Absolutely loved the products! The quality exceeded my expectations and shipping was incredibly fast. Will definitely be ordering again.Sarah Johnson
Description
Thermochromic ink is Red below 31°C and translucent above 31°C. It stays red at room temperature and clears with the warmth of a hand.
Thermochromic Ink is a magical coating that changes colour when exposed to certain temperatures.
By rubbing the coated surface with your hand or using a heat source above 31°C, the ink will become translucent and reveal what is beneath. When the ink cools below its activation temperature, it returns to red. This change repeats itself again and again.
Our thermochromic ink comes in 2 parts (slurry and binder), which must be mixed 50/50 prior to use. You cannot use the slurry without the binder, as the ink will simply dry and fall off; the binder is what fixes the slurry to the surface. Tell us your application and we'll advise on printing it.
Our products can be screen printed onto textiles, paper and board. Please let us know if this product is being applied to different substrates such as wood, plastic, metal, glass or ceramics. It is best to apply this ink using thin coats. Apply via screen printing or a foam roller; avoid brushes, which can't apply the ink thinly or evenly enough.
If using heat to dry the print, keep it low and short: stay below 180°C, as briefly as possible, and avoid prolonged heat above 75°C. Brief heat at 100°C for 1–2 minutes is fine.
Use to hide messages or text that appear at a touch.
Storage: Keep it in a cool, dark place, ideally at 20°C or below, with the lid tightly closed, and use within 12 months. Don't let it freeze, and don't store it with food or drink. Direct sunlight and UV damage the thermochromic materials.
Before use, please read the Technical Data Sheet (TDS) and the Safety Data Sheets for the thermochromic slurry (SDS) and the binder (SDS). For step-by-step advice on paper, board and fabric, read our guide: How to screen print thermochromic ink →
The information supplied in this product description is for guidance only.
Please fully test our products before print runs, projects, installations and production.
Colours and packaging may vary.
What Our Customers Say
Great customer service and even better products. The team went above and beyond to make sure I was satisfied with my purchase.Mike Chen
I've been shopping here for over a year now and the quality is consistently excellent. Highly recommend to anyone looking for reliable products.Emma Davis
Frequently Asked Questions
Who is SFXC ?
SFXC is a family-owned UK-based business specialising in innovative and creative materials for commercial, domestic, and educational projects. Since launching in 2008, we’ve grown into a trusted brand for special effects and smart materials worldwide.
What makes SFXC different ?
As smart material specialists, we not only source, manufacture, and distribute unique pigments, coatings, and plastics — we also offer expert advice, extensive testing, and a passion for pushing the limits of creativity.
What industries do you work with ?
We work with everyone — from artists and universities to automotive giants, film productions, fashion labels, printers, space exploration, and even the military! If your project needs a creative spark, we’re here to help.
What special effect materials do you offer ?
Our technologies include Liquid Crystal, Thermochromic, Photochromic, Hydrochromic, Glow in the Dark, Fluorescent, Pearlescent, Colour Changing, Holographic, Conductive, Reflective, Scented, Invisible, and Infrared materials. We also offer a range of additives and binder systems.
Do you offer project support ?
Absolutely! Our full Design Service can help with R&D, material sourcing and consultancy, product design and manufacturing, direct marketing, print and design, and installations. We love helping our customers bring their ideas to life.