Luminous paint is a type of paint that glows in the dark after being exposed to light. It contains special pigments that absorb light energy and then release it slowly, creating a glowing effect. This paint is often used for decorative purposes, safety markings, and artistic projects. The glow-in-the-dark effect can last for several hours, depending on the quality of the paint and the amount of light it absorbs. Luminous paint is commonly found in products like stars for ceilings, safety signs, and toys, making it a popular choice for both functional and creative applications.