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Description
PosiTest® AT
Pull-Off Adhesion Testers
MEASURES ADHESION OF COATINGS TO METAL, WOOD, CONCRETE AND OTHER RIGID SUBSTRATES.
- Select from four Stand-offs – 20 mm, 50 mm, 50×50 mm Tile and 50 mm C1583
- Environmentally sealed enclosure – weatherproof, dustproof and shockproof – meets or exceeds IP65
- Inexpensive, single-use dollies eliminate cleaning for re-use and can be kept as a permanent record
- Self-aligning aluminum dolly enables accurate measurements on smooth or uneven surfaces
- 10, 14, 20 or 50 mm dollies maximize capability and measurement resolution across a wide range of bond strengths
- Calibrated and certified to ± 1% accuracy using a NIST traceable load cell
- Certificate of Calibration showing traceability to NIST included (Long Form)
Conforms to international standards including ASTM C1583/D4541/D7234/D7522, ISO 4624/16276-1,
EN 1542/12004-2, AS/NZS 1580.408.5 and others
EN 1542/12004-2, AS/NZS 1580.408.5 and others
Features
Simple
- Inexpensive, single-use dollies eliminate cleaning for re-use and can be kept as a permanent record
- 10, 14, 20 or 50 mm dollies maximize capability and measurement resolution across a wide range of bond strengths
Durable
- Environmentally sealed enclosure – weatherproof, dustproof and shockproof – meets or exceeds IP65
Accurate
- Self-aligning aluminum dolly enables accurate measurements on smooth or uneven surfaces
- Calibrated and certified to ± 1% accuracy using a NIST traceable load cell
Key Features…
- Manual hydraulic pump designed to apply smooth and continuous pressure with a single stroke
- Pull Rate Indicator to manually monitor and adjust the rate of pull
- Environmentally sealed enclosure – weatherproof, dustproof and shockproof – meets or exceeds IP65
- Self-aligning aluminum dolly enables accurate measurements on smooth or uneven surfaces
- 10, 14, 20 or 50 mm dollies maximize capability and measurement resolution across a wide range of bond strengths
– 10 mm: 10000 psi (70 MPa)
– 14 mm: 6000 psi (40 MPa)
– 20 mm: 3000 psi (20 MPa)
– 50 mm: 480 psi (3.3 MPa)
– 50×50 mm: 375 psi (2.585 MPa) - Every PosiTest Adhesion Tester pressure system is calibrated and certified to ± 1% accuracy using a NIST traceable load cell
- Internal memory stores maximum pull-off pressure, pull rate, test duration and dolly size for up to 200 pulls
- Compatible with PosiSoft Desktop software for viewing, printing and storing measurement data
- Software Updates via web keep your instrument current
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ATA20 |
ATA50 |
ATA50T |
ATA50C |
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DOLLY SIZE & STANDOFF
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DOLLY SIZE & STANDOFF | DOLLY SIZE & STANDOFF | DOLLY SIZE & STANDOFF |
| 20 mm | 50 mm | 50 x 50 mm | 50 mm |
| TYPICAL APPLICATIONS | TYPICAL APPLICATIONS | TYPICAL APPLICATIONS | TYPICAL APPLICATIONS |
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Coatings on
Metal |
Coatings on Concrete, Wood and Plastic |
Tile Adhesion Strength Conforms to EN 12004-2 |
Concrete Surfaces and Overlays Conforms to ASTM C1583 and EN 1542 |
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RANGE
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RANGE | RANGE | RANGE |
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0.7 – 24 MPa
100 – 3500 psi |
0.4 – 3.8 MPa 50 – 560 psi |
0.4 – 3.033 MPa 50 – 440 psi |
0.4 – 3.8 MPa 50 – 560 psi |
Range
0.01 MPa (1 psi)
Accuracy
±1% Full Scale
Memory and Reporting Features
- Internal memory stores maximum pull-off pressure, rate of pull, test duration and dolly size for 100,000 pulls in up to 1,000 batches
- Record the results as pass/fail and the nature of fracture – cohesive, adhesive and glue failures
- Wirelessly connect to your smart device using our free PosiTector App (Apple iOS and Android)
- WiFi technology wirelessly communicates with PosiSoft.net, downloads software updates and allows access to stored measurement data using standard web browsers (see WiFi Features for full details)
- PosiSoft USB Drive – stored readings and graphs can be accessed via USB using universal PC/Mac web browsers or file explorers. No software required
- Compatible with PosiSoft Desktop, PosiSoft.net and PosiTector App (Apple iOS and Android) software solutions
PosiTector App Features
- Add images and notes using the camera or keyboard
- Create customized, professional PDF reports
- Share, backup, synchronize and report measurement data
- Auto-pairing Bluetooth (BLE) connection
- See the Help File to learn about how it works
Touch Screen Display
Use the touch screen to interact with menu options. Swipe horizontally to navigate between views or vertically to move between batch readings. Alternatively, the keypad can be used for navigation and selection.
User adjustable dolly size, pull rate,
pull limit and hold time.
pull limit and hold time.
Batch summary provides an at-a-glance review of test results.
View test parameters and reading results. Reading is recorded as pass or fail based on set test parameters. The pass/fail results can be revised.
Notes can be added for each reading.
Include a note for a batch (group) of readings.
Record the nature of failure – cohesive, adhesive and glue failures.
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.
- Cohesive fracture: fracture occurs within a coating layer (same coating on dolly face and coated surface).
- Adhesive fracture: fracture occurs at the interface between layers (coating on dolly face differs from surface).
- Glue failure: visible separation of the glue from itself, the coating or dolly (no coating visible on the dolly face).
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.
PRODUCT DATA SHEET
Instruction ManualAdditional information
| Weight | 6803.88555 kg |
|---|---|
| Model | PosiTest AT-A ATA20A |
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