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PosiTest® AT Pull-off Adhesion Testers – Manual or Automatic


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, ISO 4624/16276-1,
EN 1542/12004-2, AS/NZS 1580.408.5 and others

$2,045.00$2,945.00

Documents

Download Manual

Videos

How to Measure Adhesion Using the PosiTest® AT Adhesion Tester
PosiTest® AT Self-Alignment Feature
PosiTest AT-A – Automatic Adhesion Tester

Description

PosiTest® AT-A Automatic

  • Electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure. Greatly reduces user effort and the risk of influencing the pulling process
  • User adjustable pull rate, pull limit and hold time
  • Internal memory stores maximum pull-off pressure, rate of pull, test duration, dolly size, pass/fail, nature of fracture and user notes for 100,000 pulls in up to 1,000 batches
  • Impact and scratch resistant color touch screen with keypad for operation with or without gloves
  • Compatible with PosiSoft® DesktopPosiSoft.net and PosiTector® App (Apple iOS and Android)

PosiTest® AT-M Manual

  • 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
  • Internal memory stores maximum pull-off pressure, rate of pull, test duration and dolly size for up to 200 pulls
  • Compatible with PosiSoft® Desktop for viewing, printing and storing measurement data

PosiTest® AT-A Automatic

Key Features…

  • Electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure. Greatly reduces user effort and the risk of influencing the pulling process
  • Impact and scratch resistant color touch screen with keypad for operation with or without gloves
  • Built-in rechargeable battery performs over 200 tests per charge. Continue testing with AC power while the battery recharges.
  • Environmentally sealed enclosure—weatherproof, dustproof and shockproof—meets or exceeds IP65
  • Rubberized, shock absorbing grips provide a stable, skid-resistant footing
  • 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. Maximum pull-off pressure by dolly size…
    – 10 mm: 14000 psi (96 MPa)
    – 14 mm: 7000 psi (50 MPa)
    – 20 mm: 3500 psi (24 MPa)
    – 50 mm: 560 psi (3.8 MPa)
  • User selectable measurement units: psi (pounds per square inch), MPa (Megapascal), Nmm2 (Newtons per millimeter square) or Newton (force)
  • User adjustable pull rate, pull limit and hold time
  • Rotating display for horizontal and vertical use
  • Calibrated and certified to ± 1% accuracy using a NIST traceable load cell

Adhesion testers include everything needed for testing: Automatic Adhesion Tester, built-in rechargeable NiMH battery with charger, dollies, abrasive pad, cutting tool, glue with mixing sticks and palettes, cotton swabs, USB cable, PosiSoft® Software, instruction booklet, shoulder strap, Certificate of Calibration traceable to NIST, two-year warranty, and a sturdy, lightweight carrying case^

* Optional 20mm/50mm/50 mm C1583/50 mm Tile Conversion Kits allow each model to be used with alternative dolly sizes. Custom 10 and 14 mm dollies are available for special applications (compatible with 20 mm stand off).

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

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® DesktopPosiSoft.net and PosiTector® App (Apple iOS and Android) software solutions

PosiTector® App Features

PosiTector App in hand

  • 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

AT-A touch screen
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.
screenshot of AT-A screen during use
User adjustable dolly size, pull rate, pull limit and hold time.
screenshot of AT-A screen during use
Batch summary provides an at-a-glance review of test results.
screenshot of AT-A screen during use
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.
screenshot of AT-A screen during use
Notes can be added for each reading.
screenshot of AT-A screen during use
Include a note for a batch (group) of readings.
screenshot of AT-A screen during use
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. For full details and examples see Visual Analysis and Recording of Test Results.

fracture types fracture type explanations with screenshot of touch screen

 

PosiTest® AT-M

Key Features…

  • Manual hydraulic pump designed to apply smooth and continuous pressure with a single stroke
  • NEW High-contrast, easy to read color display
  • Environmentally sealed enclosure—weatherproof, dustproof and shockproof—meets or exceeds IP65
  • Self-aligning aluminum dolly enables accurate measurements on smooth or uneven surfaces
  • Pull Rate Indicator to manually monitor and adjust the rate of pull
  • Internal memory stores maximum pull-off pressure, pull rate, test duration and dolly size for up to 200 pulls
  • NEW Field replaceable AAA alkaline batteries provide up to 16 hours of testing
  • 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)
  • User selectable measurement units: psi (pounds per square inch) or MPa (Megapascal)
  • Every PosiTest® Adhesion Tester is calibrated and certified to ± 1% accuracy using a NIST traceable load cell
  • Compatible with PosiSoft Desktop software for viewing, printing and storing measurement data

Adhesion testers include everything needed for testing: Manual Adhesion Tester, 3 AAA batteries, dollies, abrasive pad, cutting tool, glue with mixing sticks and palettes, cotton swabs, USB cable, PosiSoft® Software, instruction booklet, Certificate of Calibration traceable to NIST, two-year warranty, and a sturdy, lightweight carrying case

* Optional 20mm/50mm/50 mm C1583/50 mm Tile Conversion Kits allow each model to be used with alternative dolly sizes. Custom 10 and 14 mm dollies are available for special applications (compatible with 20 mm stand off).

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

SKU: N/A Category: Tag:
Weight 18 lbs
Dimensions 18 × 18 × 12 in
Choose Manual or Automatic

PosiTest AT-A, PosiTest AT-M

Choose Application

ATM20, ATM50, ATM50T, ATM50C, ATA20, ATA50, ATA50T, ATA50C

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