Photochromic Pigment – Blue, 3g [8957]

The Photochromic Pigment (Blue) is a fascinating, light‑responsive material that changes colour when exposed to sunlight or ultraviolet (UV) light. In normal indoor lighting, the pigment appears pale and off‑white, but when exposed to UV light it instantly transforms into a bright, vivid blue. Once the UV source is removed, the pigment gradually returns to its original pale colour.

Supplied in a convenient plastic syringe containing 3g of pigment, this product allows for accurate dispensing and minimal waste. When mixed with a suitable binder such as an acrylic base, the pigment can be permanently applied to almost any surface, including paper, card, plastics, wood, and other craft or experimental materials.

The strength of the colour change depends on the concentration of pigment used. A more concentrated mixture produces a stronger colour response, while a dilute mixture gives a more subtle effect. Mixing ratios are best explored experimentally; however, a 50:50 pigment‑to‑binder ratio is recommended as an effective starting point.

Key Features

• Photochromic blue pigment that reacts to UV light
• Changes from pale off‑white to vivid blue
• Reverts back when UV light is removed
• Supplied in a 3g plastic syringe for easy handling
• Can be mixed with acrylic or other binders
• Suitable for application to a wide variety of surfaces
• Colour intensity adjustable by changing mixing ratios

Ideal for School Science Lessons

Ideal for KS3, GCSE, and A‑Level science lessons, this photochromic pigment provides an engaging, hands‑on way to explore the effects of light on materials. It is particularly useful for:

• Demonstrating UV light and energy transfer
• Investigating reversible chemical and physical changes
• Exploring light‑sensitive materials
• Supporting cross‑curricular science and art projects
• Encouraging experimental design through mixing ratios and testing

Visually striking and easy to use, the Photochromic Pigment (Blue) is an excellent resource for bringing abstract concepts about light and materials to life, helping students develop curiosity, observational skills, and scientific understanding.