A. STAINLESS STEEL
Since Stainless Steel does not oxidize or require a protective lacquer coating, it should only be cleaned with a soft damp cotton cloth and mild detergent containing no abrasives. Wiping should always follow any visible grain direction of the finish and be applied without any pressure.
USE OF ABRASIVE CLEANERS, POWDERS, SCOURING PADS, STEEL WOOL, SANDPAPER, ETC. WILL DAMAGE ANY FINISH PERMANENTLY. ACID OR ALKALINE CLEANERS, SOLVENTS OR OTHER LIQUIDS MAY ETCH, OXIDIZE OR OTHERWISE DAMAGE STAINLESS STEEL.
Any persisting stains like sugar, fingerprints, oil, should be removed while wiping without pressure with a soft cotton cloth and a small amount of lacquer thinner or mineral spirits. This should be followed by wiping with a mild commercial glass cleaner and immediately blow dried to prevent streaking.

B. CLEAR LACQUER, EPOXY OR URETHANE CLEAR COATED COPPER ALLOYS AND ALUMINUM
All clear coatings are sensitive to scratching and abrasion. Therefore the same instructions and cautionary measures as for Stainless Steel apply to safeguard the integrity of clear coatings.
EXCEPTION: UNDER NO CIRCUMSTANCES SHOULD SOLVENTS SUCH AS LACQUER THINNER, M.E.K. OR ANY OTHER ACID CAUSTIC LIQUIDS BE USED WHICH WOULD BE ABLE TO DISSOLVE OR ETCH SUCH CLEAR COATINGS.
The only mild solvent which can be used successfully on most clear coatings is mineral spirits, followed by a wipe with a mild glass cleaner containing little or no ammonia.
If the clear coatings are accidentally or intentionally removed, scratched or otherwise compromised, the underlying metal will tarnish in the exposed area. In this case, professional metal maintenance is required.