Automatic Adhesion Tester

The new Automatic Pull Off Adhesion Tester now features impressive smart technology. Still simple to use, durable and versatile the ‘AT-A’ Automatic Adhesion Tester measures with ease and precision the adhesion bond strength of applied coatings to metal, wood, concrete and other rigid substrates.

The adhesion bond strength is measured by the tensile pull on a dolly glued to the coating surface. The force is applied through the centre of the dolly by hydraulically loaded pin ensuring an exact central point loading of the force. Adhesion values are recorded by a pressure gauge giving a 1:1 pressure reading.

Instrument Features:

  • Environmentally sealed enclosure – weatherproof, dustproof & shockproof.  Meets or exceeds IP65.
  • Rubberised, shock absorbing grips to provide a stable, skid-resistant footing.
  • Impact & scratch resistant colour touch screen with keypad for operation with or without gloves.
  • Adhesion test with the simple push of a button.  No twisting, pumping or cranking.  No valves to close, needles to reset or scales to adjust.
  • Electronically controlled hydraulic pump that 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.
  • Built-in rechargeable batteries perform over 200 tests per charge.  Continue testing with AC power while batteries recharge.
  • Internal memory stores maximum pull-off pressure, rate of pull, test duration, dolly size, pass/fail, the nature of fracture and user notes for 100,000 pulls in up to 1,000 batches.
  • 10, 14, 20 or 50mm dollies maximise capability and measurement resolution across a wide range of bond strengths
  • Calibrated and certified to +/- 1% accuracy using a NIST traceable load cell.
  • Self-aligning aluminium dollies that enable accurate measurements on smooth or uneven surfaces.
  • LCD displays pressure value in psi or MPa

Smart Technology:

  • Wirelessly connect to your smart device using our free app
    • 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
  • Compatible with PosiSoft desktop software, and PosiTector App.
  • PosiSoft USB Drive – stored readings and graphs can be accessed using universal PC/Mac web browsers or file explorers.  No software required.
  • WiFi technology wirelessly communicates with and downloads software updates.


This testing equipment offers effective quality control with a non-destructive capability and can be tested on both external & internal surfaces of pipes. Conforms to international standards including ISO 4624/16276-1; ASTM D4541/D7234 and others.

Packing List:

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 and video, shoulder strap, Certificate of Calibration traceable to NIST, two-year warranty, sturdy lightweight carrying case.

     ATA20 Kit      ATA50 Kit
Dolly size & stand off*            20mm      50mm
Typical Applications      Coatings on metal      Coatings on concrete, wood & plastic
Range      0.7-24 MPa
.    100-3500psi
.    100-7550 N
     0.4-3.8 MPa
.    50-560 psi
.    100-7550 N
 Resolution      0.01 MPa (1 psi)      0.01 MPa (1 psi)
 Accuracy      +/- 1% Full Scale      +/- 1% Full Scale



Order Code Description
90-ATA20 Automatic Adhesion Tester with 20mm dollies
90-ATA50 Automatic Adhesion Tester with 50mm dollies
Order Code Description
90-ATA50 Kit 50mm Accessory Kit:

  • Interchangeable standoff allows a PosiTest ATM20 or ATA20 to pull 50 mm dollies
  • Ideal for lower bond strength finishes such as coatings
    on wood, concrete and plastic
  • Larger surface area of dolly provides improved low range
    precision and repeatability
  • Includes 50 mm stand-off, 50 mm hole saw and 50 mm
    aluminum test dollies (12)
90-ATA20 Kit 20mm Accessory Kit:

  • Interchangeable standoff allows a PosiTest ATM50 or ATA50 to pull 10, 14 and 20 mm dollies
  • Ideal for high bond strength finishes such as coatings
    on metal
  • Includes 20 mm stand-off, 20 mm hole saw and 20 mm
    aluminum test dollies (20)

  • ResinLab EP11HT 2-Part Epoxy
  • Additional glue, mixing sticks, palettes and cotton swabs
90-10mmD 10mm Dolly (pack of 10)
90-14mmD 14mm Dolly (pack of 10)
90-20mmD 20mm Dolly (pack of 10)
90-50mmD 50mm Dolly (pack of 4)