Many people wonder—what's the heart of a portable ice maker?

Look closely—this silver-gray thermal paste on the ice maker's heat sink isn't just for show. It's the

secret weapon for supercharged cooling! Think of it as a heat express lane—keeping your ice maker

at maximum chill by dumping waste heat in seconds

This thermal paste is a silicone-based compound, infused with high-conductivity fillers like silica and

metal powders for maximum heat transfer. This thermal paste was originally designed for heat-intensive

components like computer CPU and MPU. If it can handle the heat dissipation of a computer CPU, then

managing the cooling elements in an ice maker is a piece of cake

This thermal paste boasts a thermal conductivity of up to 6.0 W/m·K! What kind of concept is that?

Water has a thermal conductivity of approximately 0.6 W/m·K. As a liquid, water's ability to conduct

heat is relatively poor, which is why when boiling water, it takes time for heat to transfer from the bottom

of the kettle to the entire body of water.

Air has a thermal conductivity of approximately 0.025 W/m·K. Air is an excellent insulator (poor heat conductor),

which is also why we use cotton-padded jackets and down jackets for warmth—they have many layers of air

in between.

For 'paste' or 'grease' type products, 6.0 W/m·K is already an excellent thermal conductivity. Typical ordinary thermal

grease or thermal paste might only have 0.5 to 2 W/m·K. Achieving 6.0 W/m·K indicates that this thermal paste is filled

with a large amount of highly efficient thermal materials, which are evenly dispersed within it.

Why should it be applied very slowly and evenly?

The ideal thermal paste layer should be as thin and uniform as possible. However, thermal paste does not have high

viscosity; a paste with excessively high viscosity would become very thick and sticky, making it difficult to flow

sufficiently and spread evenly into a thin layer. Sticky paste tends to trap air, forming bubbles, and these bubbles are

'insulators' against heat. The thermal conductivity of air is very low, which severely impedes heat transfer.