What Makes ACPs Different from Traditional Metal Sheets

In construction, signage, and advertising, selecting the right material is crucial for cost, performance, and appearance. While traditional metal sheets have long been used, the aluminium composite panel (ACP) is quickly becoming a popular alternative. ACPs offer a lightweight structure, flexible design options, and exceptional durability, making them ideal for hoardings, signage, and building facades. In this blog, we’ll compare ACPs with traditional metal sheets and explain why ACPs are now the preferred choice across various industries, including construction, retail, and printing. Understanding these differences can guide you towards the best material choice for your project.

What Is an Aluminium Composite Panel (ACP)?

An aluminium composite panel is a type of flat panel that consists of two thin layers of aluminium bonded to a non-aluminium core. Typically, the core is composed of fire-retardant materials or polyethylene. This unique construction makes the panel lightweight, yet strong and stiff.

ACPs are commonly used in building exteriors, internal wall cladding, shop signage, and hoardings. Their smooth surface allows for high-quality printing, and they come in a wide range of colours and finishes, including metallic, matte, and woodgrain.

What Are Traditional Metal Sheets?

Traditional metal sheets are made from a single piece of solid metal. These can include aluminium, steel, zinc, or copper. They have long been used for roofing, wall panels, gutters, and other building applications.

Metal sheets are known for their strength and durability. However, they are heavier than ACPs and can be harder to cut, shape, or customise. They also need more protection from the elements, as certain metals may rust or corrode over time.

Key Differences Between ACPs and Traditional Metal Sheets

1. Material Composition

The most obvious difference lies in the structure. ACPs are composite materials. They have a layered setup with a non-metal core, which adds to their flexibility and lightness. Traditional metal sheets, on the other hand, are solid metal through and through.

This composition affects everything from weight to performance. ACPs offer a good balance of strength and flexibility, while metal sheets are generally stronger but more rigid.

2. Weight and Handling

Because of their layered design, ACPs are much lighter than traditional metal sheets. This makes them easier to transport, lift, and install. A lighter material also means lower labour and handling costs.

For large-scale printing or temporary installations like construction hoardings, using ACPs can save time and effort compared to using heavier metal sheets.

3. Durability and Weather Resistance

Both materials are durable, but they behave differently in harsh conditions. ACPs are resistant to UV rays, moisture, and temperature changes. The outer aluminium layer is often coated with a protective finish that prevents corrosion.

Traditional metal sheets can also be durable, especially those made from treated or galvanised steel. However, they may require more maintenance over time, especially in coastal or high-humidity areas where corrosion is more likely.

4. Design and Aesthetic Flexibility

ACPs are highly valued for their design flexibility. They can be produced in almost any colour or finish. Some even mimic the look of wood, stone, or brushed metal. This makes them perfect for modern architecture, signage, and branding.

Metal sheets have a more industrial look and usually require painting or coating to achieve certain finishes. They're often limited in aesthetic use unless custom treatments are applied.

For designers and advertisers who want their hoardings or signboards to stand out, ACPs provide far more creative options.

5. Cost-Effectiveness

Although initial material costs may vary, ACPs are generally more cost-effective in the long run. Their light weight reduces transport and installation costs. Plus, the low maintenance and long-lasting finish can lead to fewer repairs and replacements.

Metal sheets can become expensive due to higher labour costs, protective coatings, and potential corrosion treatments.

6. Fire Resistance

This area depends on the type of ACP used. Fire-rated ACPs have special cores that slow down fire spread and emit less smoke. Some types are even certified for use in public buildings.

Solid metal sheets are naturally fire-resistant, but they conduct heat more easily, which can be a concern in some environments.

When safety standards are important, choosing the right type of ACP or metal sheet is essential.

Use Case Comparison

Let’s look at some common applications and see where each material performs best:

Signage and Hoardings

ACPs are widely used in advertising hoardings, construction barriers, and shop signs. Their smooth surface is perfect for high-resolution digital printing. They’re light, easy to mount, and offer great visual appeal.

Traditional metal sheets can also be used, but their weight and rigid form make them less practical for printed signage or temporary advertising.

Cladding and Facades

ACPs are a top choice for building facades and internal wall cladding. Their clean lines and sleek finishes provide a modern look. They also offer good insulation benefits when paired with proper back-layer systems.

Metal sheets are often used in industrial buildings or agricultural structures where appearance is less of a concern and strength is the priority.

Roofing and Structural Use

For roofing and other load-bearing applications, traditional metal sheets, especially galvanised steel or aluminium, are the better choice. Their strength and solid structure make them ideal for long spans and heavy-duty installations.

ACPs are not designed for structural use but are excellent for coverings, decorative panels, and light-duty applications.

Sustainability and Environmental Impact

Both materials have benefits in terms of recyclability.

Traditional metal sheets are 100% recyclable. They retain their qualities even after being melted down and utilised again. This makes them a good choice from a sustainability perspective.

ACPs are also recyclable, but the process is more complex because of the composite core. Still, many modern manufacturers are finding ways to produce eco-friendly ACPs, and some are using recycled content in their panels.

As sustainability becomes a bigger focus in construction and signage, both materials will likely continue evolving toward greener solutions.

Conclusion

Both aluminium composite panels (ACPs) and traditional metal sheets have their advantages, depending on your project’s needs. ACPs are lightweight, cost-effective, and visually appealing, making them ideal for signage, hoardings, and cladding. However, for heavy-duty applications like roofing, traditional metal sheets may be more suitable. Choosing the right material can enhance your project’s performance, appearance, and cost-efficiency. At Hoarding Print Company, we specialise in high-quality ACPs, offering reliable solutions for hoardings, signage, and more, helping your brand or construction site make a lasting impression with ease.