Questions and Answers
This page includes all of the questions we asked to date, and as time goes on, we anticipate this section to cover a wide range of topics, including product or service usage, business hours, prices, and more.
Power of Copper
Copper has been used for health purposes since ancient times. But the question raised by the current pandemic was whether copper was a match for the highly infectious Covid-19 virus. The evidence indicates that it is. A study published earlier this year in the New England Journal of Medicine showed that, on plastic and stainless steel surfaces, the virus was able to survive for 48-72 hours but, on a copper surface, only for 4-8 hours.
Copper is what is referred to as a “contact killer.” Although the mechanism through which it destroys bacteria and viruses is not fully understood, copper ions puncture the microbe’s protective membrane, destroying the nucleus and its DNA. This makes it unlikely that the bacteria or virus will be able to adapt and develop resistance to copper.
We expect many questions and a lot to discuss. We love to share the knowledge we have accumulated through the years, so don’t hesitate to contact us.
FAQ
Antimicrobial copper alloys can be manufactured for a wide range of surfaces. These tools can be used to supplement routine cleaning and disinfection to combat SARS-CoV-2 and other Pathogens. The problem is that all manufactured items are hard surface items such as door knobs, faucets, rails, etc. We have figured out how to make a copper fabric that is flexible, washable, and long-term wearable. With new products always come questions, and we have the answers!
Is the glove washable?
Yes, you can wash your gloves. The manufacturer recommends machine washing cold and laying flat to dry. Do not use bleach when washing. Wash with like colors. Cool iron if needed.
Electricity and Our Glove
Copper has the highest electrical conductivity rating of all non-precious metals: the electrical resistivity of copper = 16.78 nΩ•m at 20 °C. The skin has conductivity but is at relatively high resistance.
Levels of conductivity on all surfaces vary depending on water content, porosity, temperature, salinity, etc. So whether you are wearing our glove or not, if you touch an electrical surface and create a circuit, you will be shocked.
Because copper conductivity is higher than your skin, we placed a layer of polyester between our copper fabric and the bare hand. Combining the layers of materials brings the conductivity rating on your bare skin back to average skin conductivity.
So whether you are bare handed or wearing our glove, use common sense when working with electricity. Normal usage in a normal enrivonment should not raise your chances of getting shocked.
My gloves are tarnishing, is this normal?
Tarnishing, oxidation, or patina finish is a surface change. Scientifically speaking, patina is the green or brown film that forms naturally on the surface of copper due to a series of chemical reactions. Copper develops a patina when exposed to oxygen and weathering over time. You will see this change in color on old roofing, copper statues, and copper metal surfaces.
There is no impact of oxidation of copper alloys on its antimicrobial efficiency. Copper materials are also known for being prone to tarnishing, especially in contact with moisture, salinity in the environment, and human palm sweat. The color of the tarnish will depend on the elements.
Depending on the availability of carbon dioxide and water in the air, different chemical reactions turn the copper oxide shades blue, green, and purple.
This process makes your glove even more powerful. During our Phase II Antibacterial Assessment of the Copper fabric, we found that during aging, the moisture allowed the copper to leach or diffuse into the polyester fabric below and display the same level of antimicrobial reduction as the copper itself.
How long do the gloves last?
We have tested normal usage wear and tear, and during the process, we have been able to get life usability to over 4-6 months.
Tarnishing occurred, but the overall glove was still very usable. We suggest replacing it every six months.
Best of all, during usage, you will notice high-contact copper surface areas fade a bit and show polyester.
This DOES NOT reduce the glove’s power because, by this time, copper (microscopically) has leeched into the fabric, creating an additional antimicrobial surface. This discovery is outside of textbooks!
How do you know your glove is antimicrobial?
Our scientific team performed an investigational study to determine the antimicrobial properties of the copper fabric.
The initial ROM based on ASTM E2180 and our copper glove material. We used a control glove material to test alongside
as the control material. All of the samples provided were conducted in triplicate, including recovery dilution plates. Both
the control and treated/test material were tested against 2 organisms and collected recoveries at T0 and T24.
Material used in study:
Plated copper coated fabric used in conjunction wit polyester. Specification of the copper purity is Cu 99.451 / Zn 0.274 /
Ni 0.073 / Cr 0.064 / Mn 0.053 / Fe 0.049 / Co 0.017 / Se 0.015. The aim was to provide screening of the material to
demonstrate the qualitative antimicrobial properties of the copper-polyester glove and face-mask material.
Completion of the methods included the following work elements in two phases included:
• Start: Test ‘as is’ method in E2180 against Gram (+ ) and (-) microbe
• Staph. aureus ATCC 6538 & Pseud. aeruginosa ATCC 15442
• Require Client to Provide: test & control swatches (12 per for full
• test)
• ATCC revival/storage of microbes
• 18 hour, bacterial cultures, 3 transfers x 2 microbes
• Agar Slurry
• Sample preparation
• Bacterial Density adjustment
• Pre-wet test samples
• Inoculate slurry (final concentration ~1-5 x 10^6 cells/ml)
• Inoculate slurry on samples
• Allowed exposure time (24 hours) at incubated temp/ for microbes (RH-
• 75% or above)
• T0 dilutions/plate for count (3 ctrl + 3 treated x 2 organism x
• triplicate x 4df) = 144 plates
• Sample neutralization/recovery processing
• T24 dilutions/plate count (144 plates)
• Incubate all plates for 48 hours before final read
• Observations & Results
• Project Data Report
The initial phase showed that the copper fabric composition positively showed bacterial susceptibility against both a
gram-positive and gram-negative organism by means of inhibition (preventing growth) and reduction of growth)
reducing the numbers of organisms present within a particular environment and/or stunting growth).
Our research team found exciting and favorable results that our copper fabric does contains strong antimicrobial properties and can kill on contact tested pathogens.