Thanks, Kevin. Dripping rust is actually hard to effect with pigments, so I would buy this product.

Kevin,Pardon my brain cramp,but what is a "structured" filter? Jeff T.

I don't think there is an actual definition for it, True Earth uses the term, I beleive, in reference to it is actually more then a filter or wash, it can also be used as a weathering pigment, just applied different. A filter and/or wash is generally to effect the color or highlight detail, while this structured filter from True Earth can be used to create rust spots, run offs, leaks, etc. I use alot of the True Earth products, like there Flowering Rust, Rust Bubbles, there create great effect. Their Paint Alteration filters are great too, I use then instead of traditional filters to get good color variation. So to actually answer your question, I don't really know. Kevin