Spray distance is a critical factor governing the film formation quality of die-casting release agents. Per technical specifications, the optimal nozzle-to-mold distance should be maintained within 80–200 mm. A distance that is too close may exert excessive impact force on droplets, disrupting the uniformity of film formation; conversely, a distance that is too great can cause premature evaporation of atomized droplets, reducing effective coverage. For instance, some customers reported poor film formation and frequent incomplete coating of deep cavities when using the release agent due to an overly large spray distance.
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