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Creative Materials 128-21C

128-21C is a jet or syringe dispensable, thermally conductive, electrically insulating, pre-catalyzed epoxy adhesive. This system features excellent thermal stability, outstanding chemical resistance and excellent high temperature properties. Unlike conventional thermally conductive epoxy adhesives, 128-21C is flexible and can absorb stress when bonding mismatched CTE substrates. Applications include die attachment, printed circuit board fabrication, advanced material composites, LED attachment and heat sink bonding. 128-21C is a version of 125-31C optimized for jet dispensing.\nFeatures

Product families

Applications

Electrical & Electronics — Parts & Components
  • Printed Circuit Boards (PCBs)

Product Families

Ready-to-Use Products — Adhesives & Sealants
  • Conductive Adhesives

Other characteristics

Product Type

1K (1 component) Adhesive, Conductive Adhesive, Epoxy Adhesive; 1K (1 component) Adhesive; Conductive Adhesive; Epoxy Adhesive

Application Method
Injection
Markets
Electrical & Electronics
Shelf LIfe

3 months at -10°C, 4 days at 25°C, 6 months at -40°C

Technology
Ready-to-Use Products
Safety and Handling

Use with adequate ventilation.; Keep away from sparks and open flames.; Avoid prolonged contact with skin and breathing of vapors.; Wash with soap and water to remove from skin.

Application Methods
Injection
Certifications and Compliance
  • ISO 14001
  • ISO 9001
Ready to Use Product Features
  • Chemical Resistant
  • Electrically Insulating
  • Good Thermal Stability
  • High Flexibility
  • High Modulus
  • High Temperature Performance
  • Medium Modulus
  • Thermally Conductive
Handling Instructions

Material is ready to use as received. If frozen remove product from freezer and allow material to warm to room temperature before opening container. Good results are obtained when the product is cured at one of the following schedules but longer times and higher temperatures will always provide improved properties.

Technical data

Table 1 of 1

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CharacteristicValueUnit
Pot Life4 days—
Conductivity3.1W/mK
Viscosity (10 s-1)135000cps
Thixotropic lIndex (1/10 s-1)min. 2.5—
FillerNitride blend—
Volume Resistivitymax. 1X 10^16Q-cm
Useful Temperature Range-55 to 230ºC
Thermal StabilityGood to +325°C
Lap Shear Strength1800psi
Glass Transition Temperature (TMA)92°C
Coefficient of Thermal Expansion below Tg61ppm/°C
Coefficient of Thermal Expansion above Tg209ppm/°C

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