Teflon, for example, is a hydrophobic material, while nylon is hydrophilic. As a result, any piece of machinery that requires greater lubrication should be constructed with Teflon rather than nylon, since Teflon's water-repellant properties make it a stronger lubricant. PTFE rod is generally used as machining stock for all kinds of chemical, electrical and mechanical components where the outstanding performance characteristics of PTFE are required. Various fillers are available to modify the properties of PTFE to meet application requirements.