BTW- this is my favorite polyester putty. It is harder and finer than conventional filler and it sticks to acrylic and styrene really well. It's called a glaze, but it has to be catalysed like any bondo-ish filler, it uses the same hardener anyway, so it's not like nitrostan or other "red" lacquer-based air-dry spot glazes. Any decent automotive finishing store should carry it.