COTRONIC 919-1

Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg

COTRONIC 919-1

Main features

  • Electrically Insulating Ceramic Adhesive
  • Up to 2800 deg F Service
  • Combined Bonding, Sealing, and Potting

Product Description

Resbond™ 919 Electrically Resistant Adhesive is a two-part, room-temperature curing ceramic adhesive formulated to provide exceptional electrical insulation in high-temperature environments. Based on Cotronics' proprietary MgO-ZrO ceramic binder system, it offers a continuous service temperature of up to 2800°F (1538°C), 270 volts/mil dielectric strength, and 1011 ohm-cm volume resistivity. The paste consistency allows easy mixing and application, curing into a durable ceramic bond that resists thermal cycling, corrosion, chemicals, and harsh operating conditions. It is ideal for electrically insulating, bonding, sealing, coating, and potting components used in industrial heating systems, sensors, instrumentation, and other high-temperature electrical applications. :contentReference[oaicite:0]{index=0}

Key features

  • Exceptional electrical insulation – provides 270 volts/mil dielectric strength and high volume resistivity to protect electrical components operating under high voltage and elevated temperatures.
  • Ultra-high temperature capability – designed for continuous operation at temperatures up to 2800°F (1538°C).
  • Ceramic-based adhesive – formulated using proprietary MgO-ZrO ceramic binders that maintain electrical insulation even after prolonged high-temperature exposure.
  • Room-temperature curing – cures at ambient conditions without requiring high-temperature processing, with optional heat acceleration when desired.
  • Chemical and corrosion resistance – provides durable protection against harsh environments, oxidation, and thermal cycling.
  • Easy paste application – supplied as a two-component paste that mixes easily and can be applied for bonding, sealing, coating, or potting applications.
Product Family

COTRONIC 919-1

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
Two Part
Compression Pressure
316.38 Kg/cm2
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
100:13
Thermal Properties
Thermal Conductivity
Thermal conductivity describes the ability of a material to conduct heat. It is required by power packages in order to dissipate heat and maintain stable electrical performance. Thermal conductivity units are [W/(m K)] in the SI system and [Btu/(hr ft °F)] in the Imperial system.
0.577 W/m.K
Electrical Properties
Dielectric Strength
Dielectric strength is measured in kV per mm and is calculated by the Breakdown voltage divided by the thickness of the tested material. Those two properties go hand in hand and while Breakdown voltage is always thickness dependent, dielectric strength is a general material property. As an example, the dielectric strength of Polyimide is 236 kV/mm. If we place 1mm of Polyimide between two electrodes, it will act as an insulator until the voltage between the electrodes reaches 236 kV. At this point it will start acting as a good conductor, causing sparks, potential punctures and current flow.
0.27 kV/mm
Volume Resistivity
Volume resistivity, also called volume resistance, bulk resistance or bulk resistivity is a thickness dependent measurement of the resistivity of a material perpendicular to the plane of the surface.
10^11 Ohms⋅cm

Additional Information

Applications

Resbond™ 919 is designed for high-temperature electrical insulation where ceramic bonding performance, dielectric strength, and long-term reliability are required.

  • Heating elements and furnace equipment – bonds and electrically insulates heating coils, furnace elements, and high-temperature resistors.
  • Thermocouples and instrumentation – suitable for sealing, potting, and protecting thermocouples, sensors, ignitors, and measurement devices.
  • Electrical insulation – bonds electrode rods into ceramic tubes and protects against voltage breakdown in demanding environments.
  • High-temperature sealing and coating – seals light fixtures, ceramic assemblies, fiberglass-insulated wires, and electrical components exposed to heat and corrosion.
  • Industrial process equipment – ideal for applications requiring electrically insulating ceramic bonds in thermal processing, power generation, and industrial manufacturing.

Additional information

  • Two-component ceramic adhesive – supplied as a paste with a 100:13 mix ratio for convenient preparation.
  • Maintains electrical properties at high temperature – proprietary ceramic binders retain dielectric strength and insulation performance during prolonged heat exposure.
  • Excellent thermal cycling resistance – formulated to minimize cracking and maintain bond integrity through repeated heating and cooling cycles.
  • Multi-purpose ceramic solution – suitable for bonding, coating, sealing, and potting electrical components operating in extreme environments.
  • Designed for industrial reliability – widely used in heating equipment, furnaces, sensors, ignitors, instrumentation, and other high-temperature electrical assemblies.

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