LOCTITE EA 11C
Harmonization Code : 2901.10.00.00 | Acyclic hydrocarbons; Saturated
Main features
- Machinable, Low-Outgassing Cured Material
- Bonds Metals, Most Plastics and Wood
- Room-Temperature or Heat Cure
Product Description
LOCTITE EA 11C is a black, two-part epoxy adhesive and sealant for general-purpose bonding, sealing, and repair of metals, most plastics, and wood. The resin and hardener mix at 100:38 by weight or 2.5:1 by volume and provide at least 20 minutes of pot life at 25 °C. The system cures at room temperature or with heat, reaches handling strength in approximately 3 to 4 hours at 25 °C, and develops full cure after 72 hours at 25 °C. Once cured, the material can be machined and sanded and has documented high-service-temperature and low-outgassing characteristics.
Key features
- Multi-material bonding and repair for metals, most plastics, and wood.
- Room-temperature or heat cure with at least 20 minutes of pot life at 25 °C.
- Machinable, low-outgassing cured material with documented high-service-temperature capability.
Applications / Suitable for
- General-purpose bonding, sealing, and repair of metals, most plastics, and wood.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Appearance
Black / Green
Appearance at room temperature.
Component System
Two (Resin / Hardener)
Describes the number of components that must be supplied, mixed, or activated before application or cure.
Mix Ratio
100 : 38 by weight
The amount of a constituent divided by the total amount of all other constituents in a mixture
Pot Life
≥20 minutes
Pot life is the amount of time it takes for the viscosity of a material to double (or quadruple for lower viscosity materials) in room temperature after a material is mixed.
It is closely related to work life but it is not application dependent, less precise and more of a general indication of how fast a system is going to cure.
Specific Gravity
1.6 / 1.67
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.
Thermal Properties
Glass Transition Temperature (Tg)
114 °C
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding.
The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
Thermal Conductivity
0.75 W/m.K
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.
Electrical Properties
Dielectric Strength
18.5 kV/mm
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.
Volume Resistivity
5.0×10¹⁴ Ohms⋅cm
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.
Other Properties
Storage Temperature
8-21 °C
