SurfaLube™ Equipment Storage Fluid is used in urethane dispensing equipment when stored for an extended period (for up to 24 months). Once the Isocyanates (A) inside hoses and polyurethane spray equipment is completely flushed with NZD ISOFLUSH™ ISOCYANATES CLEANER, SurfaLube™is then introduced to the equipment through the spray lines.This helps eliminate formation of crystalized isocyanates that may form when any remaining residue reacts with moisture in the air.