and roasting
• Restaurant food preparation
• Catering and takeaway packaging
• Freezer food protection

For heavy food wrapping, a thicker option may be more suitable. For general kitchen use, thinner foil can reduce material consumption.

Pharmaceutical Aluminum Foil

Common thickness options include:

Thickness	Microns	Typical Use
0.020 mm	20 μm	Pharmaceutical packaging structures
0.023 mm	23 μm	Blister packaging
0.025 mm	25 μm	PTP blister foil
0.030 mm	30 μm	Pharmaceutical packaging
0.040 mm	40 μm	Special packaging structures

8011 and 8079 are common alloy choices for pharmaceutical foil. The exact alloy and temper depend on whether the material is used as hard foil, soft foil, or part of a laminated structure.

Typical applications:

• Tablet blister packaging
• Capsule packaging
• Medicine packaging lids
• Pharmaceutical laminated materials
• Medical product packaging

For blister foil, buyers should consider more than thickness. Pinholes, surface quality, coating compatibility, tensile strength, and sealing performance are also important.

Aluminum Foil for Food Containers

Thickness	Typical Application
0.040 mm	Light packaging structures
0.050 mm	Small food containers
0.060 mm	Disposable food trays
0.070 mm	Medium-duty containers
0.080 mm	Stronger food containers
0.100 mm	Heavy-duty trays
0.120–0.200 mm	Industrial and special containers

3003 and 8011 are among the alloy options used for aluminum container products. The selected alloy depends on the forming process and container design.

Typical applications:

• Airline meal trays
• Takeaway food containers
• Baking trays
• Restaurant food boxes
• Ready-meal packaging
• Catering containers

A thicker material can improve rigidity, but it also increases material weight and cost. Container producers should test the final design before choosing a production specification.

Aluminum Foil for Cable Wrapping

Thickness	Typical Application
0.020 mm	Thin laminated cable foil
0.025 mm	Communication cable materials
0.030 mm	Cable shielding
0.040 mm	Electrical cable wrapping
0.050 mm	Industrial cable applications
0.080 mm	Special cable structures
0.100 mm	Heavy-duty technical applications

Common alloy options include 1235, 8011, and other grades selected according to the cable design.

Typical applications:

• Communication cables
• Coaxial cables
• Data transmission cables
• Power cable components
• Electrical shielding materials
• Cable insulation structures

The foil thickness should match the cable structure. Conductivity, flexibility, bonding performance, and resistance to cracking are also important.

Aluminum Foil for Air Conditioning and HVAC

Thickness	Typical Product
0.080 mm	Thin fin stock
0.100 mm	Air conditioning fin material
0.110 mm	Heat exchanger foil
0.120 mm	HVAC fin stock
0.150 mm	Stronger fin material
0.200 mm	Special industrial components

Common alloy choices include 1100, 1200, 3003, and other grades according to the required performance.

Typical applications:

• Air conditioner fins
• Heat exchanger components
• Refrigeration equipment
• Condenser and evaporator fins
• HVAC insulation materials

For fin stock, thickness consistency is important. Surface cleanliness, corrosion resistance, and forming performance should also be considered.

Aluminum Foil for Insulation

Common thickness options include:

• 0.006–0.010 mm for lightweight laminated structures
• 0.012–0.020 mm for flexible insulation products
• 0.025–0.050 mm for stronger insulation facing
• 0.060–0.100 mm for selected industrial insulation uses

Typical applications:

• Roof insulation
• Wall insulation
• Pipe insulation
• HVAC duct insulation
• Industrial thermal insulation
• Reflective insulation systems

The performance of an insulation product depends on the full structure, not only the aluminum foil thickness. The air gap, facing material, installation method, and product design also matter.

Aluminum Foil Alloys and Their Characteristics

Aluminum foil is available in different alloy grades. Each alloy has its own properties. Buyers should select the grade according to the final application and production process.

