angelhair - 9-6-2009 at 01:36
What kind of places sell coloidal silica, that is, over the counter?
Twospoons - 9-6-2009 at 17:40
It is used as a glue thickener with epoxy in boatbuilding. Anywhere that sells laminating epoxy, fibreglass etc should have it.
chemrox - 9-6-2009 at 21:16
@angelhair: did you search on line? I did and ran into a couple of attack sites right away. If you're running Unix or Linux you might be OK
visiting them but if you're running win-doze ex-pee or vista, best stay away.
angelhair - 11-6-2009 at 01:40
Yes, I've come across a few places that sell it. It's aslo used as a concrete floor polish and to line molds for metal casting. If I understand it
correctly, it's just a suspension of amorphous silica in suspension, so how come it hardens when the water evaporates off and how can it be safe to
walk on, why doesn't dust off?
There was a post on pottery.org where a guy uses it to coat the headers of his exhaust pipes, and another guy who says it can take the place of ITC
products. I assume he means ITC-213. They also use it to repair cracks in furnaces etc. Seems like a very useful compound.
Any way I thinking about useing it to coat nichrome wire for imbeding into castable cement, but I won't get into that because I'm discussing it in
another thread.