Get out the sandpaper, grinders and wire brushes! Physical removal of rust involves using something harder that the rust you want to remove and using it to wipe off that iron oxide. Wire brushing will take the longest time, sandpaper is better and if you use a power tool or air tool it's even faster.
The amperage rating isn't sufficient (as noted) and it isn't necessarily the same polarity either. You can possibly check if there is a polarity diagram on the adapters. In general, laptop power supplies are not interchangeable. So probably safe and unlikely to catch fire is about the best advice you'll get. posted by chairface at 4:47 PM on December 20, 2007. Thanks; I think I'll just wait and get a new replacement adapter tomorrow-just to be safe.
1 The 60320 C13 IEC power cord connector is often referred to as the IEC or computer power cord receptacle.2  The C13 plug is commonly used in a variety of power cords applications including desktop computers, monitors, printers, power supplies and game systems such as PlayStation III. These IEC C13 power cords are available for any country worldwide as well as extension cord versions commonly known as C13 to C14 power cords or C14 to C13 power cords.