Sign Making Materials

Sign Material Guide

Fifteen sign materials, what each one is good at and where each one falls short, written by the shop that prints, cuts and installs them.

Material Library

Sign Materials and Substrate Guides

Different sign materials solve different problems. Weight, rigidity, finish, print surface, weather exposure, mounting method, project term, and budget can all affect the right choice.

Metal

Aluminum

Rust-proof and weather-resistant, built for signs that need to hold up outdoors for years.

Composite

Aluminum Composite

A rigid sandwich panel that stays flat for a clean, flat face on storefront and wayfinding signs.

Fluted Plastic

Corrugated Plastic

Lightweight and affordable, built for temporary and outdoor signage that needs to move easily.

Indoor Display

Foam Board

Lightweight with a smooth face for sharp printed graphics, ideal for indoor signage and displays.

Thin Plastic

Styrene

Thin, printable plastic that holds color well, popular for menu boards and indoor displays.

Rigid Foam Core

Ultraboard

Rigid foam-core board for indoor displays, signs, exhibits, and projects needing extra stiffness.

Rigid Foam

HDU

Lightweight and durable foam, ideal for carved, dimensional, and custom signs.

Illuminated Signage

Neon

Bright, eye-catching material for illuminated signs, custom lettering, and displays.

Magnetic Material

Magnetic Sheeting

Flexible magnetic material for removable signs, vehicle graphics, and displays.

Wood-Based Panel

MDF

Smooth, dense fiberboard that works well for custom indoor signs, displays, and lettering.

Compare Them All

Every Sign Material We Print, Cut and Fabricate

The cards above cover the materials people ask about most. This list covers all fifteen, with the job each one does best, so you can go straight to the right guide.

Long Term Outdoor Aluminum for parking and property signs, aluminum composite for large flat wall signs, HDU and wood for carved signs.

Temporary Outdoor Coroplast for yard, job site and campaign signs that stay up for weeks or a season.

Indoor Panels Expanded PVC for wall and office signs, acrylic for polished panels and letters, MDF for painted routed pieces.

Displays and Events Foam board, Gator Foam and Ultraboard for mounted prints, easel signs and exhibit panels.

Thin Printed Inserts Styrene for menus, frames, holders and retail displays.

Lit and Exposed Faces Polycarbonate for light box faces and covers that need to survive impact, neon for lit lettering.

Removable Graphics Magnetic sheeting for vehicle door signs and changeable displays.

How We Choose

Four Questions That Pick the Material

How long does it need to last?

A season, a few years or a decade. This one question rules out half the list.

Inside or outside?

Sun, rain and wind decide between plastics, foam boards and metal faced panels.

How is it mounted?

Stakes, standoffs, a frame or a wall each suit different boards.

How is it seen?

Close up at a counter or from a moving car changes the size, thickness and finish.

FAQs

Sign Material Questions

What is the most durable sign material?

For outdoor flat signs, aluminum and aluminum composite. Both resist corrosion and stay flat for years. For carved signs, HDU outlasts wood because it does not rot.

What is the cheapest sign material?

Coroplast for outdoor temporary signs and foam board for indoor displays. Both are economical because they are made for short term use.

Which sign material is best for outdoor use?

Aluminum composite for most long term wall signs, solid aluminum for parking and property signs, and Coroplast for temporary signs.

Can you help me choose a material?

Yes. Send the size, where the sign goes, how it mounts and how long it needs to last, and we will recommend a material with the reasons.

Not Sure Which Material Fits?

Let Us Recommend the Right Sign for Your Space

These guides cover our most common materials. If you’re weighing options for your project, reach out: we can recommend a substrate and finish that fits your budget, location, and local permit rules.