Alloy	Main Characteristics	Common Applications
1050	High aluminum content, good formability	General foil and electrical uses
1060	Good corrosion resistance and conductivity	Electrical and industrial foil
1100	Good formability and corrosion resistance	Food and technical products
1235	Excellent flexibility and rolling performance	Flexible packaging
3003	Good strength and formability	Containers and technical foil
3004	Good strength and deep-drawing performance	Food containers
8011	Good packaging and forming performance	Household and pharmaceutical foil
8079	Good flexibility and barrier packaging performance	Pharmaceutical and flexible packaging

8011 Aluminum Foil

Common applications include:

• Household aluminum foil
• Food packaging foil
• Pharmaceutical packaging
• Container foil
• Cable foil
• Industrial packaging

Typical thickness range: 0.006–0.200 mm.

1235 Aluminum Foil

1235 aluminum foil is commonly used in flexible packaging. It has high aluminum content and good rolling performance.

Typical applications include:

• Flexible packaging
• Laminated foil
• Food packaging
• Decorative packaging
• Household foil

It is a suitable option when flexibility and thin-gauge production are important.

8079 Aluminum Foil

Typical applications include:

• Pharmaceutical blister structures
• Flexible packaging
• Laminated packaging
• Food packaging materials

The final alloy selection should be based on the customer’s packaging structure and quality requirements.

3003 and 3004 Aluminum Foil

3003 and 3004 belong to the 3xxx aluminum alloy series. They have used in products that need suitable strength and forming performance.

Typical applications include:

• Aluminum food containers
• Foil trays
• Industrial components
• Heat exchange products
• Special formed packaging

3004 has often considered for applications requiring stronger forming performance, while 3003 has also used for general-purpose formed products.

Aluminum Foil Temper and Its Effect on Thickness Selection

Temper	Description	Common Applications
O	Fully annealed and soft	Household foil and deep forming
H14	Half hard	Semi-rigid products
H16	Three-quarter hard	Technical foil
H18	Full hard	Stronger packaging and industrial foil
H19	Extra hard	Special technical applications
H22	Strain hardened and partially annealed	Formed products
H24	Strain hardened and partially annealed	Containers and industrial products
H26	Harder partially annealed condition	Special formed applications

O temper has often selected for products that need high flexibility. H18 and H19 are harder conditions and may be suitable for applications that need higher strength.

Not every alloy and thickness is available in every temper. Buyers should confirm the available combination before ordering.

Aluminum Foil Thickness Comparison: Thin vs. Thick

Choosing between thin and thick foil is an important purchasing decision. Each option has advantages and limitations.

Comparison	Thin Foil	Thick Foil
Typical Thickness	0.006–0.020 mm	0.050–0.200 mm
Weight	Lower	Higher
Flexibility	Very good	Depends on temper
Strength	Lower	Generally higher
Forming	Easy to fold and laminate	Suitable for stronger structures
Material Cost	Lower per unit area in many cases	Usually higher per unit area
Main Uses	Flexible packaging	Containers and industrial uses

When Should You Choose Thin Aluminum Foil?

It is commonly used for:

• Food wrapping
• Flexible packaging
• Laminated packaging
• Household foil
• Lightweight insulation facing

When Should You Choose Thick Aluminum Foil?

Thicker foil is useful when the final product needs more strength or rigidity.

It is commonly used for:

• Food containers
• Cable protection
• Industrial insulation
• Technical components
• Special packaging products

The best thickness is not always the thickest one. Buyers should choose a specification that meets the actual performance requirements without adding unnecessary material cost.

Aluminum Foil vs. Aluminum Sheet: What Is the Difference?

Feature	Aluminum Foil	Aluminum Sheet
Thickness	Commonly 0.006–0.200 mm	Usually thicker than foil
Flexibility	High, depending on temper	Lower in most cases
Weight	Lightweight	Higher for the same area
Processing	Rolling, laminating, wrapping	Cutting, bending, stamping
Common Uses	Packaging and insulation	Construction and fabrication

Aluminum foil is more suitable for flexible packaging and thin technical materials. Aluminum sheet is better for structural, decorative, and fabrication applications.

Aluminum Foil vs. Aluminum Film

Aluminum foil and aluminum film are not the same material. Aluminum foil is made from rolled aluminum metal. Aluminum film usually refers to a plastic film with a metallic appearance or a thin deposited aluminum layer.

