Choosing the right substrate for outdoor signage
Acrylic, ACP or brushed steel? A short guide to picking a material that survives weather, sunlight and daily cleaning.
An outdoor sign has to survive sun, rain, wind and years of cleaning while still looking like your brand. The material behind the print or the letters decides most of that, so it is worth choosing carefully before artwork is final.
Acrylic
Acrylic gives a crisp, glossy finish and takes printing, vinyl and routed shapes very well. It is ideal for fascia faces, illuminated boxes and layered logos. Choose UV-stable, cast acrylic outdoors and allow for expansion in hot Lisbon summers.
Aluminium composite panel (ACP)
ACP sandwiches a light core between two aluminium skins. It stays flat over large sizes, is easy to fix to walls and costs less than solid metal. Printed or wrapped in vinyl, it is the workhorse for fascias, hoardings and directional boards.
Stainless steel and aluminium
Brushed or polished steel letters feel premium and last for decades, especially near the coast when marine-grade steel is used. Painted aluminium offers a similar look at lower weight and cost.
How to decide
- How far away should people read the sign?
- Will it be lit, and from the front or behind?
- Does the building or local authority have rules on materials and size?
- How long does it need to last?
Send us photos of the location with rough measurements and we will recommend a material and finish that fits both the site and the budget.