Aluminum composite materials (ACM) have become a go-to solution for sign makers and fabricators due to their lightweight structure, durability, and smooth print surfaces. Two standout products in this space are Piedmont Sign Grade® AluPOLY® and DIBOND®. While each offers strong performance, they differ in composition, surface characteristics, and fabrication advantages.
This article compares AluPOLY ACM and DIBOND sheet panels without choosing a winner. Instead, it helps fabricators, purchasers, and designers understand how each product performs across key areas like durability, print quality, and ease of use.
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What Is an ACM Sheet?
An ACM sheet is a layered panel composed of a solid plastic core sandwiched between two aluminum sheets. These panels are ideal for a range of indoor and outdoor signage, POP displays, and architectural applications. Their rigid yet lightweight build makes them easier to handle and install than solid metal alternatives.
Both AluPOLY ACM (offered by Piedmont Plastics) and DIBOND (a 3A Composites product) fall into this category and serve similar market needs.
How Similar are AluPOLY and DIBOND?
AluPOLY and DIBOND are two of the most trusted aluminum composite materials used in signage and display applications, each offering unique benefits depending on the project’s needs. Both products are known for their excellent durability and weatherability, making them suitable for demanding indoor and outdoor environments. When it comes to print surface and ink adhesion, each brand delivers a high-quality finish, though slight differences in coating technology may impact performance based on the type of printing or graphics applied. Additionally, fabricators often compare these ACM sheets for their ease of cutting, routing, and installation, which are factors that can significantly influence workflow and project efficiency.
Durability and Weatherability
AluPOLY: AluPOLY panels consist of a polyethylene core and painted aluminum facers. These panels are engineered for moderate to heavy-duty signage applications. They are UV-stable and suitable for both interior and exterior environments. AluPOLY's construction helps resist moisture, corrosion, and general wear, making it dependable for long-term outdoor exposure.
DIBOND: DIBOND panels are widely recognized for premium durability. They also feature a solid polyethylene core but with .012" thick aluminum facers, offering greater rigidity. The panels resist warping, delamination, and weather extremes. According to 3A Composites, DIBOND is built to last in outdoor conditions for up to 10 years or more.
2. Print Surface and Ink Adhesion
AluPOLY: AluPOLY features a high-gloss or matte painted aluminum surface, designed for direct digital printing (AluPOLY Digital), screen printing, or vinyl application. Its consistent finish allows for excellent ink adhesion and vibrant color reproduction.
DIBOND: DIBOND panels are known for their super-smooth polyester-coated surface that provides industry-leading print results. This makes them a top choice for high-end visual applications where precision color matching and clarity are essential. The surface is compatible with most UV-cured, solvent, and latex ink systems.
3. Fabrication and Ease of Use
AluPOLY: AluPOLY is easy to route, cut, and mount using standard fabrication tools. It can be drilled or bent without cracking. Sign shops often appreciate its consistent thickness and flexibility for shaping.
DIBOND: DIBOND is equally known for exceptional machinability. It can be routed, sawed, punched, or bent using standard equipment. DIBOND also offers a broader range of finishes and thicknesses, providing more creative flexibility.
Applications in Signage and Display
AluPOLY and DIBOND are widely used across a range of industries thanks to their versatile performance characteristics. Let's look at some of the most common ways these ACM panels are used, highlighting where each material excels based on its unique properties.
Common Uses for Both:
Final Thoughts
Whether you choose AluPOLY or DIBOND, both aluminum composite materials offer reliable solutions for signage, display, and graphic applications. AluPOLY provides consistent quality and value, making it an excellent choice for everyday signage. DIBOND delivers top-tier durability and print performance for premium projects.
The right choice depends on your project goals, performance requirements, and desired aesthetics.
Contact Piedmont Plastics
Looking for help selecting the best ACM panel for your next project? Piedmont Plastics carries both AluPOLY and other leading brands of aluminum composite sheet materials. Contact us today to speak with a plastics expert or request a quote for your signage needs.
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