-- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing.
    no popups, no spam
on this site
current topics
topic 60442

Where to buy Hull Cell "Stress Tabs"

April 19, 2017

Q. I am looking to purchase Hull Cell Stress Tabs. These were previously purchased through Larry King (Rosedale, NY) but they are out of business. Does anyone have other contacts to purchase these Hull Cell Stress Tabs through?

H McCarthy
- Massachusetts, USA

April 24, 2017

A. Hi H McCarthy,

There's hull cell stress tabs mentioned in Relli Technology webpage. You may check it out.


David Shiu
David Shiu
- Singapore

How do "Stress Tabs" work?

June 8, 2018

Q. I am doing some testing with a Hull Cell and would like to see if the stress tabs on the Hull Cell panels will work. Can someone explain more details about how this works?

David Kraeuter
Sunnen Products Company - SAINT LOUIS, Missouri

June 2018

A. Hi David. Stress tabs are thin Hull Cell panels which are serrated like a hair comb, and coated with maskant on one side so they only get plated on one side. The principle is that tensile stress in the plating on that side will cause the teeth to curl in, and compressive stress will cause the teeth to curl out, so that you can (perhaps among other things) determine at what current density you have the least stress. Good luck.


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

June 8, 2018

Q. How large are the combs? Is there an effect of having created extra edges that will influence the results of the Hull Cell test? Will the curling in or out of the teeth influence the current density it is experiencing?

David Kraeuter [returning]
Sunnen Products Company - St. Louis

June 2018

A. Hi. The only one I've personally seen from was Larry King (as mentioned above). An old ad said they had 5 tabs, but I've seen articles where people have fabricated thin metal films on silicon for somewhat similar investigations. I do not know if Relli is selling off old inventory from Larry King or there is another manufacturer.

I hear the test being called qualitative rather than quantitative, so the effects of plating on the edges of the foil, or the increased or decreased current as the tabs bend closer to or further from the another are probably not carefully documented things.


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.