Comparison of 6μm and 7μm aluminum foils of 1235 and 8079

Aluminum foil is widely used in industries ranging from packaging to insulation. Among the most popular types of aluminum foil are 1235 aluminum foil and 8079 aluminum foil. Both alloys offer unique properties and are employed in various applications, including flexible packaging and industrial uses. However, choosing between the two can be challenging, as they share similarities while also differing in key areas. In this article, we will discuss the similarities and differences between 1235 and 8079 aluminum foil, compare their common thicknesses, and guide you on how to choose the right manufacturer for your needs.

The Similarities Between 1235 Aluminum Foil and 8079 Aluminum Foil

Both 1235 aluminum foil and 8079 aluminum foil are widely used in the packaging industry due to their excellent barrier properties, lightweight structure, and resistance to moisture, light, and air. While each alloy has distinct applications, they share several similarities that make them suitable for packaging and other flexible foil applications.

1. Excellent Barrier Properties

One of the key reasons why both 1235 and 8079 aluminum foil are used for packaging is their ability to provide a strong barrier against external factors such as oxygen, moisture, and light. These properties are crucial for preserving the freshness and quality of food, beverages, and pharmaceuticals. Both alloys can effectively prevent spoilage, oxidation, and contamination, which is why they are often employed in the food and beverage packaging industry.

2. Lightweight and Flexible

Both 1235 and 8079 aluminum foil are lightweight materials, making them easy to transport and handle. They are also highly flexible, which means they can be shaped and molded to fit a variety of packaging formats, from food containers to beverage pouches and insulation wraps. This flexibility makes them versatile choices for companies that require customized packaging solutions.

3. High Reflectivity

Both alloys are excellent at reflecting heat and light, which makes them suitable for applications requiring insulation and heat resistance. For example, in packaging applications, this characteristic helps protect sensitive products from exposure to sunlight and heat, ensuring that the contents remain fresh and intact. Their high reflectivity also contributes to their popularity in insulation applications.

4. Recyclability

Another important similarity between 1235 and 8079 aluminum foil is their recyclability. Aluminum is one of the most recyclable materials, and both alloys can be reused without losing their original properties. This eco-friendly characteristic makes these foils appealing choices for companies looking to reduce their environmental footprint and meet sustainability goals.

The Differences Between 1235 Aluminum Foil and 8079 Aluminum Foil

While 1235 and 8079 aluminum foils share many similarities, they also have significant differences that determine their respective applications. Understanding these differences is essential for selecting the right material for your packaging or industrial needs.

1. Alloy Composition

The primary difference between the two foils lies in their chemical composition. 1235 aluminum foil contains a minimum of 99.35% aluminum, making it a high-purity alloy. This high aluminum content contributes to its excellent flexibility and high ductility, which makes it ideal for industrial applications such as insulation, cable wrapping, and capacitors.

On the other hand, 8079 aluminum foil has a more complex composition, containing elements like iron and silicon. This alloy has lower purity than 1235 but offers enhanced strength and resistance to tearing, making it better suited for flexible packaging. The inclusion of additional elements gives 8079 aluminum foil superior tensile strength, allowing it to withstand more demanding packaging processes.

2. Main Applications

1235 Aluminum Foil: Due to its high purity and softness, 1235 aluminum foil is widely used in industrial applications such as insulation, cable wraps, and industrial capacitors. Its excellent formability makes it ideal for these applications where flexibility and the ability to conform to specific shapes are critical. Additionally, 1235 aluminum foil is often used for lamination and in the manufacturing of adhesive tapes.

8079 Aluminum Foil: In contrast, 8079 aluminum foil is predominantly used in the packaging industry. Its higher strength and tear resistance make it ideal for creating packaging materials such as pouches, lids, and wraps for food, beverages, and pharmaceuticals. 8079 aluminum foil is particularly effective for flexible packaging because it can withstand the rigors of sealing, folding, and transportation without tearing or puncturing.

3. Tensile Strength and Tear Resistance

One of the most significant functional differences between the two alloys is their tensile strength and resistance to tearing. 8079 aluminum foil is specifically designed to have higher tensile strength than 1235 aluminum foil. This makes 8079 more suitable for packaging applications that require durability and the ability to resist tearing during the packaging process or transportation.

In contrast, 1235 aluminum foil, while highly flexible, is not as strong as 8079. This makes it more appropriate for applications where flexibility is more important than strength, such as industrial insulation and non-structural applications.

