LOCTITE ECI 8120

Harmonization Code : 3909.20.00.90 | Amino-resins, phenolic resins and polyurethanes, in primary forms : Melamine resins : Other

LOCTITE ECI8120

Main features

  • Screen-Printable Flexible Heater Ink
  • Self-Regulating Low-Voltage Heating
  • PET PEN and PI Printing

Product Description

LOCTITE ECI 8120 E&C is a one-component positive-temperature-coefficient carbon ink for screen-printed low-voltage heating elements. The thermoplastic paste is printable on PET, PEN, and PI and self-regulates around 105 deg C, with a maximum operating temperature of 110 deg C. A recommended drying cycle is 10 minutes at 140 deg C using hot air or infrared. After drying, the ink provides a PTC ratio of 15 and is intended for self-regulating printed-heater designs below 50 V.

Key features

  • Screen-printable PTC ink: Carbon-filled thermoplastic paste is designed for printed self-regulating heater elements.
  • Low-voltage self-regulation: Heater designs operate below 50 V and self-regulate around 105 deg C.
  • Flexible-film substrates: Printable on PET, PEN, and PI substrates.

Applications

Applications include screen-printed self-regulating low-voltage heating elements on PET, PEN, and PI films.

Technical Specifications

General Properties
Appearance
Black paste
Density (g)
1.0 g/cm3
Solids
46 %
Thermal Properties
Operating Temperature
Max. 110 °C
Physical Properties
Thixotropic index
6.9
Viscosity
29,000 mPa.s

Additional Information

Technical properties

Undried / before-processing properties

PropertyValueUnitMethod / condition
Solids content46%Typical; TGA; undried material
Density1.0g/cm^3Typical; undried material
Viscosity29,000mPa sTypical; rheometer; 25 deg C; 5 s^-1
Thixotropic index6.9Typical; 5/50 s^-1
Theoretical coverage43m^2/kgTypical; 10 um coating thickness
Shelf life365daysTypical; 8 to 28 deg C
Technical properties

Dried / final-state properties

PropertyValueUnitMethod / condition
Adhesion on PET5BgradeTypical; cross hatch; ASTM 3359
Sheet resistance1,600ohm/sq/25 umTypical; 4-point probe; dried 10 min at 140 deg C
PTC ratio15Typical; dried material; R(T)/R(25 deg C)
Self-regulation temperature~105deg CPrinted heater application
Operating temperature, max.110deg CMaximum stated operating temperature

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