Posts Tagged: AC leak detection

AC Stop Leak: Why Professional Technicians Never Use It

Common Problems Caused by AC Stop Leak Sealants Quick Summary AC stop leak products promise a fast and inexpensive way to fix a leaking automotive air conditioning system. They work by circulating a chemical sealant through the refrigerant circuit, where it reacts with air and moisture at a leak point, hardening to form a seal. While that sounds appealing, I never recommend using AC stop leak because it can clog expensive AC components, contaminate recovery equipment, void warranties, interfere with future repairs, and often fails to provide a permanent fix. … Read More