West System Filler Low Density, Sandable Filler, Microballoons Lightweight, Dark Reddish Brown Curing

A microballoon-based filler for creating easily sandable fillers that provide strength despite their low weight. Add the filler to WEST SYSTEM epoxy resin at a rate of 20 to 40 percent by weight. The filler cures to a dark reddish-brown color.