The Zar wood patch is a ready-to-use latex patching compound containing treated pulverized wood to fill nail holes, repair cracks, gouges, chips in all types of wood. Special property allows Zar wood patch to accept stain more uniformly than other wood fillers. Zar wood patch is excellent for many uses because it shrinks less. Zar Wood Patch will take paint, varnish, shellac, polyurethanes, stains and can be used indoors or outdoors.