Previous in Forum: A/C   Next in Forum: Air Pressure as a Pipe Reduces
Close
Close
Close
19 comments
Associate

Join Date: Jul 2007
Location: New York City
Posts: 28

Peel/Adhesion testing

08/06/2007 9:31 AM

Im trying to find an inexpensive way to testing the adhesive strength on a label. I also want to test the strain on the label with a strain rosette. The strain gages dont seem too expensive, considering I only need a few for small tests. Does anyone know of any tension testing machines that are inexpensive, or had experience with the EZ test machines from Com-Ten?

Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16499
Good Answers: 662
#1

Re: Peel/Adhesion testing

08/06/2007 11:06 AM

Make a jig to mount your label in a consistent manner.Attach weights by means of a clip or an attachment which can be glued to the label in a repeatable manner. Slowly increase the weight until peel starts. Record results...do the stats...have a coffee..write a lengthy report...get promoted...etc

__________________
health warning: These posts may contain traces of nut.
Register to Reply
Guru

Join Date: Jul 2007
Location: 30°30'N, 97°45'W, Elv: 597 ft.
Posts: 2411
Good Answers: 10
#3
In reply to #1

Re: Peel/Adhesion testing

08/06/2007 10:37 PM

Del Gato, yu are killing me over here!

__________________
I never apologize. I'm sorry that's just the way I am.
Register to Reply
Associate

Join Date: Jul 2007
Location: New York City
Posts: 28
#2

Re: Peel/Adhesion testing

08/06/2007 11:36 AM

Thanks, thats a pretty good idea actually.

Register to Reply
Power-User
Engineering Fields - Marine Engineering - New Member United Kingdom - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Jun 2007
Location: Birmingham UK
Posts: 257
Good Answers: 1
#4

Re: Peel/Adhesion testing

08/07/2007 2:45 AM

Del's right the simple solutions are the best. But if you tell anyone how you did it you'll never get promoted.

__________________
Reset, Reset
Register to Reply
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16499
Good Answers: 662
#5
In reply to #4

Re: Peel/Adhesion testing

08/07/2007 2:47 AM

Yeh Davah! Soooooooooo right, your Boss will take the credit for delegating so cleverly !

__________________
health warning: These posts may contain traces of nut.
Register to Reply
Power-User
Engineering Fields - Marine Engineering - New Member United Kingdom - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Jun 2007
Location: Birmingham UK
Posts: 257
Good Answers: 1
#6

Re: Peel/Adhesion testing

08/07/2007 2:50 AM

Yah! Forgot to add 'What goes 'round comes'round'.

__________________
Reset, Reset
Register to Reply
Anonymous Poster
#7

Re: Peel/Adhesion testing

08/07/2007 8:18 AM

What is your budget?

Register to Reply
Associate

Join Date: Jul 2007
Location: New York City
Posts: 28
#8

Re: Peel/Adhesion testing

08/07/2007 8:59 AM

My budget is a little less than 1000 USD. A few slabs of aluminum plating is probably good enough. Some pulleys and rollers and Im set. I already have 2 slabs of aluminum that I purchased for a project that apparently already had enough materials.

Register to Reply
Anonymous Poster
#9
In reply to #8

Re: Peel/Adhesion testing

08/07/2007 9:56 AM

I work for Com-Ten; by the time you add up the EZ test stand, Digital Force Meter and clamps, you will go over budget (approximate cost will be $1900). You may want to consider just buying the digital force meter, and physically applying the force. My name is David, and I would be happy to help you find a low cost solution; please call me at 800-552-5546

Register to Reply
Associate

Join Date: Jul 2007
Location: New York City
Posts: 28
#10

Re: Peel/Adhesion testing

08/07/2007 10:14 AM

Thanks, I just talked to my supervisor and he gave me a list of tests he wants conducted, among them, some speed tests that will require a linear translation motor/stage.

Also, thanks David, I will call you if there is anything more I need.

Register to Reply
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16499
Good Answers: 662
#11
In reply to #10

Re: Peel/Adhesion testing

08/07/2007 10:19 AM

Speed test? Please elucidate!

