Overview
The pull-out adhesion tester is a Portable adhesion testing instrument that uses hydraulic pull-out force to disbond a unit area coating from a substrate. The instrument is suitable for laboratories and factories. It displays the adhesion strength in the measurement range of 0-3000psi in Ps and MPa units through the LCD screen. It has the advantages of waterproof and dustproof, and is equipped with a 15-meter long hose for narrow area measurement.
Features
1. Portable design, built-in rechargeable lithium battery, no external power supply, suitable for field and laboratory use
2. Standard Micro-USB interface, you can directly copy and store data after connecting to the computer, no need to install software
3. Built-in real-time clock, all saved data comes with experimental date and time, which is convenient for summary management
4. Available in 10, 14, 20 and 50mm pull-off spindle sizes with expanded functionality and resolution
5. Factory calibrated by NIST traceable pressure sensor with accuracy of +/- 1% of full scale
6. Internal storage of pull-off data, including maximum pull-off force, pull-off rate, test time, and spindle size
7. Pulling rate display function, easy for operators to observe and adjust, in line with international standards
8. Press the button to select the spindle size, unit or store the reading
9. Automatically calculate the pull-off force according to the spindle size, no need to change the table
10. Use cheap and high-quality aluminum spindles that meet international standards
11. Aluminum automatic pull-off unit ensures uniform force distribution during testing on smooth or uneven surfaces
12. Advanced industrial pressure sensors ensure accuracy continuity
13. LCD display supports MPa or psi units
Principle
The coating sample is applied to a flat plate with a uniform surface structure at a uniform Film thickness, and after drying/curing, the test column is bonded to the coating surface with a special Adhesive. After Adhesive curing, the test combination is placed on the instrument, and the test column is pulled off from the coating by a hydraulic pump at a speed of not more than 1MPa/s. The required force value is directly displayed through the LCD screen to test the force required to destroy the adhesion between the coating/substrate. The damage may be manifested as interfacial adhesion failure or coalescence failure of the coating itself, or both.
Standards
GB/T5210、ISO4624、16276-1、ASTMD4541、D7234
Steps
1. Apply coating sample to plate and drying/curing
2. Adhesive the test column to the coating surface
3. Adhesive curing
4. Place the bonding test combination on the instrument
5. Pull off the test column at a uniform speed through the hydraulic pump
6. Read the force value result displayed on the LCD screen
