Thermal Gap Fillers

What are thermal gap fillers?

A thermal gap filler is a piece of material that gets into tiny pockets of air between components and casings. They fill the space to allow for optimal heat resistance in a heat-generating component. This enables enhanced performance and in some cases efficiency in the component or the device. 

Gap fillers can be used to fill air gaps between components of PC boards and heat sinks, metal enclosures, and chasses as well as other items. They are ideal for applications where gap tolerances are present due to stepped or rough surfaces. Thermal gap filler materials allow designers and engineers to be less concerned with components’ proximity to heat sinks or heat spreaders.