INOX MX3 leaves a long-lasting, non-conductive, non-staining film that helps prevent corrosion and keeps metal components moving freely. Safe on nylon, PVC, polypropylene, fibreglass and other hard plastics, it’s suitable for maintaining valves, BSP fittings, pump components, nozzles, hose tails, workshop tools and general mechanical assemblies across plumbing, industrial, agricultural, marine and fluid-handling applications.