Feature	Aluminum Foil	Metallized Film
Material	Aluminum metal	Usually plastic film with a thin aluminum coating
Structure	Solid metal layer	Very thin deposited metal layer
Flexibility	Depends on thickness and temper	Usually very flexible
Barrier Performance	Strong metal barrier	Depends on coating quality
Applications	Containers, foil packaging, insulation	Flexible packaging and decorative products

For projects that require a real metal layer, aluminum foil may be the better option. For lightweight packaging structures, metallized film may be suitable.

How to Calculate Aluminum Foil Weight

Thickness affects the weight of aluminum foil. Buyers can estimate the theoretical weight by using the material density and product dimensions.

For example, a roll with the following dimensions:

• Thickness: 0.02 mm
• Width: 1,000 mm (1 m)
• Length: 1,000 m

The theoretical weight is:

0.02 × 1 × 1,000 × 2.70 = 54 kg

This is an estimated material weight. Actual roll weight may vary because of thickness tolerance, core weight, and production conditions.

Theoretical Aluminum Foil Weight by Thickness

The following table shows the approximate weight per square meter.

Thickness	Approximate Weight per m²
0.006 mm	0.0162 kg
0.008 mm	0.0216 kg
0.010 mm	0.0270 kg
0.012 mm	0.0324 kg
0.015 mm	0.0405 kg
0.020 mm	0.0540 kg
0.025 mm	0.0675 kg
0.030 mm	0.0810 kg
0.040 mm	0.1080 kg
0.050 mm	0.1350 kg
0.080 mm	0.2160 kg
0.100 mm	0.2700 kg
0.150 mm	0.4050 kg
0.200 mm	0.5400 kg

This table is useful for estimating material consumption, shipping weight, and purchasing quantities.

Aluminum Foil Surface Finishes and Product Forms

Common Surface Options

Mill Finish Aluminum Foil

This is the standard rolled surface. It has widely used for packaging, industrial processing, and laminated products.

One-Side Bright Aluminum Foil

One surface has a brighter appearance. It has uses in products that need a specific visual or processing surface.

Double-Side Bright Aluminum Foil

Both surfaces have a bright appearance. It has selected for decorative or special packaging requirements.

Lacquered Aluminum Foil

The foil surface is coated with a suitable lacquer. The coating can support printing, sealing, or product-specific requirements.

Embossed Aluminum Foil

The surface has a raised pattern. It has uses for decorative and functional products, depending on the pattern and application.

Common Product Forms

• Aluminum foil rolls
• Jumbo aluminum foil rolls
• Household foil rolls
• Cut-to-length foil sheets
• Laminated aluminum foil
• Coated aluminum foil
• Embossed aluminum foil
• Pharmaceutical foil
• Container foil
• Cable foil

Aluminum Foil Specifications for Wholesale Buyers

Specification	Common Options
Alloy	1050, 1060, 1100, 1235, 3003, 3004, 8011, 8079
Temper	O, H14, H16, H18, H19, H22, H24, H26
Thickness	0.006–0.200 mm
Width	100–1,600 mm, customizable
Inner Diameter	75, 150, 200, 300 mm
Surface	Mill finish, bright, lacquered, embossed
Form	Roll, jumbo roll, sheet
Standards	EN 546, ASTM B373, GB/T 3198, depending on product

The specifications above are general reference options. Not every alloy, temper, width, or thickness combination is available for every application.

What Should Buyers Confirm Before Ordering?

Before placing an order, buyers should confirm:

• Required alloy and temper
• Exact thickness and tolerance
• Roll width and length
• Inner and outer roll diameter
• Surface finish
• Application and processing method
• Packaging requirements
• Applicable quality standards
• Order quantity and delivery schedule

For 8011 aluminum foil, for example, a common specification range includes 0.006–0.200 mm thickness and customized widths. The final specification should be confirmed according to the intended use.

Factors That Affect Aluminum Foil Price

Alloy and Temper

Different alloys have different production requirements. Special alloy and temper combinations may affect the final price.

Thickness and Width

Thicker foil contains more aluminum per square meter. Wider rolls may also require specific production arrangements.

Surface Treatment

Plain foil is different from lacquered, coated, embossed, or laminated foil. Additional processing can increase the total cost.

Order Quantity

Large orders may offer better production efficiency. Small customized orders may have higher processing costs per ton.

Packaging and Delivery

Roll protection, pallet type, container loading, and destination can affect the final quotation.

