Nitromors will remove all coats of paint and varnish on an object/surface it is applied to. Commonly used to strip paint or anodizing from frames and other components. Available from good DIY stores such as Homebase or B&Q.

Using Nitromors: Wear gloves and do not expose skin that is not necessary.

The best way is to apply it to an area of the paint you want to remove fairly thickly, and leave it for around 10 minutes. Normally it is ready when the paint is bubbling off, but for anodizing and harder paint, it doesn't bubble as much. When it is ready, attack the area with a scouring pad/coarse cloth, and watch as the paint comes off with ease. Wash the surface down after it is finished.

DO NOT get it on your skin. If you do, immediately go to a tap for cold water and run your victim area of skin under it until the burning sensation has gone.