The Leak Saver works similarly to how blood works in your body. After injecting it, the sealant travels through the system with the refrigerant to rapidly find and seal small leaks. The sealant formula reacts with the moisture and air present at the leak point to make a permanent seal. The Leak Saver is able to seal small refrigerant leaks where the complete charge is not lost within 7 days.
Any Leak Saver sealant that is left over will remain unreacted in the system to seal future leaks.