Task

A self-propelled cleaning robot for private swimming pools needed a connection cable that does not get tangled up under water or runs the danger of bringing the robot to a stop. .

Technical challenge

The material-dependent mass of the cable causes it to sink. The robot then has to pull the weight of the cable and after several round trips, the cable is tangled and hinders the progress of the robot resulting in a cancellation of the cleaning program.

Solution

We applied a second coat over the waterproof inner jacket. This coating material is foamed with gas. The coating thickness is such that there is sufficient buoyancy to allow the cable to float on the water surface. As a result the robot requires only minimal force for pulling the cable and tangles and hindrances under water are prevented.