Measures adhesion of coatings to metal, wood, concrete and other ridgid substrates. Electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure. Greatly reduces user effort and the risk of influencing the pulling process.
Measures adhesion of coatings to metal, wood, concrete and other ridgid substrates. Electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure. Greatly reduces user effort and the risk of influencing the pulling process.
Features
Memory and Reporting Features
Recording the Nature of the Fracture
Upon completion of a pull-off test, the dolly and coated surface should be examined. In addition to pull-off force, many National and International standards such as ASTM D4541 and ISO 4624 require the nature of the fracture to be recorded.
The cohesive and adhesive fracture visual analysis can be recorded using the PosiTest AT-A's keypad or touch screen display. Alternatively, the information can be reported using the PosiTector App.
Fractures are visually estimated and recorded as a percent of each. The two layer example below illustrates a cohesive fracture within coating layer 1 and layer 2 (visually estimated at 50% each). Recorded results are included in reports.
The PosiTest AT-A can record fracture information for up to five layers. For full details and examples see Visual Analysis and Recording of Test Results.
Dolly Size and Stand-Off | 20 mm |
Range | 0.7 to 20 MPa / 100 to 3000 psi |
Resolution | 0.01 MPa (1 psi) |
Accuracy | ±1% Full Scale |
Included Dollies | 20 mm (qty 20) Aluminum |
Cutting Tool | 20 mm hole saw |
Typical Applications | Higher bond strength coating on metal |
Features
Dolly Size and Stand-Off | 20 mm |
Range | 0.7 to 20 MPa / 100 to 3000 psi |
Resolution | 0.01 MPa (1 psi) |
Accuracy | ±1% Full Scale |
Included Dollies | 20 mm (qty 20) Aluminum |
Cutting Tool | 20 mm hole saw |
Typical Applications | Higher bond strength coating on metal |
Features