Cab-O-Sil is a lightweight filler that can be added to Smooth-On rubber and plastic products as a thickener, extender or to create special effects. Proportions of Cab-O-Sil filler, to rubber or plastic product, depend on the application or desired effect.Cab-O-Sil is fumed silica, an extremely lightweight powder. Avoid getting airborne or inhaling.
Read MSDS before using.
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