PosiTest AT-M Manual

The Defelsko PosiTest AT-M adhesion tester measures the force required to remove coatings from their substrate accurately and with certification, ideal for both laboratory and field use.

The PosiTest AT-M adhesion tester allows evaluation of the force needed to detach coatings from their substrate using hydraulic pressure. Ideal for laboratories and field applications, it ensures precise and repeatable measurements while complying with international standards.

Main Features of the PosiTest AT-M

• Simple and Accurate
  • Manual hydraulic pump for smooth, continuous pressure.
  • Adjustable pull-off rate indicator.
  • Self-aligning aluminum dollies for smooth or irregular surfaces.
  • Resolution of 1 psi (≈0.01 MPa) and ±1% accuracy across the full range.
• Durable and Reliable
  • Dust-, impact-, and water-resistant sealing (IP65).
  • Weatherproof and rugged housing.
  • High-contrast color LCD, easy to read.
  • Compatible with field-replaceable AAA batteries, up to 16 hours of testing.
• Versatile
  • Measurement ranges by dolly size:
    • 10 mm dollies: 400–10,000 psi (2.8–70 MPa)
    • 14 mm dollies: 200–6,000 psi (1.4–40 MPa)
    • 20 mm dollies: 100–3,000 psi (0.7–20 MPa)
    • 50 mm dollies: 50–500 psi (0.4–3.5 MPa)
  • Selectable units: psi or MPa.
  • Internal memory for 200 tests, including maximum pressure, speed, duration, and dolly size.
  • Compatible with PosiSoft Desktop software to view, print, and store data.
• Powerful
  • Fast, repeatable adhesion measurements for coatings, adhesives, and concrete, metal, wood, and plastic surfaces.
  • Optional kits expand capability with 10 mm and 14 mm dollies.
  • Complies with international standards: ASTM C1583, D4541, D7234, D7522, ISO 4624/16276-1, EN 1542/12004-2, AS/NZS 1580.408.5.

Kit Contents

Each kit includes:

• Manual PosiTest AT-M adhesion tester.
• 3 AAA batteries.
• Aluminum and steel dollies by size.
• Cutting tools and saws.
• Adhesive, mixing sticks, and spatulas.
• Cotton swabs.
• USB cable and PosiSoft software.
• NIST-traceable calibration certificate.
• Rugged, lightweight case.
• Two-year warranty.

Frequently Asked Questions (FAQ)

What is a PosiTest AT-M adhesion tester?
It is a manual hydraulic instrument that measures the force required to detach coatings from their substrate, providing accurate, traceable data.

On what surfaces can it be used?
Metals, wood, concrete, plastic, and cementitious adhesives for tiles.

Which standards does the PosiTest AT-M comply with?
ASTM C1583, D4541, D7234, D7522, ISO 4624/16276-1, EN 1542/12004-2, AS/NZS 1580.408.5.

Can it be used in the field?
Yes, it is portable (5.5 kg), dust- and water-resistant, and operates with replaceable AAA batteries.

Does the tester store measurement data?
Yes, it stores up to 200 tests and can connect to PosiSoft Desktop software for analysis and reporting.