We're always honest with customers. If someone says, "Give me a thermal label that will stay on a box in storage for 5 years", our answer is clear: "No such thermal label exists."
Thermal roll labels, printed with heat and no ink, are temporary by nature. The surface that darkened through a chemical reaction tends to fade back or darken completely over time with heat and light.
So how long does each type last, and which should you choose?
1. Eco Thermal: The Sprinter (a Few Months)
Eco thermal has no protective layer and is the cheapest option, mostly used in logistics and shipping.
- Readability: in ideal conditions (no sun, room temperature), the barcode typically stays readable for a few months.
- Risk: in sunlight it can yellow and fade within a week.
- Uses: shipping labels, deli and butcher scale labels, daily queue tickets.
2. Top-Coated Thermal: The Middle-Distance Runner (up to About a Year)
A clear top coat on eco thermal slows down the chemical reaction.
- Readability: more resistant to light and moisture, so it can last up to around a year if stored well.
- Uses: supermarket shelves, deli products, short-term storage labels.
"I Want My Label to Last for Years"
If you're labeling archive boxes, assets or spare parts that must be readable years later, don't use thermal labels.
For long-life jobs, the answer is labels printed with ink:
| Label type | Printing | Typical life |
|---|---|---|
| Eco thermal | Heat (no ribbon) | A few months |
| Top-coated thermal | Heat (no ribbon) | Up to about a year |
| Coated paper | Ink | Years |
| Opaque PP / Metallized | Ink | Many years (permanent) |
In short, there's no such thing as a thermal label that never fades; labels that last are printed with ink.
Conclusion: Choose for the Job
Buying a label that lasts ten years for a parcel is waste. Putting a thermal label that fades in months on an asset is a mistake.
Tell us the surface and how long the label needs to stay readable, and we'll suggest the most cost-effective option. Contact us.
