Adhesion Testing

Checkline Europe's Technical Support 17 Jul 2026

Choosing how to run adhesion testing is really two decisions: which pull-off tester fits the work, and how tightly the whole test process — dolly bonding, scoring, curing and failure-mode reporting — has to be controlled. For many jobs the instrument is the easy part; the result stands or falls on the setup around it. The two guides below pick up from whichever of those decisions is still open.

This is the check that gets scrutinised at coating acceptance — a marine or offshore QC sign-off, a bridge or tank handover, a customer audit — where a pull-off value is only defensible with its failure plane, dolly size, cut condition and adhesive note recorded. What usually decides the setup is how controlled the loading rate and reporting must be: a hand-operated field check, or a controlled-rate instrument with a verification record an auditor will accept.

1. Common Measurement Scenarios

You are most likely here if one of these sounds like your situation:

You already know pull-off testing is the right method, and the choice is now about loading control and workflow rather than method.
Field QC to ASTM D4541 on protective coatings over steel, where a hand-operated hydraulic pump is acceptable.
A standard or customer requires a controlled, repeatable loading rate — typical for ISO 4624 lab work and contracts that compare results across operators or sites.
The coating is brittle or multilayer, or applied over a fragile substrate such as concrete, where dolly bonding and test validity drive the result more than the instrument does.

2. Available Selection Guides

Select a Pull-off Adhesion Tester if the main decision is which instrument fits the expected range, workflow and reporting needs — the open question is manual versus automatic loading.
Adhesion Test Setup and Validity if the bigger question is how controlled the full process must be, with dolly bonding, scoring, curing and failure-mode reporting still open.

3. Supporting Knowledge Resources

If you would rather understand the method before deciding, start here:

Adhesion Testing — what the test measures and why the failure mode matters as much as the pull-off value.
Pull-off Adhesion Test Principles — what is physically measured and how to read the output.
Surface Preparation and Dolly Bonding — the preparation and bonding that most often decide whether a result is valid.
Adhesion Test Failure Modes — classifying where failure occurred and what it tells you.