For an accurate price, buyers should provide the alloy, temper, thickness, width, quantity, and destination.

How to Choose the Right Aluminum Foil Thickness

The right specification starts with the final application. A packaging producer and an industrial insulation manufacturer may need very different foil products.

Select Thickness Based on the Product

These ranges are starting points. The actual choice has confirmed through product testing and processing requirements.

Consider the Forming Process

Deep drawing, folding, lamination, embossing, and sealing place different demands on the foil. The alloy and temper should match the production process.

Check Thickness Tolerance

Consistent thickness is important for high-speed production. Buyers should confirm the permitted tolerance and inspection method.

Consider Surface Quality

Pinholes, oil marks, scratches, and surface defects can affect the final product. Packaging and technical applications may have different surface requirements.

Test Samples Before Mass Production

A sample test can help confirm flexibility, strength, sealing performance, and compatibility with the customer’s equipment. This can reduce production risks.

Why Choose a Professional Aluminum Foil Manufacturer?

A reliable aluminum foil manufacturer should provide more than a competitive price. Stable quality and accurate specifications are also important.

A professional supplier can support customers with:

• Multiple aluminum alloy options
• Different foil thicknesses and tempers
• Customized roll widths
• Plain, bright, coated, and embossed surfaces
• Technical specification support
• Sample arrangements
• Export packaging
• Production and delivery coordination

For distributors, packaging manufacturers, and industrial buyers, a stable supply of aluminum foil helps maintain production efficiency and product quality.

Frequently Asked Questions About Aluminum Foil Thickness

What Is the Thinnest Aluminum Foil Thickness?

Commercial aluminum foil can be produced at very thin gauges. Around 0.006 mm (6 μm) is a common reference for thin packaging foil. The available minimum thickness depends on the alloy, width, rolling process, and quality requirements.

What Is the Standard Thickness of Household Aluminum Foil?

Household aluminum foil commonly uses thicknesses around 0.009–0.020 mm. Some heavy-duty products use 0.025 mm or thicker material. The correct choice depends on the intended use.

Is 0.02 mm Aluminum Foil Thick?

0.02 mm equals 20 μm. It is considered a medium-thickness option for many flexible foil products. It is used in household packaging, laminated materials, and selected industrial applications.

What Is the Difference Between 10 Micron and 20 Micron Aluminum Foil?

Which Aluminum Alloy Is Best for Household Foil?

8011 and 1235 are common options for household foil. Both can be used for flexible packaging products. The final choice depends on the required strength, flexibility, surface quality, and production process.

Which Alloy Is Suitable for Pharmaceutical Aluminum Foil?

8011 and 8079 are common choices for pharmaceutical foil. The required alloy depends on the packaging structure, forming process, and product quality requirements.

Can Aluminum Foil Be Customized in Different Thicknesses?

Yes. Aluminum foil can be supplied in different thicknesses, widths, alloys, tempers, and surface finishes. Customized specifications should be confirmed with the manufacturer.

Does Thicker Aluminum Foil Always Mean Better Quality?

How Do I Convert Aluminum Foil Thickness from mm to Microns?

Multiply the thickness in millimeters by 1,000.

For example:

• 0.006 mm = 6 μm
• 0.010 mm = 10 μm
• 0.020 mm = 20 μm
• 0.050 mm = 50 μm
• 0.100 mm = 100 μm

What Is the Difference Between Aluminum Foil and Aluminum Sheet?

Aluminum foil is much thinner and more flexible. It is mainly used for packaging, insulation, and technical materials. Aluminum sheet is thicker and is often used for construction, transportation, fabrication, and industrial products.

Can I Get Aluminum Foil Samples Before Ordering?

Sample availability depends on the required alloy, thickness, and surface finish. Buyers can discuss sample sizes and shipping arrangements with the manufacturer before placing a bulk order.

Request a Quote for Customized Aluminum Foil

Choosing the correct aluminum foil thickness can improve product performance and control material costs. Whether you need thin flexible packaging foil, pharmaceutical foil, household foil, container foil, or industrial aluminum foil, the alloy and temper should match your production requirements.

Send us your required thickness, alloy, temper, width, quantity, and application. Our team can help you find a suitable aluminum foil solution for your project.