Polyonics - Innovative label and tape materials for Harsh Environments 

HIGHdegree MT-3620 - 1112 °F (600 °C) Tags for Metal Manufacturing Factories and Foundries

Specially engineered MT-3620 tags go to 1112 °F (600 °C) to stand up to the punishing demands of metal manufacturing factories and foundries.

Get To Know The MT-3620 Tag

Polyonics' new 5 mil polyimide tag is highly engineered with an extreme-temperature resistant coating that ensures tracking of your material through the manufacturing process, reducing the time associated with rework and the high cost of product recalls.

  • High tear strength helps resist unintended removal of the tag during storage and delivery
  • Post-furnace, in-process tagging
  • For applications up to 1112 °F (600 °C)


Reliability. To the extreme.

The Polyonics HIGHdegree portfolio of label and tag materials thrives on the extreme temperature ranges encountered throughout the metal manufacturing process so you can accurately control inventory.


  FILM: 5 mil Polyimide tag     FINISH: White gloss 1 side/matte 1 side     ADHESIVE: N/A     MT-3620 Temp: 1112 °F (600 °C)


Download the MT-3620 TDS


High degrees of accuracy and confidence.

With HIGHdegree, you can make the move to automated systems, eliminating the health and safety risks that come with hot metals while delivering the track and trace accuracy your customers demand.


Try The MT-3620 HIGHdegree Tag - Get Your HIGHdegree Sample Now!

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HIGHdegree Brochure

hot metal track and trace HIGHdegree brochure download

Press Releases

High-Temperature Tags and Labels

Polyonics Offers High-Temperature Tags and Labels for Extreme Track and Trace Applications in Metals Processing Factories

Westmoreland, NH, January 13, 2021 – Polyonics®, a leader in high temperature and harsh environment label and tag materials, announced today a new line of materials specially engineered to stand up to the punishing demands of metal processing.

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