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Why does acrylic sheeting glow? Uncovering the secrets of its fluorescence

Oct. 31, 2025

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Have you ever seen acrylic sheets that glow in the dark? They're vibrantly colored and incredibly cool. This glow isn't generated by the acrylic itself, but rather by a magical process called "light conversion."

This article details the best materials for fluorescent panels, including acrylic, PVC, and LED light sources, and analyzes their advantages and disadvantages to help you create high-quality fluorescent panels.

Acrylic: The Ideal Choice for Fluorescent Panels

Acrylic is one of the preferred materials for fluorescent panels. Its high transparency, excellent weather resistance, and superior processing properties allow it to effectively transmit light, allowing fluorescent panels to produce a bright glow at night or in low-light environments.

Fluorescence Principle

1) During production, chemical substances with fluorescent properties (fluorescent agents) are added to alter the properties of acrylic materials, absorbing ultraviolet light and converting it into visible light, thus achieving a luminescent effect

2) Add fluorescent pigment to the acrylic raw material, ensuring it mixes evenly with the acrylic resin during processing, to produce fluorescent acrylic board

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1. Key Player: Fluorescent Materials

Ordinary acrylic looks like transparent plastic. To make it glow, special "phosphors" are added during the manufacturing process. These phosphors are the true source of the luminescence.

2. Absorbing Energy and Storing Light

Phosphors have a special ability. They absorb invisible energy. The most common source of this energy is ultraviolet light.

Ultraviolet light is present in daytime sunlight, and to a lesser extent in indoor lighting. Phosphor sheets silently absorb and store this energy.

The Difference Between Afterglow and Photoluminescence

You may have noticed two types of luminescent acrylic:

Glow-in-the-dark (Afterglow) types continue to glow for hours or even longer after the lights are turned off. These types typically use "rare earth long-lasting phosphors."

Acrylic sheet fluorescence is a fascinating process of "absorption-storage-release." The acrylic itself is merely a carrier; the real star is the fluorescent material within. They absorb UV and other energy and then, in the dark, convert it into beautiful visible light, creating the dreamy effect we see.


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