DeFelsko PosiTest® Pull-Off Adhesion Testers

Manual Adhesion Testers and

Automatic Adhesion Testers

Adhesion testing is made easy with Adhesion Testers and the Pull Off Adhesion Tester measures the adhesion of coatings to metal, wood, concrete and other substrates – Revolutionary self-alignment feature and pull rate indicator brings new meaning to adhesion measurements. Conforms to national and international standards including ASTM D4541/D7234, ISO 4624/16276-1, AS/NZS 1580.408.5 and other

DFT Instruments

will help you choose the adhesion tester that is perfect for you and your business

PosiTest AT
Manual Adhesion Tester


  • Pull Rate Indicator allows operator to easily monitor and adjust the rate of pull in accordance with international test method
  • Freelance DesignersEasily 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 for re-use and can be kept as a permanent record
  • Each kit comes with everything needed for testing


  • Environmentally sealed enclosure – weatherproof, dustproof and shockproof
  • Can be used in any position
  • Rugged carry case
  • 24 Month warranty


  • Every PosiTest Adhesion Tester pressure system is calibrated and certified to ± 1% accuracy using NIST traceable load cell
  • Self-aligning aluminum dolly enables accurate measurements on smooth or uneven surfaces
  • Hi-grade, industrial pressure sensor ensures continued accuracy
  • Conforms to national and international standards including ASTM D4541/D7234, ISO 4624/16276-1, AS/NZS 1580.408.5 and others


  • Internal Memory stores maximum pull-off pressure, rate of pull, test duration and dolly size
  • Optional PosiSoft® software available for downloading
  • LCD displays pressure value in psi or MPa
  • 10, 14, 20 or 50 mm dollies maximize capability and measurement resolution across a wide range of bond strengths

Helpful Adhesion Testing Videos

Please view our helpful instructional videos on the DeFelsko PosiTest Adhesion Testers

Pull-Off Adhesion Testing 3:10

This is a very useful instructional video for the the pull off adhesion tester

Manual Adhesion Tester 9:29

Instructional video for the PosiTest AT Manual Adhesion Tester

Auto Adhesion Tester 0:24

A short video clip of the PosiTest AT Automatic Adhesion Tester

Two Models Available