Digital Pull off Adhesion Tester
In order to perform satisfactorily, coatings must adhere to the substrates on which they are applied. There are three different adhesion test procedures to assess the resistance of paints to separate from the substrate. The cross cut test, also described as cross-hatch, uses a blade to cut through the coating to the substrate. At least two cuts are made that intersect at 90 degrees to get a right angle lattice pattern. The cross-cut area is observed for any adhesion failure. The second method to test the coating adhesion is using a stylus or loop that an increasing amount of weight is applied until the coating is removed from the substrate. The third method called pull-off adhesion, measures the amount of tensile stress to pull the coating off the substrate. A dolly is glued to the coating surface, after the glue is cured, a testing apparatus is attached to the loading fixture and aligned to apply tension perpendicular to the test surface. The force applied is gradually increased and monitored until either a plug of coating material is detached, or a specified value is reached
BGD 500 Digital Pull-off adhesion Tester is a portable, hand-operated instrument which is used to measure the force required to pull a specified test diameter of coating away from its substrate using hydraulic pressure. The pressure is displayed on a digital LCD and represents the coating s strength of adhesion to the substrate.
It evaluates the adhesion (pull-off strength) of a coating by determining the greatest tensile pull-off force that it can bear before detaching. Breaking points, demonstrated by fractured surfaces, occur along the weakest plane within the system consisting of dolly, adhesive, coating layers and substrate
BGD 500 Digital Pull-off adhesion Tester conforms to ASTM D 4541, ASTM D 7234, EN 13144, ISO 4624, ISO 16276 etc.
Characters
Convenient
- Portable design, can be used anywhere.
- Built-in rechargeable lithium battery, no need for any external power source.
- Selectable directly four different sizes dolly for different resolution and testing range.
- Get the testing results from LCD directly.
- Includes all tools needed for testing.
Precise
- Each PsiaTester’s pressure system is calibrated to within 1% accuracy by NIST traceable load cells.
- High-precise professional sensor ensures 0.01 MPa resolution.
- Self-aligning dollies ensure reliable testing results for smooth or uneven surfaces.
- Comes with calibration certificate.
Intelligent
- Store all test results (includes Max. Pull-off power, pull-off rate, dolly size and time) automatically.
- Two units (MPa and psi) for selection, convertible automatically.
- USB interface as standard, no software needed. PsiaTester acts as a U-disk, allowing data read directly.
- Displays pull-off rate so users can monitor and adjust pull speed according to requirements.
Durable
- Waterproof, dustproof and shockproof design meets harshest operating environments.
- Strong plastic carrying case.
- One year warranty.
For Automatic Type
- Originated in China, can test adhesion automatically by pull-off method with repeatable results.
- Electronically controlled hydraulic pump applies smooth and continuous pull-off pressure, reducing user effort and risk of errors.
- Internal memory stores maximum pull-off pressure, rate of pull, test time, dolly size.
- Pull rate is controlled by PID closed-loop, stable and adjustable.
- Set a constant pull force to judge if coating can be separated under a specific force.
- 5.0 inch big touch screen, displays pull-off force curve, operator can see changes clearly during the test.
| Ordering Information → Technical Parameters ↓ | BGD 500 Digital Pull-off Adhesion Tester |
BGD 500/S Automatical Digital Pull-off Adhesion Tester |
|---|---|---|
| Dolly Size | 20mm (standard); 10mm, 14mm, 50mm (optional) | 10mm, 14mm, 20mm, 50mm (optional) |
| Resolution | 0.01 MPa (1 psi) | |
| Accuracy | ±1% full scale | |
| Max. Pull-off Pressure (MPa/s) |
2.8–80 (10mm dolly) 1.4–40 (14mm dolly) 0.7–20 (20mm dolly) 0.4–3.5 (50mm dolly) |
4.0–80 (10mm dolly) 2.0–40 (14mm dolly) 1.0–20 (20mm dolly) 0.2–32.0 (50mm dolly) |
| Pull-off Rate Set Range (MPa/s) | — |
0.4–6.0 (10mm dolly) 0.2–3.0 (14mm dolly) 0.1–1.5 (20mm dolly) 0.02–0.24 (50mm dolly) |
| Size/Weight | 360mm × 75mm × 115mm / 3KG | 240mm × 138mm × 81mm / 4KG |
| Power | Built-in rechargeable lithium battery, and standard configuration charging adapter. | |
| Standard Packing List |
① Adhesion Tester ② 20mm Aluminum test dollies (20 pcs) ③ Cutting tool for 20mm dollies ④ 3M Adhesive and glue gun ⑤ Micro–USB cable ⑥ Operation Manual ⑦ Carrying case |
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| Accessories Ordering Information |
BGD 1520 — 10mm Dolly (10 pcs/package) BGD 1521 — 14mm Dolly (10 pcs/package) BGD 1522 — 20mm Dolly (10 pcs/package) BGD 1523 — 50mm Dolly (10 pcs/package) BGD 1524 — 50mm Dolly Base BGD 1527 — 3M Adhesive BGD 1529 — Electric Cutting Tool BGD 1529/A — Cutting Head for 20mm Dolly BGD 1529/B — Cutting Head for 50mm Dolly |
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