Z12156 Radiator Repair Tool Kit - Professional Leak Fix & Maintenance Set for Cars, Trucks, and HVAC Systems | Essential for DIY Mechanics and Home Garage Use

-cleaned the area where the leak was occuring- added heat using a small butane torch-allowed the metal to heat up-removed torch- applied this "string" repair product directly to the affected area-covered the are suffientlyI then pressure tested the radiator to 25 lbs....it held over nightThen I upped the pressure to 35 lbs.....this blew the expanded plug out of the rad...the repair held fineWill recommend to others