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Matte White Polyimide

The Matte White Polyimide is a high-performance, thermal transfer printable material designed for pre-process labeling of printed circuit boards (PCBs) and other electronic components. With its matte finish and permanent acrylic adhesive, this label stock offers exceptional resistance to high temperatures and harsh environmental conditions, making it ideal for applications in extreme industrial environments.

Technical Specifications

  • Material Type: Polyimide
  • Finish: Matte
  • Adhesive: Permanent Acrylic
  • Print Technology: Thermal Transfer

Performance Properties

  • Short-Term High Service Temperature:
    • No visible effect at 572°F (300°C) for 80 seconds; slight discoloration at 608°F (320°C), label remains functional; moderate discoloration at 662°F (350°C), still functional.
  • Long-Term High Service Temperature:
    • No visible effect at 100°C after 1000 hours; slight discoloration at 120°C; moderate discoloration at 145°C, label remains functional.
  • Low Service Temperature:
    • No visible effect after 1000 hours at -94°F (-70°C).
  • Humidity Resistance:
    • No visible effect after 1000 hours at 100°F (37°C) and 95% relative humidity.
  • UV Resistance:
    • Topcoat turns light yellow after 1000 hours in Xenon Test Chamber; label remains functional.
  • Weatherability:
    • Slight discoloration after 1000 hours in Xenon Arc Weather-Ometer®.
  • Salt Fog Resistance:
    • No visible effect after 1000 hours in a 5% salt fog solution chamber.
  • Abrasion Resistance:
    • Print remains legible after 100 cycles with Taber Abraser, CS-10 grinding wheels, 500 g/arm.

Physical Properties

  • Adhesion to Surfaces:
    • Stainless Steel: 39 oz/in (43 N/100 mm) after 20 minutes, 49 oz/in (53 N/100 mm) after 24 hours
    • Epoxy PC Board: 32 oz/in (35 N/100 mm) after 20 minutes, 39 oz/in (43 N/100 mm) after 24 hours
  • Thickness:
    • Substrate: 0.0027 inch (0.068 mm)
    • Adhesive: 0.0017 inch (0.043 mm)
    • Total (excluding liner): 0.0044 inch (0.111 mm)
  • Tack: 56 oz (1576 g)
  • Dielectric Strength: 10,700 volts
  • Flammability: Average burn time < 2 seconds

Chemical Resistance:

The Matte White Polyimide Label Stock performs well against various chemicals, showing minimal effects in most conditions, making it highly suitable for use in harsh industrial environments.

Shelf Life:

  • Storage Conditions: 2 years from the date of receipt when stored at or below 80°F (27°C) and 60% RH in its original packaging.

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