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3M™ Thermal Transfer Acrylate Label Material 3921 features a non-topcoated acrylate facestock. It withstands high temperatures and chemicals found in printed circuit board fabrication. The matte white facestock supports good print contrast and easy barcode readability. And the densified kraft liner makes consistent die cutting easy.

Product Safety Data Sheet

View this product on 3M's website for more information.

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Common Applications

  • Labeling on parts exposed to high temperatures
  • Printed circuit board tracking labels that see the following conditions:
    • Solder re-flow
    • Top and/or bottom side wave solder
    • Most cleaning processes and chemicals


  • Adhesive Material: Acrylic Adhesive 150
  • Water Resistant: Yes
  • UV Resistant: Yes
  • Chemical Resistant: Yes (oils, mild acids, and alkalis)
  • Facestock Color: Matte White
  • Liner Material: Densified Kraft paper
  • Thickness: 3 mil