The 403A Super Cold 134A is a cooling spray for electronics. It quickly chills circuits to -50 °C (-60 °F). It is made is 100% HFC-134a, which is non-flammable, non-conductive, moisture free, and zero residue.This freeze spray is an electronic component cooler for troubleshooting problem components on pbc’s, motherboards, and other electronic devices. It can also be used to protect heat sensitive components during soldering and desoldering, quickly cooling solder joints, and locating hairline cracks in traces. It can be used for low temperature testing of instruments and electromechanical devices, and it can also be used to freeze gum and adhesives for easy removal.This product comes with an extension tube for targeted application, however, the most accurate application method is to first spray a swab, and then press the chilled swab to the item being cooled (just be careful of static).This is a food safe cold spray, to the limit that it is listed by the NSF as acceptable for use as a refrigerant for use on electrical components (P1), in and around food processing areas, provided it used in a manner that ensures there is no possibility of direct of indirect contact with potable water.This is an economical freeze spray that is suitable for most industrial applications. We also offer a premium freeze spray with minimal environmental impact.