The reference substrate for signage.
For the sign fabricator or large-format printer, the aluminum composite panel (ACP/ACM) has become the standard substrate for outdoor lettering and signage: a flat, lightweight, durable surface, ready for printing, vinyl, or cut lettering.
Why ACP dominates
signs and lettering.
A sign or display panel demands a perfectly flat surface: the smallest waviness shows under raking light, and stands out in a large-format print. The aluminum composite panel was adopted by the sign industry precisely for that flatness, paired with a reduced weight that simplifies mounting on a support structure.
5005 aluminum · PE core
Two 0.5 mm sheets of 5005 aluminum bonded to a polyethylene core. Total thickness 4 mm — flat, rigid, warp-free.
Matte PVDF
Matte PVDF finish, UV- and weather-resistant — a stable base for graphic applications outdoors.
4×8 and 5×10
4×8 (32 sq. ft.) for most signs. 5×10 (50 sq. ft.) for full-height signage, reserved for distributor accounts.
What the flat surface
makes possible.
An ACP/ACM panel is worked with techniques already standard in the sign shop — no specialized additional equipment required.
Large-format digital printing
Flat surface and matte finish: a stable base for direct printing or applying a laminated print.
Vinyl and cut lettering
Uniform adhesion across the whole surface, with no bubbling caused by a wavy substrate.
Sign boxes and panels
Cuts and folds easily to form sign boxes, returns, or composite panels mounted on a structure.
A price that follows
your shop's volume.
A sign shop or large-format printer doesn't buy one panel at a time. Ahlum's distributor program gives you a declining rate by pallet, with delivery across the Montreal area or pickup in Dorval.
ACP for signage:
your questions.
Why is ACP/ACM the standard substrate for signage?
Because it offers a perfectly flat, stable surface with no waviness under raking light — an essential requirement for cut lettering, vinyl, and large-format printing.
Is the Ahlum panel compatible with large-format digital printing?
Yes. The matte PVDF finish and flat surface of the panel suit digital printing, adhesive vinyl, and cut lettering — the same techniques already used on ACP/ACM in general.
Can a sign shop buy in volume from Ahlum?
Yes, through the distributor program: price follows volume (in-stock pallet or multi-pallet), with delivery across the Montreal area or pickup in Dorval.
The right substrate for your next sign.
Order a sample to confirm the finish, or open a distributor account for a price that follows your volume.