Review on 🆓 ComStar A/C Zero-Leak: Instant Stop Leak Solution for A/C Systems - Non-Hardening, Polymer-Free, Eco-Friendly - Made in USA - 4 Ounces (90-700) by Andre Motko

I have a Hyundai H100 van (Hyundai Starex here in the Philippines) whose air conditioning stopped charging after two months. After two refrigerant charge cycles I came across Comstar Leak Sealer here at Revain, read all the positive reviews, learned about the sealing technology, bought two bottles and sent them to the Philippines. It also helps that Comstar is considered a non-hazardous/non-flammable/non-toxic material so I didn't have any issues with air travel. I myself injected the contents of a bottle into the low pressure port using an oil injector powered by the high pressure port (tools used: oil nozzles and pressure gauge). I am very happy with the results - no more leaks and my Hyundai van's air conditioning is cold, which is essential in the tropical country where I live. The thing works! No clogging of expansion valve or filter drier core. More importantly, the remaining Comstar sealant now acts as a preventive sealant as any incipient future leak is sealed immediately, preventing loss of refrigerant charge.