DYKEM® Hi-Spot is an intensely blue, soft, uniform paste that spreads easily and evenly to show high spots on bearings. It is most valuable when used on flat bearing surfaces of lathes, planers, milling machines, etc. A thin coating may be left on the surface day in and day out, and will not dry. The film remains “wet” and “transferable” and in condition for months. No nightly clean up or morning re-bluing is necessary.