Use acetone. Our customers are also getting excellent results with Chemspec's new T.I.G. (Tar, Ink and Grease) which was launched at the ISSA show. Nail varnishes these days (going from my teenage daughter's collection) are bright, vibrant colours. These dyes can often be left behind in the carpet even when you remove the main constituent of the varnish. In this instance Dye Gone can sometimes remove the remnants.