ACTIVA Permastone Casting Compound - 28 Ounces Permastone is the perfect choice when you need a non-toxic casting compound to capture intricate detail that dries to a stone-like strength Easy to mix, pour and finish, it sets in 30 minutes producing a silky smooth, marble-like finish that is stronger than plaster When cured it can be easily filed, sanded and buffed to a rich luster, it dries ultra white and accepts all paints beautifully An excellent choice for hobby casting, ornaments, figurines, body casting, baby keepsakes, model railroad scenery and decorative art Non-toxic, ACMI Approved and meets all US and European testing standards