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Cleaning Stainless Steel in the Midst of a Pandemic

April 24, 2020

While much is still unknown about the nature of the novel coronavirus, it has been discovered that the virus can survive for many hours on non-porous surfaces such as stainless steel. To be more accurate, the droplets of moisture expelled by an infected person can remain on a non-porous surface for hours or even days,…

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Posted by Astro Pak Category: Blog
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Overview of Stainless Steel Surface Finishes

April 16, 2020

For most people, stainless steel is that bright, shiny metal used everywhere from kitchens to operating rooms to decorative exteriors of buildings. And, if asked about the finish, most would answer something along the lines of “mirror smooth.” In reality, of course, a stainless steel item has a finish that best serves its purpose.  Beyond…

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Posted by Astro Pak Category: Blog
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Electrolytic Cleaning and Electropolishing Compared

March 20, 2020

At first glance electrolytic cleaning and electropolishing look to be identical procedures. They both involve creating an electrical circuit between the stainless steel being processed and the tool being passed over it. Furthermore, both processes use the same electrolytic cleaning solution to aid in removing the contaminants. However, the two procedures not only have different…

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Posted by Mike Montgomery Category: Blog
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Electrolytic Cleaning: A Faster Alternative for Rouge & Heat Tint Removal

February 24, 2020

Stainless steel’s utility is, as its name implies, largely due to its ability to remain corrosion-free where other materials would react to the substances they come in contact with. However, even with this well-known resistance, rust can still form on stainless steel surfaces. Known as “rouge” it rests on the surface of the stainless steel,…

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Posted by Mike Montgomery Category: Blog
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What Determines the Best Food Grade Stainless Steel?

February 17, 2020

Not long after its initial development in the first decades of the 20th century, stainless steel was soon incorporated into the food making process. Its resistance to corrosion, the ease with which it can be cleaned and sterilized with steam, and its lack of a need of a protective surface coating have all led to…

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Posted by Daryl Roll Category: Blog
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Food Production System and Equipment Cleanliness in the Age of FSMA

February 2, 2020

Since just before the turn of this century, the vast majority of the food and beverage industry has come under increased scrutiny designed to ensure the safety of the food stream from farm or factory to the consumer’s table. The contributing factors have included outbreaks of foodborne illnesses, concerns about bioterrorism and the desire to…

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Posted by Daryl Roll Category: Blog
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What is the Passivation Process?

January 27, 2020

What is the Passivation Process? As defined in MIL-STD-753C, the passivation process is the final treatment/cleaning process used to remove iron from the surface of corrosion resistant steel parts such that a more uniform formation of a passive surface is obtained thus enhancing corrosion resistance. Stainless steel is different from other metals in that as…

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Posted by Daryl Roll Category: Blog
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Citric Acid Passivation of Stainless Steel Used in Aerospace Applications

September 27, 2019

Stainless steel is used in many aerospace applications because it is able to maintain its structural integrity over a wide temperature range while remaining chemically inert (passive), resisting corrosion and high-temperature oxidation. There are a number of different grades of stainless steel. They are all primarily alloys of iron, chromium and nickel in different combinations…

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Posted by Astro Pak Category: Blog
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Precision Cleaning Explained

September 18, 2019

Cleaning to perfection is a sophisticated process and yet vital to product integrity. Dr Brent Ekstrand, VP of Science & Technology at Astro Pak, sheds lights on contaminants and the tests performed to measure them. Astro Pak has been recently featured in Cleanroom Technology. Cleanroom Technology is the leading international publication for cleanroom operators and…

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Posted by Dr. Brent Ekstrand Category: Blog
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Is Electropolishing Necessary?

June 24, 2019

It depends on what the desired outcome is. Chemical passivation will attain a chrome to iron ratio above 1.0 (Cr/Fe), without producing any measurable change in the finish characteristics of the surface while Electropolishing (EP) is designed to remove surface damage from mechanical polishing (MP) and produce a more cleanable featureless smooth surface finish (Fig….

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Posted by Daryl Roll Category: Blog
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