Photochromic Pigment – Magenta (3g)

This high‑quality Magenta Photochromic Pigment appears as a pale, off‑white powder under normal indoor lighting, but when exposed to sunlight or UV light it instantly transforms into a bright, vivid magenta. Once the UV source is removed, the pigment gradually returns to its pale colour, allowing repeated demonstrations and experiments.

When mixed with a suitable binder—such as an acrylic base—the pigment can be applied permanently to a wide range of surfaces including plastics, paper, card, fabrics and more. The intensity of the colour change depends on the concentration of pigment used: more dilute mixtures create a softer effect, while stronger mixtures produce deeper colour shifts. A 50:50 mix is recommended as a starting point for experimentation.

The pigment is supplied in a 3g plastic syringe, allowing easy, accurate dispensing while minimising waste and mess.

Key Features

• Changes from pale/off‑white to vivid magenta under UV or sunlight
• Reverts to original colour when UV light is removed
• Mix with acrylic base or binder for permanent application
• Adjustable concentration for strong or subtle colour‑change effects
• Supplied in a convenient 3g syringe for easy dispensing
• Ideal for art, design, STEM projects and material science demonstrations

Ideal for School Science Lessons

Perfect for KS3, GCSE and A‑Level science and design & technology, this photochromic pigment supports hands‑on learning in:

• Photochromism and light‑responsive materials
• UV radiation and its effects on materials
• Exploring reversible chemical and physical changes
• Designing colour‑changing products and surfaces
• Experimental work with material mixtures and binders

Engaging, safe and easy to use, this Magenta Photochromic Pigment is an excellent resource for exploring light‑responsive smart materials in both scientific and creative contexts.