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Tacoma Bob · 03-26-2026, 10:29 AM

Sounds like Water Glass (sodium silicate) Throw it away. A well meaning club member dumped Water Glass in my radiator. What a mess. What hardened at the top of your container is what will happen in your radiator tubes.

03-26-2026, 10:29 AM	#5
Tacoma Bob Senior Member Join Date: May 2010 Location: Tacoma, WA Posts: 1,069	Re: radiator sealer Sounds like Water Glass (sodium silicate) Throw it away. A well meaning club member dumped Water Glass in my radiator. What a mess. What hardened at the top of your container is what will happen in your radiator tubes.