When it comes to signage, the material you choose is just as important as the design itself. The right substrate affects durability, appearance, weight, and cost — and making the wrong choice can mean replacing your sign far sooner than expected.
At 1 Stop Print & Signs, we work with a range of sign materials every day. Here’s a straightforward comparison of the three most popular options to help you make the right call.
Coroplast (Corrugated Plastic)
Coroplast is the go-to material for temporary and semi-permanent signage. It’s lightweight, affordable, and weather-resistant, making it perfect for real estate signs, election signs, event signage, and construction site boards.
Pros: Very affordable, lightweight, easy to install, weather-resistant, available in various thicknesses (4mm and 6mm are most common).
Cons: Not suitable for long-term permanent installations, can warp in extreme heat, less rigid than alternatives.
Best for: Yard signs, directional signage, temporary event promotions, real estate listings.
Sintra (Expanded PVC)
Sintra is a rigid, smooth PVC foam board that offers a more polished, professional look than coroplast. It’s commonly used for indoor signage, point-of-purchase displays, and trade show graphics, but it also performs well outdoors.
Pros: Smooth, professional surface for high-quality printing, lightweight but rigid, paintable, available in multiple thicknesses (3mm to 19mm).
Cons: More expensive than coroplast, can become brittle in very cold temperatures, not as durable as metal for permanent outdoor use.
Best for: Retail displays, indoor wayfinding, trade show panels, wall-mounted signage.
Aluminum
Aluminum signs are the gold standard for permanent outdoor signage. They’re incredibly durable, weather-resistant, and maintain a professional appearance for years. Available in flat sheets or with a brushed/composite finish.
Pros: Extremely durable, rust-resistant, handles all weather conditions, professional and premium appearance, excellent for long-term use.
Cons: Heavier than plastic options, more expensive, requires proper mounting hardware.
Best for: Storefront signs, building-mounted signage, parking lot signs, address plaques, permanent directional signs.
Quick Comparison Table
| Feature | Coroplast | Sintra | Aluminum |
|---|---|---|---|
| Durability | 1–2 years | 2–5 years | 5–10+ years |
| Cost | $ | $$ | $$$ |
| Weight | Very light | Light | Moderate |
| Best Use | Temporary | Indoor/Display | Permanent Outdoor |
Not Sure Which One You Need?
Every project is different. If you’re not sure which material is right for your sign, bring your project to us. We’ll help you weigh the options based on your budget, location, and how long you need the sign to last. Contact us or request a quote to get started.