Sodium Silicate 40% - Water Glass (1 Gallon)

I use some of this for the inside of my Forge works great, and stays in water to seal the head gasket as well make with cement in the insides are used sodium silicate

This worked for my 04 toyota 4 runner aluminum block and head. I tested this product with both green and red antifreeze in which it coagulated badly in a cup. To have success with this product you must drain all coolant from the motor. You need 16 ounces of product for a 4 cylinder, 24 ounces for a 6 cylinder and 32 ounces for a v6. It is imperative you drain the coolant. Do not add coolant until you drain the product. Drive it with only water and product for a couple months and you will have months of operation with no problem. Because my motor is aluminum head and block and freezing isnt a huge issue where I live Ive opted to just run the vehicle with water and product. I havnt had a problem one so far. Hope this helps. You do not need to bypass the radiator or heater core as this product only coagulates around the piston where you need it because of the very high temperatures. It will not coagulate anywhere else so you do not need to drain it unless you intend to add antifreeze. This product plus antifreeze equals a gelled mess you do not want in your motor.

Shipping was more than the product. Be aware.

perfect! & quick to ship

I used this product for a high temperature binding agent for a sand lined metal foundry. it has held up tremendously great. I have had it glowing many times from the heat and still in great condition. it actually seems to get harder after each use

Great product Shipping is way to high

great product did the job

The product went on smoothly and went much further than anticipated.