LINQBOND PM-1231 | Two part epoxy potting material


Main features
  • High resistance against weathering, aging, and UV radiation
  • Non-corrosive, insulating, moisture-proof, and shock-resistant
  • Solvent-free, environmentally friendly, and low in carbon footprint

Product Description

LINQBOND PM-1231 is a two-component potting epoxy designed for casting, bonding, and sealing electronic components. It boasts outstanding aging and moisture resistance, excellent electrical insulation, high hardness, and a high breakdown voltage. Additionally, PM-1231 offers exceptional weather, UV, and shock resistance, while remaining non-corrosive and environmentally friendly. LINQBOND PM-1231 is well-suited for potting electronic components and modules that require high transparency, especially for potting digital tubes at room temperature.

Product Family
PM-1231  
10kg pail - part B 10kg pail - part A

Catalog Product

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Packaging
TDS, SDS & Technical documents

Technical Specifications

General Properties
Chemistry Type Epoxy
Mix Ratio
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
 2:1
Electrical Properties
Dielectric Strength
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.
 ≥25 kV/mm
Volume Resistivity
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.
 1.2×10²⁴ Ohms⋅cm
Mechanical Properties
Hardness
Hardness
Hardness is a dimensionless quantity. There is no direct relationship between measurements in one scale and their equivalent in another scale or another hardness test.
Durometer (Shore D) 80
Molded Shrinkage 0.8 %
Thermal Properties
Operating Temperature –40 to 90 °C
Thermal Conductivity
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.
 0.3 W/m.K

Additional Information

Processing Instructions

  1. Before potting, make sure the surface is clean. Remove any oil or dust.
  2. Mix component A and B according to specified ratio. Stir thoroughly to ensure uniformity while preventing air to be introduced into the mixture. Automatic mixing and filling machine can be used. Scrape the sides of the container to ensure even mixing until the color is consistent throughout.
  3. Use the mixture within 30 minutes.
  4. Allow the potted workpiece cure at room temperature until the surface is dry. Full curing typically occurs within 48 hours. The curing process is influenced by temperature variations; generally, higher temperatures result in faster curing, while lower temperatures lead to slower curing.

Precautions for Use

  1. Before use, thoroughly mix Part A. Stratification may occur during long-term storage due to its high specific gravity. Mixing ensures consistent product performance. Do this in a well-ventilated area.
  2. Use all of the mixed Part A and B at once. Seal and store any components for future use.
  3. Typically, keep the potting thickness within 30mm. For deeper potting, contact the manufacturer for guidance.

Please note that the provided information is based on available data and typical conditions. For specific applications and detailed test results, refer to the actual test data and conduct appropriate certifications.

Storage and Handling

The product can withstand long-term exposure to fresh water, sewage, waste water, calcium carbonate aqueous solution, detergent, low-acid, and corrosive water solutions. It has short-term resistance to mineral oil, vegetable oil, fat, and fuel. However, it is not resistant to organic solvents, paint thinners, high-concentration acids, or alkalis.

Store in a ventilated, dry, and clean environment at 10–30 °C. Keep away from fire and heat sources. It is strictly forbidden to store in outdoor environments. At proper storage conditions, Part A and Part B has a shelf life of 6 months. Shelf life can be extended by using cold storage.