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Wednesday, 22 May 2019

Abrasion/washability tester

4 Posts

Friday 19 November 1999 1:00:00 am

We are thinking about buying abrasion/washability tester for testing dispersion paints. But, I would like to hear comments from the people who are using them: how usefull is it, are test results in corespondence with the real situation, which model would they suggest...
Has someone got text for DIN 53 778 in English?
I will be grateful for a help.

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Tuesday 23 November 1999 1:00:00 am

If you want to use the abrasion/washability tester for testing dispersions I suggest you not to test the dispersions with DIN 53778 becaus there the people which made the DIN tried to norm something that isn't that easy to norm. Especially you have to norm your brush of the tester and these norming is only relativ and not absolut. I am studiing Chemistry (especially coatings) and I had to do and explain these test to the other students and also the professor said that these test isn't that good. The other posibility you have is the ASTM that is more realistic. I hope I could help you because I think the test enjoy reputation but it is not very useful.

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Tuesday 04 January 2000 1:00:00 am

This is a test with a large margin of error. Whether you are using DIN or ASTM, there are a number of variables that affect the result, eg. thickness of coating, cure time, hardness of bristles on brush, weight of brush, tension of wire that hold the brush, the scrub medium.
As you can see, results will certainly vary from lab to lab. One big difficulty is the number of samples that can be tested at one time. After testing one sample, the brush softens and may not be as abrasive as for the 1st sample and so on. The only way to deal with the problem is to accept a wide range for the result or conduct a proficiency test, ie. carry out the test on one sample at different laboratories. With more data points, it may be easier to obtain a more meaningful result. Erichsen is OK. German brand so they are using DIN. English translation should be available.

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Tuesday 26 October 2004 1:00:00 am

Our company want buy the abrasion/washability tester for our coating laboratory. What you will advise? (please give address on polimer@tlc.ks.ua)

Nancy Doherty
DR.

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Monday 22 January 2018 7:50:49 am

I want to give you a recommendation of Martindale Abrasion Piling Tester, it brings me a nice result. If you are interested in it, I would like to give you a link: http://www.testextextile.com/product/martindale-abrasion-pilling-tester-tf210/

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