Chestnut – Spirit Thinners 500 mlThis clear, slower drying solvent is primarily for thinning our Spirit Stain to give delicate wash effects without affecting the colour (as methylated spirit would).It can also be used to dilute Friction Polish or French Polish if needed (usually only when the cap has been left off and the product has thickened up).It’s also suitable for use in making french polish if you want to dissolve shellac flakes in it.You can see more finishes HERE