The Blank Make Your Own Corrugated Plastic Sign 18 in. is a lightweight, weather-resistant sign blank designed for creating custom indoor and outdoor signs. Made from durable corrugated polypropylene, it is easy to write on, paint, apply vinyl lettering to, or decorate for business, real estate, political campaigns, events, and directional signage.

• Durable corrugated polypropylene (Coroplast®-style) construction
• Lightweight yet rigid for reliable indoor and outdoor use
• Weather-resistant and moisture-resistant design