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Thermal Silicone grease products provide superior thermal performance with ease of use across a multitude of applications. The low viscosity and inherent thixotropy make the technology a good fit for large-scale production with dispensing, screen printing and stencil printing.
Thermal Grease is a common silicone thermal interface material, usually used to increase thermal contact conductance across jointed solid surfaces. Thermal interface materials occupy the space of air (a very poor thermal conductor) and fill in the gaps between two solid surfaces. This establishes an effective thermal path between a heat-generating component and a heat sink attached to it, therefore greatly increasing thermal transfer efficiency.
Silicone thermal grease is a composite containing silicone and inorganic or metal nanomaterials with high thermal conductivity. Compared with thermal pads or liquid gap fillers, grease has the lower viscosity, and it can be used by dispense or screenprint, forming a thinner thermal conductivity layer with high thermal conductivity performance.
Thermal greases are designed to minimize thermal resistance at inter-faces, and maintain excellent performance through reliability testing. TG series products are offered with varying thermal impedance and thermal conductivity properties to complement different power densities in real applications. Products are also available in a range of bondline thicknesses (BLT) to meet variations in interface flatness.
Typical Thermal Grease Applications include:
The low viscosity and excellent thixotropy of thermal grease makes it ideal for dispensing and screen printing. Its nature allows for a wide range of bond line thicknesses ranging from 50 down to 7 microns.
It comes in a variety of thermal resistance and thermal conductivity options for different power densities making it highly stable and reliable. Additionally thermal grease is stable and homogeneous at room temperature storage, making it a much more flexible material to work with.
Thermal Grease can achieve the thinnest bondline thickness (BLT) out of all Thermal interface materials with thickness that goes down to 7 microns and at the same time achieves a Thermal impedance of 0.002(℃∙in²/W).
This fluctuates per product but it is a telltale sign of the portfolio properties. Grease has the lowest viscosity of the entire thermal interface product category and can be used to dispense or screen print while also maintaining exquisite thermal conductivity capabilities.
As we mentioned before, we pride ourselves in our testing capabilities and our property precision. Another aspect of testing that we take really seriously is reliability. Thermal Grease products have increased thermal reliability and can perform great in HAST, TCB and baking tests.
Thermal grease products can last up to 1400 hours in 150°C baking test, up to 96 hours in HAST, Highly accelerated temperature and humidity tests and more than 1000 hours in TCB Temperature cycling tests.
Highly Accelerated Temperature and Humidity Stress Test (HAST)
Temperature Cycling Test
High Temperature Storage