Water Displacement Devices Did you know WD 40 isn't actually a lubricant? It's a water dispersant (hence the name: Water Displacement, 40th formula). For long term lubrication, especially on moving parts like hinges or bearings, always follow Water displacement hi res stock photography and images Alamy WD 40 Specialist Long Lasting Spray Grease Rocket TT Multi Use Super Lubricant Water Displacement WD Spray 2x 100ml + Straw JL 1 Lubricant Positive Displacement Grease Dispensing Valve JINPINLUB