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4 Pack Hot Warning Label Stickers - Changes Colour at 50°C

4 Pack Hot Warning Label Stickers - Changes Colour at 50°C

£4.99 GBP
£4.99 GBP
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Description

Hot Warning labels are an invaluable tool for maintaining safety around the home or workplace and preventing injury from extreme temperatures.

They remain black in colour until 50°C is reached. A red image will appear above 50°C, indicating the surface is too hot and is unsafe to touch.

These labels remove the need for protective safety covers and aid in lowering heating costs. Simply apply the label firmly onto a dry, clean and solid surface in a visible position on radiators, pipes etc. The label will switch back to black at approx. 105°C.

Supplied in a pack of 4, each label is 37mm in diameter.

Alternative temperatures can be produced on request. Please contact us.

These labels will retain their accuracy for up to 12 months, however they can sustain an accuracy of +/-2°C, over a 10 year period.

Store this product in cool, dry place away from direct sunlight, UV light and extreme temperatures below – 5 above 40°C.

    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.