Cabosil - Fumed Silica Thickener in Quart Tub

A good thickening agent for epoxy.

I used it to essentially fluff up flash powder by adding 1/10th of 1%to the mix. It allegedly makes the fire front from the point of ignition spread more rapidly throughout the total volume of flash instead of having the likelihood that some of the flash intended to go off get smashed at the ends of the shell while the inner part breaks the shell and wastes the powder at the ends un burnt. Use less flash, less power, but more boom! Its the lightest compound I have yet to handle and will actually begin leaving the tub upon opening, so wear a mask!

I used this with epoxy to thicken it. It did work but it didn’t dry clear almost an off white color. Not sure if that’s normal or not. It worked for what I needed to get done.

Did exactly what I wanted too.

Smaller than expected but good

Using this for a dry fly floatant for fly fishing - works great and will last forever.

Thickened up the gel coat to make repairs to my boat ... worked very good..

Worked great as a rigidizer for ceramic blanket in a forge. Mixed 1:2 with water and a few drops of food coloring. Brushed on. For my blanket feeling like stale pound cake and ready for use.

I needed to fill holes in Banksia handles I was making. The Cabosil worked fine for my project. It is light and fluffy so precautions need to be taken to avoid inhaling the product. With care it is no problem to use safely.

I’d previously bought the System Three fumed thickener to used in Epoxy resin. That stuff was super chunky. The Cab-O-Sil is much better. Very easy to mix to an even smooth consistency. I’m actually looking to create projects just for this.