AC leak freeze is the ideal product for air Conditioner unit repair and refrigeration repair. AC leak freeze will stop leaks of refrigerant gas in hvacr air conditioning and refrigeration systems in homes and commercial buildings. AC leak freeze ensures that the AC repair or refrigeration repair permanently seals leaks. AC leak freeze is suspended until it mixes with the refrigerant. AC leak freeze is activated by refrigerant escaping at the site of a leak - forming a chemical weld and sealing the leak. made in United States. Manufactured by Rector seal.