1,200 °C: When labelling must remain intact News | 25.02.2026

Withstands extreme heat: Reliable processes thanks to GRAPHITHERM^® labelling

Steel production and metal processing involve challenging conditions that put great strain on people and materials alike. A critical point in the logistics chain is identifying workpieces immediately after the forming or casting process. When red-hot steel leaves the furnace, standard solutions are rendered ineffective. This is where S+P Samson sets new standards: GRAPHITHERM^® labels have been specially developed for use at temperatures of up to 1,200 °C.

Why labelling hot objects is crucial

The digitalisation of the process chain does not stop at heavy industry. Operations and IT managers must keep data streams and material flows synchronised. Manual labelling after cooling is error-prone and delays the entire process. GRAPHITHERM^® enables information such as batch numbers, dimensions or QR codes to be applied directly to the glowing material. The result? Complete traceability from the very first second.

Fire-resistant technology

The unique feature of the GRAPHITHERM^® series is its special structure. While organic materials burn immediately at these temperatures, this solution is based on a highly resistant combination of materials. When used with special thermal transfer ribbons, the print image remains high-contrast and machine-readable even after exposure to extreme heat.

The video shows a label being applied directly to a solid, red-hot steel part. Despite the intense radiant heat and direct contact, the label retains its dimensions and the information remains legible.

Advantages for intralogistics and quality assurance:

• Time savings: No waiting times due to cooling phases before marking.
• Error prevention: Elimination of confusion due to immediate identification.
• Durability: Resistant to chemical influences and mechanical stress during transport.

As experts in labelling solutions for harsh environments, we understand the specific requirements of logistics and quality managers. GRAPHITHERM^® is not just a label; it is a building block for efficient digital production in steel and heavy industries..