PermaStone Casting Compound - Just add water and stir PermaStonre mixture slowly until the consistency of heavy cream. Will not shatter when dropped. Fractured breaks are easily repaired. Carve and drill, will produce crisp edges and a smooth surface. Buff to a high luster or finish with any stain or paint. Exterior grade when sealed. Low exotherm (generates less heat than comparable products). Embed hangers, pin backs, or magnets in wet mixture 2-3 minutes after pouring. Bisque white color.