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Free samples · 3–5 day air
Euphora
Problem Nº 07 of 10
§ Field Problem · Nº 07 High-Temperature

“I need a label that
survives the heat.

The temperature ceiling is set by the substrate, not the ink. PVC vinyl tops out at 80 °C; PET takes 150 °C; polyimide handles 200+. The right material depends entirely on how hot it actually gets.

Find my material → High-Temp Pack

The Euphora scale

Levels,
measured not marketed.

Manufacturers love absolute claims. We made a scale because “high-temperature” means different things in different jobs. Pick the level your job actually requires.

0
Ambient only
Standard vinyl, paper. Softens above 60 °C.

Materials at this level

Paper, standard Vinyl
1
Warm (up to 80 °C)
Stovetop adjacent, dish-warming, dehydrator.

Materials at this level

Heat-resistant Vinyl
2
Hot (up to 120 °C)
Sterilisation, hot-fill jam, oven-adjacent.

Materials at this level

PET
3
Very hot (up to 150 °C)
Cooking direct (oven labels), commercial steam, automotive.

Materials at this level

Specialty PET, polyimide
4
Industrial (up to 200 °C)
Soldering proximity, automotive engine bay, manufacturing.

Materials at this level

Polyimide film, high-temp specialty
5
Extreme (over 200 °C)
Solder reflow ovens, kilns, ceramic firing.

Materials at this level

Ceramic-coated polyimide (made-to-order)

Lab Report · High-Temperature

Tests every plate had to pass.

01
+80 °C continuous, 7 days
✓   No deformation
PET, Specialty, Polyimide
02
+120 °C sterilisation cycle
✓   No edge lift
PET (high-temp), Polyimide
03
+150 °C automotive cabin exposure
✓   No fade, no peel
Specialty PET, Polyimide
04
+200 °C engine bay (10 min)
✓   No deformation, no fade
Polyimide only
05
+260 °C solder reflow (60 s)
✓   No discolouration
Ceramic-coated polyimide

Field Notes

Questions we
get most weeks.

Q. 01
Can I use vinyl on oven labels?
No. PVC vinyl softens above 80 °C. Use PET for any oven-adjacent application, polyimide for direct oven contact.
Q. 02
What about steam sterilisation (autoclave)?
Standard PET handles autoclave cycles up to 121 °C for 30 minutes. Specify steam-rated PET for repeated cycling.
Q. 03
Are there food-safe high-temperature materials?
PET carries FDA / EFSA food-contact approvals at high temperature. Polyimide is not typically food-contact rated.
Q. 04
What about labels for direct flame contact?
No commercial sticker substrate handles direct flame. For oven-cooking applications, use a printed metal tag, not a label.

Press Run

Test it at
your own temperature.

Sample packs ship 3–5 day air to qualified buyers. Test the material in your real environment, with your real product, before committing.