Cabosil fumed silica powder manufactured as a thickening agent for paints, acrylics, polyurethanes, polyesters, adhesives, and epoxies. With this product you can easily increase the viscosity of your chemicals. Create a thixotropic system with non-sag qualities. Cabosil can be used to patch holes, fill voids and crevices, and build body to low viscous material. Once cured and/or dried this product is fully machinable and sand-able. Cabosil can easily be added to any application and simply stirred in by hand.