__________________
health warning: These posts may contain traces of nut.
Register to Reply
Power-User
Engineering Fields - Marine Engineering - New Member United Kingdom - Member - New Member Engineering Fields - Mechanical Engineering - New Member

Join Date: Jun 2007
Location: Birmingham UK
Posts: 257
Good Answers: 1
#12
In reply to #11

Re: Peel/Adhesion testing

08/07/2007 10:23 AM

How quickly you can be ripped off man!

__________________
Reset, Reset
Register to Reply
Associate

Join Date: Jul 2007
Location: New York City
Posts: 28
#13

Re: Peel/Adhesion testing

08/07/2007 10:24 AM

Basically, the test is to see the adhesion of the label at a certain rate of jaw seperation. In my case, its 300 mm/minute. The only way to do that is to have some kind of linear translation stage. But it would be simpler if the jaws themselves were able to seperate at that speed. There's also an angle of attack when the label is being peeled, which are 180 and 90 degrees. I cant see how I could build something like that without purchasing a linear stage or something that would move the jaws at that speed.

Register to Reply
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16499
Good Answers: 662
#14
In reply to #13

Re: Peel/Adhesion testing

08/07/2007 10:32 AM

The speed thing sounds like a BWFT to me. 300mm an minute ...? you are having a laugh? At those slow speed I'd bet it won't make any difference...

OK...there will be some difference between a 'snatch' and a s l o w peel...

(I reserve the right to be wrong here, but I'd willingly bet a pint...I can think of vastly better ways to spend the budget!)

The angle of attack thing is sensible.

Jeez are these labels for the space shuttle (or medical) or something special?...this is begining to sound like QA gone mad!

__________________
health warning: These posts may contain traces of nut.
Register to Reply
Associate

Join Date: Jul 2007
Location: New York City
Posts: 28
#15

Re: Peel/Adhesion testing

08/07/2007 10:35 AM

No , these are FINAT tests, haha. I think I can just get a hand cranked stage and place a motor on it. Using a ruler, I can just let the motor run and the digital gauge make the readings till the label peels off.

For your information, these are packaging labels, although Im sure NASA has million dollar equipment to test a bottle label.

Register to Reply
Guru
Popular Science - Weaponology - New Member United Kingdom - Member - New Member

Join Date: May 2007
Location: Harlow England
Posts: 16499
Good Answers: 662
#16
In reply to #15

Re: Peel/Adhesion testing

08/07/2007 11:27 AM

FINAT... looked it up...whatever...

I'd still love to see a graph of peel force vs speed....

They have no interest in selling you expensive and irrelevant test gear I s'pose?

A little cynicism can save a lot of money. (Doubtless it won't end up in your pocket though!... Mine neither)

If you find that graph..pls post it ..It would be interesting, I'm not just a mouthy cynical old git...I am actually interested in learning too!

Have fun

Del

__________________
health warning: These posts may contain traces of nut.
Register to Reply
Guru

Join Date: Jul 2007
Location: 30°30'N, 97°45'W, Elv: 597 ft.
Posts: 2411
Good Answers: 10
#17

Re: Peel/Adhesion testing

08/07/2007 12:19 PM

Maybe a phone call to 3M would save some time.

__________________
I never apologize. I'm sorry that's just the way I am.
Register to Reply
Member
Hobbies - Musician - New Member

Join Date: Jan 2007
Posts: 7
#18

Re: Peel/Adhesion testing

08/07/2007 12:48 PM

Take a look at the Pressure Sentive Tape Council web site where there is information on specific test methods for pressure sensitive tape (PSA) and the various devices to perform the tests. The test methods conform to both PSTC standards as well as ASTM.

www.pstc.org

Register to Reply
Participant

Join Date: Aug 2007
Posts: 3
#19

Re: Peel/Adhesion testing

09/06/2007 12:45 AM

Hi. i am amalan from india. Hang 1" label with a std. wt.(i can decide yourself). The time taken for the label to fail is the adhesive strength. It is comparative study only. You can compare with std. value.

Register to Reply
Register to Reply 19 comments
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
Copy to Clipboard

Users who posted comments:

aanh (1); Anonymous Poster (2); davah (3); Del the cat (5); Gary King (1); mecharine (5); TexasCharley (2)

Previous in Forum: A/C   Next in Forum: Air Pressure as a Pipe Reduces

Advertisement