4. Cost

Generally, 1235 aluminum foil tends to be less expensive than 8079 aluminum foil due to its simpler composition and higher purity. However, the specific cost difference depends on factors such as the required thickness, width, and volume of the order. While 8079 may be more costly, its added strength and durability can make it a more cost-effective solution for packaging applications, where these properties are critical.

1235 Aluminum Foil 6μm Thickness vs 8079 Aluminum Foil 7μm Thickness

When choosing between 1235 aluminum foil and 8079 aluminum foil, the thickness of the material plays an important role in its performance, especially for packaging applications. Below, we compare 6μm thickness for 1235 aluminum foil with 7μm thickness for 8079 aluminum foil, examining their respective benefits and ideal use cases.

1. 1235 Aluminum Foil 6μm Thickness

Flexibility: The 6μm thickness of 1235 aluminum foil makes it highly flexible and easy to mold into various shapes. This thin gauge is commonly used in applications such as cable wrapping, insulation, and lamination. Its ability to conform to irregular shapes makes it suitable for industrial uses where flexibility is paramount.

Lightweight: At 6μm, 1235 aluminum foil is incredibly lightweight, reducing shipping costs and making it easy to handle during manufacturing. The lightweight nature of this foil also means it can be layered with other materials to provide additional functionality without adding significant weight.

Application: The thinness of 6μm foil is best suited for non-packaging applications where strength is not a primary concern. It is commonly used in insulation wraps, cable wraps, and adhesive tapes.

2. 8079 Aluminum Foil 7μm Thickness

Strength and Durability: 8079 aluminum foil at 7μm thickness offers greater strength and tear resistance compared to 1235 aluminum foil at 6μm. This additional thickness provides an extra layer of protection for packaging applications, ensuring that the foil does not tear easily during the packaging process or while being handled by consumers.

Barrier Properties: The 7μm thickness of 8079 aluminum foil offers enhanced barrier properties, making it more effective at protecting contents from moisture, oxygen, and light. This makes it ideal for packaging products that require a longer shelf life, such as pharmaceuticals, food, and beverages.

Application: The slightly thicker 7μm 8079 aluminum foil is perfect for packaging applications where durability and strength are necessary. It is used in flexible packaging materials such as pouches, lids, and wraps, providing excellent protection for the products inside.

How to Choose 1235 and 8079 Aluminum Foil Manufacturers

Choosing the right aluminum foil manufacturer is crucial to ensure that you receive high-quality material that meets your specific requirements. Here are some key factors to consider when selecting a manufacturer for 1235 or 8079 aluminum foil:

1. Quality and Certification

Ensure that the manufacturer you choose has a strong track record of producing high-quality aluminum foil that meets industry standards. Look for manufacturers that have obtained certifications such as ISO 9001 for quality management systems and ISO 14001 for environmental management. These certifications indicate that the manufacturer adheres to strict production standards and is committed to delivering top-quality products.

2. Customization Options

Different applications may require specific thicknesses, widths, or alloy compositions. A good manufacturer should offer customization options to meet your exact specifications. Whether you need 6μm 1235 aluminum foil for insulation or 7μm 8079 aluminum foil for flexible packaging, the manufacturer should be able to adjust their production processes to deliver the right product for your needs.

3. Technical Support

Aluminum foil is a technical material, and selecting the right alloy, thickness, and width can be challenging. The manufacturer should provide expert guidance and technical support to help you make the right choice. Whether you're using 1235 for industrial applications or 8079 for packaging, having a knowledgeable team to assist you is invaluable.

4. Production Capacity

Ensure that the manufacturer has the production capacity to meet your order volume. If you require large quantities of aluminum foil, the manufacturer should have sufficient production capabilities to meet your needs in a timely manner. Ask about their lead times and order processing times to ensure they can deliver your materials when needed.

5. Reputation and Reviews

Research the manufacturer's reputation by reading reviews and testimonials from previous clients. A manufacturer with a solid reputation for delivering high-quality products on time is more likely to meet your expectations. Look for feedback from clients in similar industries, such as packaging or industrial insulation, to see how well the manufacturer performs in those areas.

When choosing between 1235 aluminum foil and 8079 aluminum foil, it's essential to consider their respective strengths and applications. 1235 is best for industrial uses such as insulation and lamination, while 8079 excels in packaging applications due to its superior strength and barrier properties. Understanding the differences between these two alloys, as well as their various thickness options, will help you make an informed decision based on your specific requirements.

Finally, when selecting a manufacturer, prioritize quality, customization options, technical support, production capacity, and reputation. Doing so will ensure you receive the best aluminum foil material for your project.

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