Engineers from a leading water company reported that they occasionally felt an electric shock when
undertaking routine maintenance work on sewerage tanks. This highlighted a significant potential risk as the contents of the tanks are vented to release flammable gases.
The company quickly investigated and discovered the cause. A build up of static was occuring when operators wearing rubber boots walked across the roofs of the metal tanks, as they had been painted
with a non-conductive coating.
The organisation approached Delvemade, to find out if they had a coating that could effectively protect the tank and help dissipate the static build up. Delvemade had no such product in its range, so turned
to its sister company Itac to resolve the problem. The result is a new Delcote formulation, which has been shown in tests to help prevent the build-up of static.
The demonstration on the right shows the difference between a standard Delcote coating (1) and the new material (2). The meter reading in the first picture shows no conductivity (off scale), it is an open circuit without any flow of electricity. The meter in the second picture records resistance between the electrical points and highlights the flow of electricity.