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.
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