I have a 96 mazda 626. Does the stop leak remedies work for the radiator?

I have a 96 mazda 626. The radiator seems to be leaking around the plastic tank. I was wondering whats the best way to fix it other than replacing it or having it repaired. Does any of those stop leak remedies work? like the ones from the part store.|||Personally I dont like additives, they always seem to make the radiator block, Try sanding the affected area with sand paper then apply fibre glass and resin. It worked a treat for me!|||Depends on how bad and where the leak is!-- If just a "pinhole" and matereial around it is good,-- yes there are products that work! On plastic you can epoxy area with "JB Weld" I have sealed up plastic radiator tanks (the pans on each end of core tubes)-- this stuff works real good if the area is cleaned well, and kept dry for about 24 hours - rather than normal "curing time" shown on instructions, if in cool temps it takes longer also! if you have small pieces missing make aluminum (or copper) "filler pieces to bridge the gaps, and make the repair strong enough that the pressure doesn't crack the material again after you are done! There are also products you put in the water inside radiator,- however you need to be careful, as a lot of them will also plug up the radiator or heater core! A very good product to use is "Alumaseal", (available most auto parts supply stores), but make sure that you get the one that has the aluminum colored powder in it, -- There is also one that comes in same sized container and it is sort of brass-copper colored powder (don't use this one, - it is worst scenario product)............ I have used this for over 40 years with good results, - even sealing cracked heads (and small cracks in engine blocks) on vehicle without removing! Of course do you realy know (only) leak is in radiator to begin with? Visual signs would point you to it, to determine how bad the leak is! And of course the Alumaseal will plug almost all small leaks where ever they are! The exceptions are blown headgaskes -(leaking from combustion areas) - may still work on a lot of leaks from gasket to oil passages. Doesn't cure bad warterpumps (shaft seals), and if real long areas bad on radiator pans or anywhere that flex a lot - it is not too useful either! ---- But it might get you home in an emergency so that you can get it fixed properly!|||SILVER SEAL WILL WORK. BUT BELIEVE IT OR NOT A CUPLE OF EGGS WILL WORK ALSO . I HAVE TRYED IT AND WAS AMAZED AT HOW IT DID WORK.