February 10, 2021

EPA Registers Copper Surfaces for Residual Use Against Coronavirus

The U.S. Environmental Protection Agency (EPA) announced today that it has registered certain copper alloys that have demonstrated effectiveness against viruses, including SARS-CoV-2, the virus that causes COVID-19.  This is the first antimicrobial product that is registered for "residual" use against viruses.  Traditional disinfectants only kill viruses and bacteria on the surface at the time they are used, while, in contrast, "residual" antimicrobial disinfectants kill pathogens that come in contact with the surface days,, weeks or year after the product is applied.  This "residual" antimicrobial property of copper alloy surfaces  provides a unique advantage in the fight against COVID-19 infections.

Open the link below to read the EPA News Release:



CAN COPPER HELP FIGHT COVID-19, by Harold T. Michels & Corinne A. Michels

Copper Inactivates the Virus that Causes COVID-19 in One Minutes

Professor C. W. Keevil of the University of Southampton is the senior author of a important paper on the rapid inactivation of SARS-CoV-2 on copper surfaces.  This paper reports that SARS-CoV-2, the cause of the current COVID-19 pandemic, is inactivated in as little as one minute by copper alloy C110 (99.90% Cu).  

The paper that was published on January 2, 2021, in bioRxiv, a rapid publication service with only editor's approval.  This fast method of publishing was selected in order to communicate the ability of copper to quickly inactivate this virus in a timely manner.  Readers are encouraged to recommend that copper alloys be deployed in the fight against COVID-19.

In addition, a new paper containing these findings and results will be submitted to another journal to  undergo the more rigorous peer review process. 

Click on the link  shown below in order to view this entire published paper:



This paper was published in: Advanced Materials and Processes, Vol. 178, No. 4, pp 21-24, May-June 2020.

It was initially made available prior to the printed publication by Digital First, an online pre-publication capability by ASM International.  The Digital First version is identical to the printed version, except that the page numbers were not yet assigned.  Just Click on the PDF shown below and the entire paper will appear.


The COVID-19 Pandemic, Part 1:  Can Antimicrobial Copper-Based Alloys Help Suppress Infectious Transmission of Viruses Originating from Human Contact with High-Touch Surfaces? 

This paper was published as an editorial in Corrosion - The Journal of Science & Engineering (Volume 76, Issue 6, 1 June 2020) by John R. Scully*, Technical Editor in Chief

The COVID-19 Pandemic, Part 2:  Understanding the Efficacy of Oxidized Copper Compounds in Suppressing Infectious Aerosol-Based Viral Transmission


This paper was published as an editorial in Corrosion - The Journal of Science & Engineering (Volume 77, Issue 4, 1 April 2021) by John R. Scully*, Technical Editor in Chief

*Department Chair

  Department of Materials Science and Engineering

  Charles Henderson Chaired Professor of Materials Science and Engineering

  Co-Director of Center for Electrical Science and Engineering

  School of Engineering and Applied Science

  University of Virginia