NOS Silver Seal Radiator Sealer Stop Leak Powder NOS - 21 g

sealed my radiator up fast

So far this product has been a wonderful blessing. Had a leak in an '01 F-150 coming from the manifold around a hose fitting. Used the Silver Seal and stopped the leak. Estimates were $500.00 to $1200.00. The SS was $10.00! Still checking the heat gauges and radiator level but so far so good. Follow directions.

NEW old stock, had not seen this for a very long time.

Didn’t work at all.

I tried in my Mitsubishi and after several hours it reduced the water and smoke coming out of the pipe. Even the water seeping in the engine stopped. Hopefully will last longer but perhaps needs another application. Worth trying considering it can be mixed with current coolant or water- only pour into radiator while engine running and drive or idle a bit. However detailed instructions are lacking.

Had a intake maifold leak on a Equinox. Was probably very minor. Had good luck with this product! Try at own risk!

Works as expected. I'm going on 4 rides and 300 miles. So far so good.

Fixed Problems, No Leaks. Used Months ago