Can you use a plugging agent for the leakage of warm air tank?

For the leakage of the warm air water tank, the water tank leak-proof plug cannot be used. The plugging agent only blocks the object at room temperature, but the water temperature of the hot air tank is 80-90 degrees. Adding plugging agent has no plugging effect, so it needs to be disassembled and welded. The disassembly method of the warm air water tank is as follows: 1. First, remove the workbench and remove the workbench screws. Note that there are two screws at the two edges under the workbench, and there are two screws directly above the wheel arch; 2. Disassemble the instrument components. Be careful not to break the instrument connecting wire when disassembling; 3. After the instrument assembly is removed, the whole picture of the heater is leaked. The heater has three screws connected to the upper part. Remove the screws first, and then remove the other two screws. 4. Then remove the water pipe connected to the warm air tank; 5. The warmest air tank can be taken out.