Letter 26084

Effectiveness of passivation test kits? [California] 

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Is anyone familiar with the effectiveness of the 2026 and 1626 passivation kits made by Koslow? I am trying to test for weld passivation of a 304 hand railing.

Adrienne Will
materials engineer - Ventura, CA, USA

If anyone has experience, please answer as generically as possible. The internet and forums like this are largely anonymous so questions like this often attract shills for a product or shills from their competitors.

 
Ted Mooney, P.E.
finishing.com Inc. - Brick, NJ

I own the Koslow 2026 and have used it for about 5 years with good results. I use it to validate our passivation process on parts for pharmaceutical companies. We have the meter calibrated once a year at a minimum and I think it was about $100 last time. You should plan on purchasing an additional probe to confirm results should there be a doubt. I would recommend this unit.

Joseph Lockrem
chemical cleaning - Indianapolis, Indiana, United States

I hesitate to answer this question because I have not been able to get my Koslow instrument to work right. If the instrument could be proven to give accurate results I would LOVE to use it in our research studies. The concept is certainly very good. I do not want to belittle Koslow's equipment if it can be proven to work in an independent study.

An important thing to remember here is that it is not accepted by any specifications, so if you are passivating to a specification such as ASTM A-967 [link is to spec at TechStreet] you cannot use this instrument.

Lee Kremer Stellar Solutions, Inc. Algonquin, IL, USA

Our company owns both Koslow testers mentioned. The 2026 is used with all stainless steels. The 1626 is used with titanium. We are very happy with each model.

Lisa Grosskopf
- Ontario, CA, USA

I want to answer or follow-up on this subject publicly (in non-commercial fashion).

 

My company is a supporting advertiser at finishing.com and we want the contact information to reach the inquirer privately.

 

I want to post a new question or inquiry of my own on a different subject.