UV Fluid

Product Code : SCL-CLE-12863

Quick Answer: The UV Fluid is liquid paraffin containing a UV-sensitive photochromic dye that is clear indoors and becomes coloured when exposed to natural light. It is supplied as a 50ml jar.

Last updated: October 2026

Key Features

• Liquid paraffin containing a UV-sensitive photochromic dye
• Appears clear indoors
• Becomes coloured in natural light, more intensely in direct sunlight
• Reversible colour change, becoming clear again in about 60 seconds
• Reacts to natural UV light or a lamp
• Supplied as a 50ml jar

About This Product

The fluid shows photochromism, a reversible colour change caused by ultraviolet light. It becomes coloured when exposed to natural UV light or a lamp and takes around 60 seconds to become clear again.

Frequently Asked Questions

How long does the UV Fluid take to become clear again?

The colour change is reversible, and the liquid takes about 60 seconds to become clear again.

What light makes the fluid change colour?

It reacts to natural UV light or a lamp, and the colour becomes more intense in direct sunlight.

How is the UV Fluid supplied?

It is supplied as a 50ml jar.

Related: Chemistry Lab Equipment, Photochromic Pigment: Magenta - 3g, Mixed Smart Materials Collection.

For a quotation on the UV Fluid, contact School Lab China.