3M 8N

Harmonization Code : 3910.00.00.90 | Silicones in Primary Forms; Others

3M 8N

Main features

  • Low-Viscosity Electrical Encapsulation
  • Room-Temperature Epoxy Cure
  • Semi-Flexible 68 Shore D

Product Description

3M Scotchcast Electrical Resin 8N is a two-part, unfilled liquid epoxy resin system for electrical and electronic coating, filling, insulation, and encapsulation. The semi-flexible material is designed for room-temperature cure, with a 30-minute gel time at 60 deg C. After cure, the resin has 68 Shore D hardness, a Class B temperature rating of 130 deg C, and 75% elongation. Its low-viscosity liquid form supports filling and encapsulation around complex electrical and electronic assemblies.

Key features

  • Low-viscosity unfilled epoxy: The liquid, unfilled epoxy form supports coating, filling, patching, and encapsulation around electrical components.
  • Room-temperature cure capability: The resin has a low gel point for room-temperature cure, with a 30-minute gel time at 60 deg C.
  • Semi-flexible cured properties: The cured resin combines 68 Shore D hardness with reported 75% elongation for electrical insulation and encapsulation use.

Applications

Applications include coating, filling, patching, insulating, and encapsulating coils, transformers, motors, modules, and electrical or electronic components.

Product Family

3M 8N

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
Clear Amber
Component System
Describes the number of components that must be supplied, mixed, or activated before application or cure.
Two
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
1.12
Other Properties
Storage Temperature
20 - 30 °C
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
75 %
Electrical Properties
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.
10¹³ Ohms⋅cm

Additional Information

Technical properties

After-processing / final-state properties

PropertyValueUnitMethod / condition
Hardness68Shore DCured resin
Temperature rating130deg CClass B temperature rating
Elongation75%Cured resin
FlexibilitySemi-flexibleCured material classification

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