Have you ever noticed the bright green exit signs in a dark building? Did you know that these signs are called photoluminescent exit signs and are made without requiring electricity? Though, in reality, it’s the science of photoluminescence. In this blog, you are going to explore the process of making these signs and why they are an important safety feature in buildings.
What Are Photoluminescent Signs Made Of?
Photoluminescent exit signs are made from a combination of materials that glow in the dark, absorb light, and slowly release it, creating long-lasting illumination even when the power goes out. The materials used in making these signs include photoluminescent pigments, vinyl films, and adhesives.
How Are They Made?
The first step in the process is mixing the photoluminescent pigments with other materials that coat the vinyl film and adhesive. The mixture then forms a photoluminescent film that produces light when struck by light or when an electric charge stimulates it.
The next step is printing the film onto the vinyl material. The ink must be of good quality and applied correctly to ensure the sign's brightness and longevity. After printing, the vinyl film undergoes a manufacturing process that turns it into individual signs. Once the signs are cut to the correct size, they're backed with pressure-sensitive adhesive so that they can be installed easily in any location.
Moreover, the photoluminescent film is available in different colors, with green being the most common. Green is the most effective color for photoluminescent exit signs because the human eye can detect it more easily, even in the dark. Additionally, the signs are manufactured with strict safety regulations in mind to make sure they are visible enough to locate exits clearly during emergencies.
How Do They Stay Lit Up?
In most cases, photoluminescent exit signs require no electricity or batteries, offering an environmentally friendly, cost-effective option for building safety. As a result, they have become mandatory in most commercial and public buildings worldwide. Photoluminescent exit signs not only help people evacuate the building safely, but they also meet regulatory standards for fire safety and other industry-permitting requirements.
Photoluminescent exit signs are a critical component of building safety, providing a long-lasting, energy-efficient solution for guiding people to safety during emergencies. The process of making these signs can seem complicated, but the result is a durable, high-visibility sign that requires no electricity, maintenance, or replacement batteries.
Contact a local company to learn more about photoluminescent signs, including UL 924 exit signs.