Coroplast, ACM (aluminum composite), and rigid PVC are all used for signs and displays. They differ in durability, weight, and cost.
Coroplast
Coroplast is corrugated plastic—light, low-cost, and good for short-term outdoor use like yard signs and event signage. It can warp in heat and is not suitable for long-term permanent installs.
ACM
ACM has two aluminum faces bonded to a core, commonly polyethylene or a mineral-filled material depending on the product. It offers a flat, rigid surface for signs and wayfinding. Confirm the exact grade, exterior rating and mounting requirements; ACM is not foam board.
Rigid PVC
Sign-grade PVC often comes as a rigid foamed sheet; solid PVC also exists. Its smooth surface suits indoor displays. Exterior suitability depends on the grade, UV resistance, thickness and mounting. Not every PVC sheet is outdoor-rated.
Quick comparison
- Corrugated plastic: lightweight and economical for temporary signs; confirm thickness and expected exposure.
- ACM: a rigid composite panel; select the grade and mounting for the location.
- PVC: a smooth display surface; check the exact product for outdoor use.
Common mistake
Choosing Coroplast for a sign that will stay up for years in full sun. It will eventually warp and fade. Use ACM or a material rated for long-term outdoor use.
Technical references
Manufacturer references explain the technology, not our current equipment or stock. Confirm the process and file requirements for your specific order.