You can measure the depth of cutting by measuring the amount of spins given to the coring rig's handles. And you should cut further (about 1 inch) than the interface you want to test, which thickness should be a known number by the time you take on this kind of projects.

5000 N / 4400 mm2 = 1.14 MPa

Hello Mark, it is because we don't want the reservoir to spill liquid out once the temperature probe is introduced.

Thank you for the feedback. We will consider your suggestion for future videos.

Hi. We use our Diamond Planing Wheel B-10010. If you follow the link you can find out more about the system. germann.org/products-by-application/bondtensile-strength/bond-test

In my mind, partial coring is feasible and should be done always. Of course, we always core at least 1 inch below the interface to be tested. If you perform the partial coring directly in a rough surface you might induce cracking that will weaken your interface zone. Therefore, prior surface preparation has to be conducted using Germann's Diamond Planing Wheel. Germann's Pull-Out Test procedure is the most time consuming but, the most accurate as well.

Use any other epoxy than GRA and you will have to wait about 24 hours lol. That would turn into a very expensive test then.

Those are just done with a 90 degree pull test by hand. All you want is that the sealant ruptures within itself before losing adhesion to the substrate. Pass or fail only.