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AT-M Pull-Off Adhesion Tester - Positest ATM

Made in USA
ATM Adhesion Tester
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The AT-M has been replaced by the new and improved ATM. Please click here to view the new model

The Positest AT Measures adhesion of coatings to metal, wood, concrete and other substrates - Revolutionary self-alignment feature and pull rate indicator brings new meaning to adhesion measurements.


  • Portable, hand-operated instrument requires no external power source – ideal for lab and field use.
  • Large, easy-to-read LCD
  • Pull Rate Indicator – allows operator to easily monitor and adjust the rate of pull in accordance with international test methods.
  • Easily select dolly sizes, change measurement units or store readings, with the touch of a button
  • Conversion charts not required – tester automatically calculates pressure based on dolly size
  • Inexpensive, single-use dollies eliminate cleaning re-use and can be kept as a permanent record
  • Each kit comes with everything needed for testing


  • Weatherproof, dustproof and shockproof
  • Quality hydraulic pump can be used in any position
  • Rugged carrying case
  • One year warranty

  • Every AT-M Adhesion Tester pressure system is calibrated and certified to ± 1% accuracy using an NIST traceable load cell
  • Self-aligning dolly enables accurate measurements on smooth or uneven surfaces
  • Hi-grade, industrial pressure sensor ensures continued accuracy
  • Conforms with ASTM D4541/D7234, ISO 4624, SSPC-CS 23.00/AWS C2.23/NACE No. 12, and others
  • Internal Memory stores maximum pull-off pressure, rate of pull, test duration and dolly size for up to 200 pulls
  • Optional software available for downloading to a computer
  • LCD displays pressure value in psi or MPa
  • 10, 14, 20 or 50 mm dollies maximize capability and accuracy across a wide range of bond strengths
Dolly Size
Adhesion Strength
10000 psi
70 MPa
6000 psi
40 MPa
3000 psi
20 MPa
500 psi
3.5 MPa
* supplied with PosiTest AT
** requires 50mm kit

Optional Accessories


50 mm Accessory Kit

  • Ideal for lower bond strength finishes such as coatings on wood, concrete and plastic
  • Larger surface area of test dolly provides improved low range precision and repeatability
  • Range 0 - 500 psi (0 - 3.5 MPa)
  • Includes 50 mm stand-off, 50 mm hole saw, and 50 mm test dollies (12)

Drilling Template for 50 mm Dollies

  • Drilling template and drill bits to isolate test area, ideal for thicker coatings on concrete. Includes (10) drill bits 5/32" (4 mm)
5 PosiSoft for Windows® analysis software
  • Ideal solution for those who wish to download to a PC for printing or archiving
  • Allows entry of notes and annotations
  • Multi-language support including English, German, Italian, Spanish and French
  • Exports to a document or spreadsheet
  • Includes USB cable for computer hook-up

Adhesive Kit

  • Additional adhesive, mixing sticks, palettes and cotton swabs
3 Dollies
  • Additional supplies of standard 20 mm and 50 mm dollies
  • Custom 10 mm and 14 mm dollies (24 hour drying time recommended)

Complete Kit

Supplied as a complete kit including Adhesion tester with digital display, 20 mm aluminum test dollies (20), Abrasive pad, Cutting tool, Adhesive with mixing sticks and palettes, Cotton swabs, Instruction booklet, Certificate of Calibration traceable to NIST, Instructional Video, USB Cable, PosiSoft Software - available as a free download, Sturdy, lightweight carrying case, Two-year warranty, Built-in rechargeable NiMH batteries with recharger/AC power supply.

Related Products

ATA Adhesion Tester
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Automatic Adhesion Tester - Positest ATA Automatic
- New electronically controlled hydraulic pump automatically applies smooth and continuous pull-off pressure at a user-specified rate


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Item Description Price
10mm Dollies - 10 Pack - DOLLY10
10mm Dollies - 100 Pack
14mm Dollies - 10 Pack - DOLLY14
14mm Dollies - 100 Pack
20mm Dollies - 10 Pack - DOLLY20
20mm Dollies - 100 Pack
50mm Dollies - 4 Pack - DOLLY50, Requires Standoff Supplied in AT-50-KIT
50mm Dollies - 50 Pack, Requires 50mm Standoff Supplied in AT-50A-KIT. Not for use with AT-50C-KIT.
Includes 50 mm stand-off, holesaw and 12 test dollies - AT50KIT
Additional Adhesive Kit - ATADHESIVEKIT
Drilling Template for 50 mm Dollies - TMPLTAS
In stock
1 Week Lead Time (Estimated)
2-3 Week Lead Time (Estimated)
Lead Time Varies, Please contact us for availability.