Working an aluminum composite panel at the shop: cutting and machining

Cutting and machining an ACP panel, in the shop.

One of the great strengths of the aluminum composite panel: it works with the tooling already in most shops — no specialized machine, no mandatory outsourcing. This guide covers cutting, drilling, edge finishing and the habits that separate a clean job from a ruined piece.

Request a sample → See bending & routing

Cutting

The right blade
does all the work.

The ACP panel cuts on a circular saw — table or handheld — with a fine-tooth carbide-tipped blade, of the aluminum/plastics type.

Carbide blade, fine teeth

The winning combo for a clean edge without burrs. A coarse-tooth blade tears the core and leaves a chewed edge — the same principle as cutting polycarbonate or thin aluminum.

Decorative face up

On a circular saw, the blade enters from below: cut with the decorative face up so any micro-chipping happens on the hidden side.

Film stays on

Keep the protective film on through all cutting and machining. It protects the matte PVDF finish from scratches and chips. Remove it only when installation is complete.

Machining

Drilling, countersinking,
routing the composite.

Beyond straight cuts, the panel accepts common shop operations — with two or three precautions.

↳ DRILLING

Standard bit, no hammer

A standard metal bit goes through the panel's 4 mm without forcing. No hammer action, no brute pressure: the PE core compresses, the skin won't crack.

↳ TORQUE

Moderate tightening

Rivets and screws go in without excess: overtightening dents the skin and leaves a visible ring around the fastener. A washer spreads the load.

↳ ROUTING

V-groove routing

V-groove routing removes the core along a narrow band and prepares the fold — that's the subject of the bending and routing guide, the companion to this page.

Bending and V-groove routing: the full guide →

Finishing

The edge, seen
three ways.

What to do with a cut edge when it stays visible? Three approaches, depending on the result you want.

Own the raw edge

On a 4 mm edge seen face-on, a clean carbide cut often speaks for itself — especially in matte black.

Refine the edge

A fine file or plane gives a smooth edge for close-contact fit-out pieces (counters, display panels).

Hide the edge with a fold

The architectural solution: route and fold a return that conceals the cut. Standard on façades, corners and sign cassettes.

Organization

Organizing the cuts
of a job.

Cutting is prepared at the bench, not at the panel. Three habits that cut waste and ruined pieces.

First, the cut plan. A panel layout drawn before the first cut — returns, openings, orientation — avoids buying one more panel "just in case". On a façade, the waste margin depends on the drawing: large regular pieces waste less than many small boxes.

Then, the cut direction. Always decorative face up, film on, and a table long enough to support a full 4×8: a panel that bends off the table tears the edge as it leaves the blade.

Finally, sorting offcuts. Wide offcuts keep their value for returns, trims and routing test runs — keep a clean stack; the bending guide will use a few to set the depth before final pieces.

Signage

The reference
printing substrate.

For sign shops, the ACP panel surface is familiar ground.

A perfectly flat surface, a matte PVDF finish that grips ink, a 4×8 format compatible with print tables: the composite panel is the historic substrate for wide-format printing and vinyl lettering. The surface needs no special preparation — the protective film comes off just before application, and the panel goes straight to installation without touch-ups.

ACM panels for signage and display →

FAQ

ACP cutting & machining:
your questions.

What saw should I use to cut an aluminum composite panel?

A circular saw (table or handheld) fitted with a fine-tooth carbide-tipped blade — the kind used for aluminum and plastics — gives a clean cut in an ACP panel. Cut with the decorative face up and keep the protective film on during the cut.

Can I drill an ACP panel without cracking it?

Yes. The composite panel drills with standard metal bits, without hammer action or aggressive support. Don't overtighten fasteners: excessive torque deforms the skin and marks the finish.

How do I get a clean edge?

A sharp carbide blade does most of the work. For visible edges, some shops refine with a plane or fine file. Another option: hide the edge with a fold — V-groove routing creates a return that conceals the cut.

Can I print directly on an ACP panel?

Yes: the flat surface of the composite panel is a reference substrate for wide-format printing and vinyl lettering in signage. Remove the protective film just before application.

Test the cut before the order.

A $5 sample lets you validate cutting, folding and finishing in your own shop — before committing to the job.

Request a sample Bending & routing Installation guide

ACP for signage Formats 4×8 / 5×10 Panel pricing