Hi Ed,
Fluid film is basically lanolin from sheep's wool; also known as wool wax. It has no VOC's, and is non-toxic as well. Their website makes it sound like the greatest thing since sliced bread, and maybe it is. I use it as a bore preservative in guns I won't be using for more than a couple of months. I will be using it for an undercoat for my already rusty 2000 Nissan Frontier. I bought a kit from the FF website with a gallon of fluid and a spray gun that you hook up to an air compressor.