Why Choosing the Right ACP Matters
When it comes to modern architecture, signage, and interior design, Aluminium Composite Panels (ACP) offer the perfect mix of style, strength, and functionality.
But not all ACP panels are created equal — choosing the right thickness and surface finish can make a huge difference in your project’s performance, durability, and overall look.
At GB PLAS, we help builders, architects, and designers across Malaysia select ACP panels that deliver both aesthetic excellence and structural reliability. Here’s a complete guide to help you make the right choice.
Understanding ACP Panel Structure
An ACP panel is a sandwich-style material made of two thin aluminium sheets bonded to a polyethylene (PE) or mineral-filled core. This design gives it excellent rigidity, lightweight strength, and weather resistance — ideal for both exterior and interior applications.
Typical GB PLAS ACP panel specs:
- Total Thickness: 2mm, 3mm, or 4mm (±0.2mm)
- Aluminium Skin: 0.1mm, 0.2mm, or 0.4mm
- Core Type: Polyethylene (PE) or Fire-Retardant (FR)
- Width Options: 1220mm / 1250mm
- Length: Up to 24 feet
Choosing the Right ACP Thickness
The right thickness depends on where and how you plan to use the panel.
Below is a quick breakdown of thickness recommendations based on application:
Application | Recommended ACP Thickness | Reason |
---|---|---|
Interior Wall Panels / Ceilings |
2mm – 3mm |
Lightweight, easy to install, sufficient rigidity indoors |
Signage and Display Boards |
3mm – 4mm |
Provides extra stability and wind resistance |
Exterior Cladding / Façades |
4mm (0.4mm skin) |
Withstands weather, UV exposure, and wind load |
Industrial and Structural Use |
4mm+ with FR Core |
Enhanced strength and fire safety |
Pro Tip:
For long-lasting outdoor projects, always go for 4mm ACP with thicker aluminium skin (0.4mm) — it performs better under Malaysia’s tropical climate.
PE Core vs FR Core: What’s the Difference?
Choosing the right core material is just as important as thickness.
Core Type | Description | Best For |
---|---|---|
PE (Polyethylene) Core |
Lightweight, cost-effective, and flexible |
Signage, interiors, short-term installations |
FR (Fire-Retardant) Core |
Filled with mineral compounds that slow flame spread |
Building façades, commercial projects, safety-compliant designs |
If your project requires fire-rated materials, always check that the ACP meets local fire safety standards. GB PLAS offers FR-certified ACP panels suitable for high-rise and public buildings.
Selecting the Right Surface Finish
Beyond structure, your ACP’s finish and coating play a key role in both appearance and protection.
Here’s how to choose the best one:
Finish Type | Features | Ideal Use |
---|---|---|
Matte Finish |
Non-reflective, smooth texture |
Modern interiors, minimalistic façades |
Glossy Finish |
Shiny surface for bold visual impact |
Signage, showrooms, retail fronts |
Metallic Finish |
Sleek, futuristic look |
Commercial buildings, offices |
Wood-Grain Finish |
Natural aesthetic without maintenance |
Homes, interior walls, decorative panels |
Mirror Finish |
Reflective surface for modern appeal |
High-end retail, architectural features |
Brushed Finish |
Textured metallic appearance |
Industrial-style interiors, signage |
Colour and Coating Quality
A high-quality coating is essential to keep the panels looking fresh over time.
GB PLAS uses high-durability PVDF and Polyester coatings that provide:
- UV resistance against fading and cracking
- Weatherproof protection against rain and humidity
- Long-lasting shine even under direct sunlight
For outdoor façades, PVDF coating is strongly recommended due to its superior weather stability and self-cleaning properties.
How to Match ACP Specifications with Project Goals
Project Goal | Best ACP Type | Key Benefits |
---|---|---|
Lightweight installation |
3mm PE Core |
Easy to fabricate and install |
Fire safety compliance |
4mm FR Core |
Meets building code standards |
Luxury aesthetics |
4mm Metallic / Mirror Finish |
High-end visual appeal |
Eco-friendly construction |
Recyclable ACP from GB PLAS |
Sustainable and durable |
Low maintenance |
PVDF-coated surface |
Long-term colour and gloss retention |
Why GB PLAS Is the Trusted Choice
With over 18 years of industry experience, GB PLAS is Malaysia’s trusted supplier of high-performance ACP panels used in architecture, design, and engineering projects. Our commitment to quality, innovation, and sustainability ensures every panel performs beautifully and lasts longer.
Why clients choose us:
- ISO-certified production for consistent quality
- Custom sizes and colour-matching services
- FR-rated and weather-resistant options
- Eco-friendly recycling initiatives (“Your Trash, Our Treasure”)
- Trusted by architects and builders in 60+ countries
Conclusion: Get the Perfect ACP for Your Next Project
Selecting the right ACP thickness, finish, and core type isn’t just about looks — it’s about ensuring safety, performance, and long-term value.
Whether you’re designing a sleek commercial façade, durable signage, or a modern interior wall, GB PLAS provides the right ACP solution tailored to your needs.
Contact us today for a consultation or a custom quotation and discover why GB PLAS is the preferred choice for architects, builders, and designers across Malaysia.

Aluminium Composite Panel (ACP Panel)
Elevate your projects with GB Plas, the industry-leading aluminium composite panel (ACP Panel) crafted for ultimate performance and versatility.
Read More ...