A deadbolt having an integral light that is activated only when the deadbolt is properly locked includes a conventional deadbolt housing attached to a door. Said device comprises a fluid nozzle for generating a jet of fluid and a gas outlet nozzle, disposed at a distance from the fluid nozzle and producing a flow of gas enclosing the jet of fluid on the exterior thereof. The end users can use their own personal computers, or other computing devices, to access the reporting program over a network, such as the Internet. A wireless transmitter transmits a wireless data signal incorporating the wireless tag signal and location of the tag signal reader to a location processor, which receives the wireless data signals and determines which tag signals are first-to-arrive signals and conducts differentiation of the first-to-arrive signals to locate a tag transmitter and object coupled therewith. The novel process affords products which are easy to handle and which are flowable, and the novel modifications have advantages as regards their preparation, processing and their use as stabiliser. The method includes forming a plurality of build-up portions on the base material while maintaining a predetermined gap between adjacent build-up portions; and forming a build-up portion in each of the predetermined gaps.