LOCTITE 315
- Self shimming
- Thermally conductive
- Bond electrical components
Product Description
LOCTITE® 315 is a blue, 1-part, self-shimming, thermally conductive, highly viscous, modified acrylic adhesive paste for bonding electrical components to heat sinks with an insulating gap.
LOCTITE® 315 provides excellent heat dissipation while the controlled strength permits field and service repair. It produces a consistent 5 - 6 mm gap between the component and heat sink.This gap results in electrical insulation while maintaining thermal conductivity. Typical applications include bonding transformers, transistors and other heat generating electronic components to printed circuit board assemblies or heat sinks. In high pot applications this product should be limited to a maximum of 500 volts. Activator 7387™ is required for proper curing of Loctite® Output™ adhesives
Cure Schedule
- Requires Activator 7387. 1h @ RT - 22°C and the adhesion increases with time.
Technical Specifications
| General Properties | |||||
| Specific Gravity 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. | 1.66 | ||||
| Physical Properties | |||||
| Viscosity Viscosity Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application | 360,000 mPa.s | ||||
| Mechanical Properties | |||||
| Elongation 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. | 1 % | ||||
| Electrical Properties | |||||
| 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. | 1.3x1012 Ohms⋅cm | ||||
| Thermal Properties | |||||
| |||||
| 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. | 0.8 W/m.K | ||||