In data centers, it is often necessary to place electrical and telecommunications cables under the raised floor from where they are taken to the racks.
If the cooling of the data center is based on the cold air blown from below the floor, the holes made for the cables may cause collapse of air pressure under the floor. As a result, areas with insufficient cooling capacity may develop in the corners of the data center (hotspot).
Koldlok products, which look like round or square grommets, are used to prevent air escaping through the seal and to keep the air pressure under the raised floor within the framework of the planned values. Grommets allow the cables to pass through squeezing them slightly from different directions while preventing the flow of air.