Auto Glow Signage (Radium Sign Board) – Photoluminescent Safety Signs

Auto glow safety signs are made with photoluminescent material. They soak up light during the day, or from normal room lighting, and glow softly when it goes dark. They need no electricity or battery, which is why they are used for fire exit and emergency escape signs. In the trade they are often called radium signs, radium sign boards, night glow signs or glow-in-the-dark signs, and the same material is sold as auto glow signage and photoluminescent signage.

How auto glow works

The material contains a pigment (usually strontium aluminate) that stores light and releases it slowly. The glow is strongest soon after the lights go out and fades gradually over time, so these signs are meant to help people find the way out in a power cut, not to replace emergency lighting. Keep each sign in a place that gets regular light so it stays charged.

Is auto glow the same as radium?

No. Old radium paint glowed because it was radioactive. Modern auto glow signs are photoluminescent: they glow only because they stored light, and the material is non-toxic and not radioactive.

Which signs should be auto glow?

We recommend auto glow for fire exit, escape route, direction, assembly point, fire extinguisher and fire equipment signs, and for any sign that must be read in a power cut. Mandatory, prohibition and hazard signs can also be made in auto glow when the area is dark.

Base material and finish

You choose the base and the finish. We make signs on Sunboard, ACP (aluminium composite panel) or Acrylic, finished in auto glow or vinyl as your requirement. Tell us where the sign will be fixed (indoor or outdoor), the size and the quantity, and we will suggest the right combination.

Standards

In India, IS 12349:1988 covers fire protection safety signs, with their shapes, colours and symbols. If your project follows a specific standard or has a fire officer's requirements, send them to us before ordering.

Order auto glow signs in Delhi NCR

Sign & Display Solutions, F-713, Lado Sarai, New Delhi 110030 · +91 99586 57208 · Request a quote