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product manual:

There are currently three main methods for testing the adhesion of the coating to the substrate: one is the circle method, the other is the grid method, and the other is the pull method. Both the circle method and the cross-cut method can only grade and divide the adhesion, but cannot be quantified; while the pull method can quantitatively describe the specific size of the adhesion (in Mpa). For comparison of the adhesion of different coatings, it is Effective, very suitable for R&D personnel to use when developing formulas.

The ZP-FZL-M digital display pull-off adhesion tester is an intelligent adhesion tester developed by our company with reference to similar foreign products. It uses hydraulic pressure to pull off the coating on a specific area. The pull off force can be Accurately displayed by digital display, and there are two different units MPa and psi options.

This instrument is the first in China, and it has the characteristics of simple operation, accurate data, low maintenance cost and low price of supporting consumables. The instrument has a USB interface, which is equivalent to a USB flash drive. After connecting to the computer via a data cable, the operator can directly export all test data.

This instrument is widely used in some concrete base coatings, anti-corrosion coatings or adhesion testing between different coatings in multi-layer coating systems.

Test principle:

The test sample or system is applied to a flat plate with uniform surface structure with uniform thickness.

After the coating system is dried/cured, the test column is directly bonded to the surface of the coating with a special adhesive.

After the adhesive is cured, put the bonded test combination on the BGD 500 digital display pull-off adhesion tester. The tester uses a hydraulic pump to pull the test column from the coating uniformly and at a speed not exceeding 1MPa/s. The required force is directly displayed through the LCD screen of the instrument, so as to test the force required to break the adhesion between the coating/substrate.

It is worth noting that the test results are expressed by the tensile force between the failure interfaces (adhesion failure) or self-destruction (cohesive failure), and adhesion/cohesive failure may occur simultaneously.

The main performance of the instrument:

1. Portable design, built-in rechargeable lithium battery, no external power supply, suitable for field and laboratory use;

2. Standard configuration of Micro-USB interface, the instrument is similar to a USB flash drive after connecting to a computer, which can directly copy the stored experimental data without installing any software, which is simple and convenient to use;

3. Comply with GB/T 5210, ASTM D4541/D7234, ISO 4624/16276-1 and other standards;

4. The machine has a built-in real-time clock, and all saved data have corresponding experiment date and time; it is convenient for users to summarize and manage the experimental data;

5. The sizes of pull-off spindles provided for products with different bonding strengths are 10, 14, 20 and 50mm, which expands the function and resolution of the instrument;

6. Before leaving the factory, each instrument is calibrated with a NIST traceable pressure sensor, with an accuracy of ±1% of full scale, and a calibration certificate is attached;

7. Internal storage pull-off data, including the maximum pull-off force, pull-off rate, test time and pull-off spindle size;

8. The pull-off rate display makes it easier for the operator to observe and adjust the pull-off rate, which conforms to the international standard test method;

9. Just press the button to select the size of the pull-off unit, change the measurement unit or store the reading;

10.No conversion table is needed, the instrument automatically calculates the pull-out force according to the pull-out unit size;

11.The pull-off unit uses inexpensive and high-quality aluminum spindles that meet international standards, which do not need to be cleaned and reused, and can be used for long-term record keeping;

12.The aluminum automatic centering pull-off unit ensures that the pull-off force is evenly applied to the test indication when testing on smooth or uneven surfaces, and prevents unilateral pull-off;

13.The pressure sensor for advanced industry ensures the continuity of accuracy;

14.LCD display, there are two units of MPa or psi;

Standards compliant:

1. ISO 4624 "Paints and varnishes-Pull-offtest for adhesion"

2. ASTM D 4541 "StandardTest Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers"

3. ASTM D7234 "Standard Test Method for Pull-Off Adhesion Strength of Coatings on Concrete Using Portable Pull-Off Adhesion Testers"

4. GB/T 5210 "Paint and varnish pull method adhesion test"

The main technical parameters:

Spindle size	20mm (standard); 10mm, 14mm, 50mm (optional)
Resolution	0.01MPa(1psi)
Precision	±1% full scale
Pull off strength	10mm spindle→0-80MPa; 14mm spindle→0-40MPa; 20mm spindle→0-20MPa; 50mm spindle→0-3.5MPa;
power supply	Built-in rechargeable lithium battery, and standard charging adapter power supply
Host size	360mm×75mm×115mm (length x width x height)
Host weight	3KG
Packaging Information	One host of digital display pull method adhesion tester, 20mm aluminum test spindle (20), one sleeve cutter, one bottle of glue, one Micro-USB data cable, one operation manual, one portable and strong carrying case .