New guy here. Just getting my tools together but have already studied sand and investment techniques fairly well. I was wondering what a good and cheap place to buy sodium silicate might be? Thanks.
If you want to DIY and have access to cheap silica gel you can make your own with caustic soda. https://forums.thehomefoundry.org/index.php?threads/sodium-silicate-recipe-the-good-stuff.1112/
