5. To Cut or Not To Cut? - Pull-Off Adhesion Test

New and updated edition.
When it comes to the pull-off adhesion test method, one of the questions most often asked is whether the coating should be cut around the dolly prior to testing, or whether it should remain uncut.
This depends on your customer, and the simple answer is to refer back to the test method or standard that you are working to. If the standard doesn’t say, then the choice is for the client and the contractor to determine - but note in your report whether you have cut or not, and be sure all adhesion tests are carried out in the same way.
All pull-off adhesion testers follow the same principle. A properly prepared dolly, or pull stub, is glued to the prepared coating, and, once the glue has fully cured, the dolly is pulled off -perpendicularly (or 90 degrees) from the surface. The resultant tensile pull-off force, together with the dolly diameter, and the conditions of the dolly, are all recorded.
For more information on measuring pull-off adhesion on coated substrates using Elcometer's range of pull-off adhesion gauges, please contact Elcometer at [e-mail] or visit our website: elcometer.com/e...
-----
Click here to download the video script in English: www.elcometer....
-----
STANDARDS:
Elcometer 106
AS 1580.408.5, ASTM D 4541, AS/NZS 1580.408.5, EN 13144, EN 24624, ISO 4624, ISO 16276-1, JIS K 5600-5-7, NF T30-062, NF T30-606
Elcometer 106/6
ASTM D 7234, BS 1881-207, DIN 1048-2, EN 1542, EN 12636
Elcometer 506
ASTM D4541, ASTM D7234, AS/NZS 1580.408.5, BS 1881-207, DIN 1048-2, EN 12636, EN 13144, EN 1542, EN 24624, ISO 16276-1, ISO 4624, NF T30-606, NF T30-062
Elcometer 510
ASTM C1583, ASTM D4541, ASTM D7234-12, AS/NZS 1580.408.5, BS 1881-207, DIN 1048-2, EN 1015-12, EN 12636, EN 13144, EN 1542, EN 24624, ISO 16276-1, ISO 4624, NF T30-606, NF T30-062

[@bharathirajad639]

is Pull off test applicable for the paintings applied on Hot parts (High temperature application coatings) for example 1/2-component copolymer / multipolymer applied over Steel parts with 450 deg celsius working conditions

[@ElcometerOfficialChannel]

Hi,
At such high temperatures, the adhesive would not be viscous enough to complete a successful test.

[@jorgealmeida7064]

O meu equipamento tem um Problema, não faz ancoragem no Dolly, Solução? me ajudem.

[@ElcometerOfficialChannel]

Thank you for comment.
We are saddened to hear that you are experiencing problems with your product.
Please contact us at [e-mail] or visit www.elcometer.com/contact-us to find your local Elcometer distributor.