customcutter Posted August 29, 2017 Share Posted August 29, 2017 I mentioned in another thread I scored a free 55# bag of fumed silica Monday when purchasing materials. However, it was on the shelf for at least 7 years, management didn't even know they had several bags left over from a job years ago. One of the employees said they had some when I asked about it. When I got home I did an internet search and one website said that it had a shelf life on 2 years in a sealed bag in the warehouse. On a second website, it said it had an indefinite shelf life in a sealed bag, but only 2 years after it was opened. I'm going with option 2, it's got an indefinite shelf life and it's been in a sealed bag. I've looked all over this site and the internet about mixing fumed silica to make colloidal silica. I think colloidal silica actually involves more of a chemical process than just dissolving or suspending fumed silica in water? Anyway that's what I did dissolved all the fumed silica I could in regular tap water and buttered my inswool and then sprayed about 1/2 gal of fumed silica solution into it. I'm going to let it air dry overnight. Tomorrow I will light my turkey fryer burner and see if I can get it dried out and properly hardened. What say ye? Thanks in advance Ken Quote Link to comment Share on other sites More sharing options...
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