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Sodium Silicate

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JKinKY

07-06-2011 13:07:03




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Has anyone used sodium silicate to stop engine coolant leaks? Does it work? What are the plusses and minuses of it. I had never heard of it until very recently.
Thanks very much for any suggestions and advice.




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Spotted Horse

07-07-2011 20:42:24




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 Re: Sodium Silicate in reply to JKinKY, 07-06-2011 13:07:03  
40-50 years ago, I think they called it "water glass."



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LAA

07-07-2011 19:46:54




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 Re: Sodium Silicate in reply to JKinKY, 07-06-2011 13:07:03  
Its sold under different brand names, ""liquid glass"", it works to stop radiator and manifold leaks, it gets into any crack and cures. Was always told you would have trouble getting the heads off an engine if liquid glass was used but never tore one down after.



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HUNIT

07-06-2011 14:11:36




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 Re: Sodium Silicate in reply to JKinKY, 07-06-2011 13:07:03  
if it a small leak use black pepper worked in my pick up for a few years just have to add it every so often



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tractor300

07-07-2011 07:04:21




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 Re: Sodium Silicate in reply to HUNIT, 07-06-2011 14:11:36  
Agreed on the black pepper. Works great. Also won't clog your radiator like a lot of other product's do. Have used as a temporary fix for year's, and has worked as a permanent fix in some cases. If you get your oil changed at the garage however, they will want to change your anti freeze as it will give it a brown color.



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bjb in Tx from Ne

07-06-2011 13:48:47




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 Re: Sodium Silicate in reply to JKinKY, 07-06-2011 13:07:03  
I don't think I would use it (unless that is the main ingredient in those stop leak products). Sodium silicate is essentially liquid sand. That is the same stuff they replaced the oil with in the engine of the "Cash for Clunkers" program to destroy the engine. I would expect it to destroy a water pump given enough time at some concentration.



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bjb in Tx from Ne

07-06-2011 13:51:29




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 Re: Sodium Silicate in reply to bjb in Tx from Ne, 07-06-2011 13:48:47  
Maybe it does work:

Sodium Silicate

Guess it depends on where the leak is located.



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Taylor1561

07-06-2011 22:23:03




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 Re: Sodium Silicate in reply to bjb in Tx from Ne, 07-06-2011 13:51:29  
I used Sodium Silicate in my MM model R.Had a leak between the blocks and thats been 4 or 5 years now and still no leak.Bought mine at drug store.Drain out all coolant & use radiator flush,drain,flush good with water.I mixed a quart in 5 gallon bucket with the right amount for the system,use a stick mix good pour in & start engine & run till engine is up to temp,at least 1/2 hour.You may have to cover radiator to accomplish this because you have to remove the thermostat.Shut engine off & completely drain system.Leave set for a day or so to let it dry good,leave cap off.It will not harm the water pump.Also I haven"t noticed it running any warmer than it ever did.I swear by the stuff.Good luck

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