If you wipe down your blades with simichrome you will damage them. It will remove crossgrain and burnishing. Oh, I know some will say only aggressive cleaning will do that. BS. Simichrome contains an abrasive and it removes metal EVERY time it is used. If you need to wipe down your blades use a soft cotton cloth like an old t-shirt. It will remove oils left by fingerprints and other residue without removing metal. The best way to keep your blades virgin is to not touch them. Clean the blade once with a sudsy ammonia and hot water solution and then keep your fingers off the blade.