How Neon Signs Are Made

How Are Neon Signs Made?

Neon signs produce radiant self-emitted light. They contain neon, argon, other inert  gases, or combinations of various gases at low pressure. Neon gas emits a red glow. Argon can emit yellow, blue, green, or white. When the current is turned on, the tube glows with a constant fiery light. Neon signs are made by the art of bending glass tubing into various sizes and forms.