Aluminum Composite Panel Coil: What Fabricators Specify.
An ACP panel is only as good as the two aluminum skins bonded to its core. Getting the coil right before lamination matters more here than in most single-sheet applications, because any inconsistency shows up across an entire facade at once.
Key takeaways
- ACP skin coil has its own priorities: consistent gauge and flatness so both skins bond evenly to the core, and coating adhesion across the full run.
- Orbit rolls coil from 0.20 to 2.00 mm thick, with coated coil up to 1.60 mm, in the 1xxx, 3xxx and 5xxx families.
- Color consistency across a production run matters more for ACP than most applications, since panels from different batches sit side by side on one facade.
- PVDF suits ACP given typical long exterior service expectations.
- Recycled-content coil is available where a project has that requirement, confirmed per order.
What does ACP manufacturing actually need from the coil?
Two coated aluminum skins, bonded to a core material, with both skins needing to behave consistently through the lamination process. Any variation in gauge or flatness between one part of a coil and another can show up as an inconsistency in how evenly the skin bonds to the core.
That makes coil consistency, not just the coil's nominal specification, a real factor in how a fabricator's lamination line performs. It is worth confirming with a supplier how tightly gauge and flatness are held across a coil, not just what the target gauge is.
What gauge is typical for ACP skins?
Generally on the thinner end of what a coil coating program offers, since ACP relies on the composite structure, two skins plus a core, for its stiffness rather than the aluminum skin alone. Orbit rolls coil from 0.20 to 2.00 mm thick and up to 1650 mm wide, with coated coil running up to 1.60 mm thick and up to 1350 mm wide.
Where a specific ACP program should sit inside that range depends on the panel's overall design and the core it is being laminated to, so we confirm gauge against your specification rather than a generic recommendation.
Why does coating adhesion matter more for ACP than for a single sheet?
Because the coated skin becomes part of a bonded assembly, not a standalone finished product. A coating that performs fine as a standalone painted sheet still needs to interface correctly with the lamination adhesive on its uncoated side, and adhesion testing on the finished panel is part of how a fabricator confirms that combination works before committing to a production run.
Testing is to ASTM or EN depending on your market. Specific adhesion test data for a given alloy, temper and coating combination is available on request against your specification. The National Coil Coating Association (NCCA) is the trade association representing coil coating businesses in North America.
Why does color consistency across a run matter so much for ACP?
Because ACP panels from the same project typically sit next to each other across a large, continuous facade, where any batch-to-batch color drift is far more visible than it would be on a single standalone panel. A slight shade difference that would go unnoticed on an isolated sign or trim piece reads clearly across a multi-panel wall.
This is part of why coating batch consistency is worth confirming explicitly for an ACP program, particularly one that spans multiple coil orders or a phased installation over time.
Which coating system fits ACP?
PVDF suits ACP given the long exterior service expectations ACP facade projects typically carry, following the same general durability logic that applies to any exterior coil: PVDF generally holds color and gloss longer under UV exposure than standard PE. See choosing a coating system for exterior aluminum coil for the general performance differences between Orbit's exterior systems.
Orbit's coating program covers PE, HDPE, PVDF, PU, PUPA, Epoxy, Acrylic and Epoxy-PE, with finish options including solid, metallic, woodgrain, brushed, matte, gloss and textured, in RAL or custom colors, across aluminum composite panel applications.
Does recycled content apply to ACP coil?
It can, on select alloy and coating combinations. Orbit's confirmed worked example is a 3105 substrate with a PUPA coating, reaching roughly 75% recycled content, confirmed per order. See what recycled-content aluminum coil actually means for how that figure is calculated and what it covers, since achievable recycled content depends on the specific alloy and coating pairing rather than applying uniformly to every ACP order.
What should go in an ACP coil enquiry?
Skin gauge, alloy, coating system, color reference, and the scale of the project, single building or multi-phase, since that affects how tightly batch consistency needs to be held across the order.
- Skin gauge and alloy, or the panel design if gauge is still open
- Coating system and finish
- Color reference, RAL or custom
- Single order or multi-phase project, where batch consistency matters more
- Whether recycled-content documentation is required
- Quantity and destination
Minimum order quantity is 6.5 MT. Coil ships from Aqaba, with transit to Europe of 5 to 13 days port to port and to the USA of around 25 days.
Common questions
What gauge does Orbit supply for ACP skins?
Orbit rolls coil from 0.20 to 2.00 mm thick, with coated coil up to 1.60 mm. The right gauge for an ACP program depends on the panel design, and we confirm it against your specification.
Can Orbit hold consistent color across a multi-phase ACP project?
Tell us the project scope and phasing and we will confirm what batch consistency we can commit to across the order, since this matters more for a facade viewed as one continuous surface.
What coating system does Orbit recommend for ACP?
PVDF suits ACP well given typical long exterior service expectations for ACP facades, though the right system depends on your specific exposure and project requirements.
Is recycled-content coil available for ACP?
On select combinations. The confirmed worked example is a 3105 substrate with a PUPA coating at roughly 75%. Send your alloy and coating preference and we will confirm what is achievable.
What is the minimum order quantity for ACP skin coil?
6.5 MT. Coil ships from Aqaba, with transit to Europe of 5 to 13 days port to port and to the USA of around 25 days.
References
- National Coil Coating Association (NCCA): the trade association representing coil coating businesses in North America.
Specifying skin coil for an ACP program?
Send your gauge, alloy, coating, color and project scope. We respond to RFQs within one business day.