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What kind of glue can be used to repair a leaking car radiator?

3 Answers
VanElena
09/07/25 4:41am
Water tank leaks can be repaired with AB glue. AB glue is another name for a two-component adhesive consisting of a base glue and a hardener. The base glue must be mixed with the hardener to achieve the hardening effect. It is a type of room-temperature hardening adhesive and does not require heat to cure. For car radiator leaks, a strong leak stopper can also be used for sealing. If the leak persists, it is recommended to replace the car radiator promptly. Additional information is as follows: 1. Definition: The car radiator, also known as a heat exchanger, is a key component of the car's cooling system. Its function is to dissipate heat. The coolant absorbs heat in the water jacket, flows to the radiator to release the heat, and then returns to the water jacket to circulate, achieving temperature regulation. It is part of the car engine. 2. Working principle: When the engine's water temperature is high, the water pump circulates the water repeatedly to reduce the engine's temperature (the radiator is composed of hollow copper tubes. The hot water enters the radiator, is cooled by air, and then circulates back to the engine cylinder walls) to protect the engine. In winter, if the water temperature is too low, the water circulation stops to prevent the engine from getting too cold.
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LeCecilia
09/19/25 4:02am
As a seasoned driver with decades of experience behind the wheel, I've encountered numerous radiator leakage issues. The radiator is a critical component of the cooling system, and leaks can lead to engine overheating, potentially causing severe engine damage in extreme cases. Speaking of adhesives, I've tried using epoxy resin for temporary repairs due to its high-temperature resistance and strong bonding properties. Before application, it's essential to thoroughly clean the leaking area, wipe it dry, apply the adhesive, and press firmly for a few minutes. However, it's crucial to remember that this is only a temporary fix. On my old car, the radiator was so aged that the adhesive held for barely a few days before leaking again, and the problem was only permanently resolved by replacing the radiator. I recommend checking the coolant level before driving. In case of a leak, use adhesive as an emergency measure, but visit a professional repair shop as soon as possible to inspect the radiator for cracks or corrosion. Safety always comes first.
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DelDaniela
11/02/25 4:25am
As a DIY enthusiast car owner, I find using glue to fix a leaking radiator quite simple. I always keep AB glue on hand, that two-component epoxy adhesive which hardens quickly after mixing and works on various materials. The steps are: first clean the leaking area thoroughly, apply the glue evenly with a small brush, wait for it to cure, then test it. I once repaired a small crack this way, though it's not a permanent solution - high radiator pressure may cause leaks again. It's best to check if the issue is loose connections or radiator aging to avoid repeated repairs. Regular maintenance like adding coolant to prevent rust can reduce leakage risks. While saving on repair costs is good, this method isn't guaranteed long-term.
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