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50ml - Magenta to Clear at 31C Thermochromic Colour Changing Screen Printing Ink Paint for Paper & Board

50ml - Magenta to Clear at 31C Thermochromic Colour Changing Screen Printing Ink Paint for Paper & Board

£8.50 GBP
£8.50 GBP
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Description

This ink disappears at 31C revealing hidden print below it. It can be used for leaflets, game cards, stickers and collector cards, magazine covers, quiz cards, on-pack promotions, and P.O.S material. The black version of this product was used by a newly launched bank to a 20,000 strong targeted database. A mailer card used a black ink panel on the front of the card which asked the recipient if they were Gold-Fingered? When touched the panel changed colour from black to transparent showing the gold below. Thermochromic inks react to changes in temperature by exhibiting a colour change. This 50ml pack comprises 25ml slurry and 25ml binder, which when mixed, produces a thermochromic ink that can be applied to Paper and Board, and by the addition of a different binder can also be applied to Textiles. The slurry and binder need to be mixed together in equal amounts, in order to create a finished ink. Thermochromic inks are a darker colour when colder than their temperature activation point, and lighter in colour or virtually clear when warmer than the activation point. These are inks are part of a line of eye-catching temperature sensitive (thermochromic) finished inks, formulated using the latest printing ink techniques. The ink colour on a printed item disappears as the temperature rises above the response temperature of the thermochromic ink and then it reverses back to its original colour as the temperature is reduced again (below the response temperature). Our inks are available in several colours and can be featured in a variety of applications including high end promotional items, advertising, labels, packaging, security documents, textiles, toys, novelties ...................

  • This thermochromic ink goes almost transparent when you touch it with warm hands.
  • This thermochromic ink can be screened onto paper and board substrates.
  • Typical ink consumption for Water Based Screen Ink on a 70T mesh is approximately 30-35ml per sqm. When obliterating an image, 2 passes may be required.
  • Make your project stand out with this vibrant magenta thermochromic screen ink! Everybody goes for black.....Be different!
  • If you would like to talk to us about our products please call us on: 0207 1183123 We are always happy to help.

Shipping & Delivery

We ship worldwide using trusted partners, with same-day dispatch on orders placed before 1 pm (subject to stock) and free UK delivery on orders over £50.

Every order is tracked, carefully packed, and arrives in excellent condition — with biodegradable packaging used wherever possible.

Shop with confidence with easy returns and exchanges!

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What Our Customers Say

Great experience from start to finish. The materials were top quality and added a unique touch to our product launch. Arrived on time and well-packaged.
James T
Fantastic service and even better products. The colour change effects are so cool and exactly what we needed. Can’t wait to use them again for future designs!
Amelia K
Really impressed with the colour-changing inks! They worked perfectly for my project and the customer service was super helpful. Fast delivery too — highly recommend
Sophie R

Frequently Asked Questions

Who are Colour Changing ?

Colour Changing is a global pioneer in smart materials, specialising in advanced colour-changing technologies for over 30 years. Founded by Jeremy Dredge, we’ve grown from a family business into an international enterprise with facilities in the UK and Spain, delivering innovative, science-backed solutions worldwide.

What technologies do you offer ?

Our core technologies include thermochromic, photochromic, and hydrochromic inks, paints, and coatings — materials that change colour with temperature, light, or moisture. Every product is developed to the highest standards of quality and performance.

How do you support businesses ?

We help businesses enhance safety, efficiency, and customer engagement through:

  • Intelligent supply chain indicators (shock, tilt, temperature)
  • Covert product authentication features
  • Interactive, eye-catching packaging
  • Memorable promotional products
How do you help creatives and designers ?

Our materials power innovation in:

  • Interactive art that responds to viewers and the environment
  • Product designs with dynamic colour-changing effects
  • Fashion items that shift with light and temperature
What makes Colour Changing different ?

Our team blends science, design, and decades of experience to deliver bespoke, high-performance smart materials. We're driven by innovation and collaboration, helping clients turn creative ideas into real-world impact.

Do you offer custom solutions and support ?

Absolutely. We collaborate closely with clients to develop tailored solutions, offering R&D, material sourcing, consultancy, and support from concept to installation.