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P.A.T.T.I.® Micro

Product Description
Micro with choice of Piston
$ 3,195.00 $ 3,495.00

"Looking to improve your Adhesion Testing results?"

Read the following White Paper to learn more about our newest Patent-Pending Product (still in development)





Our Newest P.A.T.T.I. with Advanced Features Set


  • The same quality you have come to expect from the P.A.T.T.I.®

  • Our smallest and most portable tester yet - control module measures 3.5" x 4.5" x 1.5" and weighs just over 1 lb.

  • No conversion charts needed - simply set the piston and stub size prior to testing and the conversion is performed for you

  • The 2 line backlit alphanumeric display informs the user of the current piston and stub setting during each test

  • After the test, the display informs the user of the duration of the test and the average rate of pressure increase

  • Internal Memory slots can hold all related test data for up to 100 pull tests

  • The unit can be interfaced with a computer to display all testing data held in memory and basic software is included

  • Audible feedback helps to verify when buttons are pressed or when a test is complete

  • Units can be displayed in Imperial or Metric

  • User-adjustable power saving feature

  • Firmware is easily updatable via the USB port

  • Unit can be powered by 9 volt battery or via the USB port

  • Simplified design requires fewer internal parts and reduces the frequency of maintenance / repair

  • Can use the same pistons, pull-stubs and supplies as previous P.A.T.T.I.®

  • The self-aligning P.A.T.T.I.® MICRO quantitatively measures the adhesion strength of numerous coatings, including: paints, polymers, ceramics, inks, films, adhesives, and thermal or arc-sprayed metals.

  • Laboratory or field use.

  • The test surface can be smooth, rough, porous, flat or curved (please contact us for application specific solutions). Custom-machined pull-stubs are available at any size, either flat or with a radius to match curved surfaces.

  • The PATTI® can also be used to test the strength of adhesives under non-room environmental conditions from 32-212 degrees Fahrenheit (0-100 degrees Celsius).

  • The P.A.T.T.I.® uses compressed inert gas (CO2 cartridges for portability or bottled/shop air) to apply a continuous tensile load to an aluminum pull-stub which is bonded to the test surface with an adhesive.

  • After the adhesive has cured, the operator attaches the selected piston. After ensuring that the correct piston and stub size are set on the P.A.T.T.I. the operator pushes and holds the "RUN" button. A continuous load is then applied to the pull-stub until failure occurs, or until a specified load is reached.


Maximum load is displayed on a 2 line, backlit alpha-numeric display. When the test is complete, the display informs the user of the maximum tensile strength obtained during the test, the piston used, the pull-stub size, the total time duration of the test, and the average rate of pressure increase. All of this data can be saved to one of the 100 memory slots for future retrieval via the control module or your computer.

Here are some sample display images from an actual test that was saved to memory:

All of the above information can be saved for each test and this makes it easy to verify that a test complies with the requirements of an adhesion testing standard. For instance, ASTM D4541 dictates that a test must be finished in less than 100 seconds and at a rate of less than 150 psi/sec.

The P.A.T.T.I.® features a patented piston design which assures uniaxial alignment with the pull-stub axis for "true tensile testing": 


There is a different piston for each load range shown in the table below. At least 100 psig supply pressure (up to 160 psig) is required for all piston sizes and all pistons are self-aligning. 

Piston Load Range
(PSI using 1/2" dia. pull-stubs)
Piston Diameter Price
F-1 50-500 1 3/4" (1.75") $399.00
F-2 100-1000 2 1/4" (2.25") $399.00
F-4 200-2000 2 7/8" (2.875") $399.00
F-8 400-4000 3 3/4" (3.75") $399.00

F-8/12 (F-20)

(3 Load Ranges)

F-8; 400-4000

F-12; 600-6000

F-20; 1000-10,000

5 3/4" (5.75") $449.00



The PATTI® instrument and method conforms to ASTM D-4541, "Pull-Off Strength of Coatings Using Portable Adhesion Testers". Using 20mm pull-stubs, the P.A.T.T.I. conforms to ISO 4624/16276-1.

Also can be used for the testing of coatings on concrete according to ACI 503-30 Appendix A, A.1 or ASTM D7234. 50mm pull-stubs required.

Asphalt testing can be performed using specialty stubs. Contact us for details.


  • Gas Supply: self-contained or external supply, 16gram unthreaded CO2 cartridges or ~125 psig bottled/shop air

  • Power: (1) 9V Alkaline battery (included) or via USB port

  • Weight: ~1.25 pounds

  • Dimensions: 4.5" (11.5cm) x 3.5" (8.9cm) x 1.5" (3.8cm) (Control Module)

  • Load Range: 1-10,000psi using 1/2" pull-stubs

  • Display: 2 line backlit alpha-numeric display

  • Operating Temperature Range: 50-120 degrees Fahrenheit

  • Certified calibration available at additional fee

  • Accessory for testing adhesives available

  • All pistons are self-aligning


Our P.A.T.T.I.® MICRO Complete Testing System includes: Digital Laboratory/Field control module, one single load range piston (state range desired), transport toolbox, accessory kit [40 San*o*dized pull-stubs, 40 adhesive masks, high and low pressure hoses, epoxy kit, talcum powder, 6  ⃰CO2 cartridges] and instruction manual.

Due to FAA regulations CO2 cartridges will only be shipped by Ground. Cartridges can generally be purchased at bike shops or sporting goods stores.

All P.A.T.T.I.® Units include a one year warranty.

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