and Care

Maintaining Your Sink

What is a Patina or Living Finish?

The beauty of copper and similar metals is its living finish or patina. It builds over time and works as a protective coating. The patina is a rich weathered finish with light and dark tones complementing each other and creating the unique effect of copper.

See our cleaning and care guide HERE

General Tips

  • Never use anything abrasive like: Soft Scrub, Steel Wool, Chore Girl, etc.
  • Never use the following products: Brasso, Clorox, Drano or Similar Products.

Caring for Copper

Wash with soap, water and a soft cloth or sponge. We recommended the following soaps: Dawn Ultra (Original Blue Color), Ultra Ivory Dish Liquid (Classic Scent White Color) and Palmolive Original (Green Color). Wipe off the surface to remove standing water, whitening toothpaste, acidic substances, etc. Acidic substances create shiny spots, yet over time copper heals itself and with use the color will begin to return to its original shade.  For extra protection use a high-quality carnauba wax (with no polishing agent). Acidic substances like Lime, Lemon, Tomato Juice, etc tend to leave shiny spots.

Thompson copper and brass sinks are high quality, low maintenance and therefore, easy to care for. Your sink will last for generations!


Polished Copper, Polished Brass, Polished Rose Gold, Satin Brass

  • These finishes will patina
  • If the patina grows too dark and you wish to restore the sinks shiny finish, use a copper polish like Wright's Copper Cream ( Follow Wright's cleaning directions on how to use the copper cream). Then re-wax your sink.
  • If you wish to slow the patina process, wax your sink. Use a high quality carnauba was (with no polishing agent)
  • Never use anything abrasive
Fired Copper, Aged Copper & Antique Copper

  • These finishes will patina.
  • Any spotting caused by normal usage will eventually fade back and match the patina.
  • To protect and slow the patina, use a high quality carnauba wax (with no polishing agent).
  • Never use metal/copper polish or anything abrasive on these finishes.
Stainless Steel, Black Nickel, Antique Satin Gold, Polished Nickel, Burnished Nickel, Matte Black, & Powder Coat

  • These finsihes will not change or patina
  • We recommend using a high quality carnauba was (with no polishing agent) to protect the finish.
  • Never use copper polish or anything abrasive.

Questions About Your Sink’s Finish?

Thompson Trader’s sinks are high quality, low maintenance and therefore, easy to care for. If you have additional questions about how to care for your finish, please contact us.


Thompson Limited Lifetime Warranty

­­­­­­­­­­­­­­­­Thompson, Inc. warrants its products to be free of manufacturing and material defects for the life of the product. Thompson, Inc. will not be responsible for changes in the finish, abuse of the sink, or damage caused by incorrect cleaning.

Many Thompson products are made with unlacquered copper or brass which is called a living finish.  These finishes will be impacted by many environmental factors and will change (patina) over time.  These changes in finish are not covered under the warranty.  Please note that replacements and refunds are determined by Thompson. In no event is Thompson liable for any damage during or after installation; nor is Thompson responsible for charges associated with your purchase, including labor, installation charges or any other expenses associated with the defective product. Our warranty applies to Thompson-brand products only and does not include installation costs. Damage due to abnormal wear and tear will be reviewed on a claim-by-claim basis.

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