DeFelsko PosiTest AT Series Adhesion Testers
The DeFelsko PosiTest AT Series measures the pull-off adhesion strength of coatings on metal, wood, concrete, and other rigid substrates. Available in manual and automatic models, it uses a hydraulic system with NIST-traceable load cell accuracy of ±1%. Both models support multiple dolly sizes, store test data including pull-off pressure and rate, and connect via USB for data transfer using PosiSoft software.
This instrument complies with ASTM C1583, the standard for evaluating tensile strength of concrete surfaces and bond strength of overlays using the pull-off method.
| 20 mm Kit | 50 mm Kit | 50 x 50 mm Tile Kit | 50 mm C1583 Kit | |
| Manual Models (with protective case) | 0.7 – 20 MPa 100 – 3000 psi | 0.4 – 3.3 MPa 50 – 480 psi |
0.4 – 2.585 MPa 50 – 375 psi |
0.4 – 3.3 MPa 50 – 480 psi |
| Automatic Models (with protective case) | 0.7 – 24 MPa 100 – 3500 psi 220 – 7550 N |
0.1 – 3.8 MPa 16 – 560 psi 220 – 7550 N |
0.1 – 3.0 MPa 13 – 440 psi 220 – 7550 N |
0.1 – 3.8 MPa 16 – 560 psi 220 – 7550 N |
| Conversion Kit Only | AT20KIT | AT50KIT | AT50TKIT | AT50CKIT |
| Typical Application | Higher bond strength coatings on metals | Lower bond strength coatings on wood, concrete and plastic | Cementitious adhesive for tiles | Concrete surfaces and overlay |
| Included Dollies | Ø20 mm (qty 20) aluminum | Ø50 mm (qty 8) aluminum | 50 x 50 mm Plate (qty 4) with threaded post steel | Ø50 mm (qty 4) with > 25 mm thickness steel |
| Cutting Tool | 20 mm hole saw | 50 mm hole saw | N/A | 50 mm diamond grit hole saw with arbor |
| Adhesive | ResinLab EP11HT 2-Part Epoxy | |||
| Resolution | 0.01 MPa (1 psi) | |||
| Accuracy | +/- 1% Full Scale | |||
- Portable — requires no external power source - ideal for field or lab use
- Environmentally sealed enclosure – weatherproof, dustproof and shockproof — meets or exceeds IP65
- Calibrated and certified to +1% accuracy using a NIST traceable load cell
- High-grade, industrial pressure sensor ensures continued accuracy
- Internal memory stores maximum pull-off pressure, rate of pull, test duration and dolly size
- LCD displays pressure value in PSI, MPa and Newtons
- Sealed USB port for fast, simple connection to a PC
- ASTM C1583
SKU: DEFE-POSITEST-AT-SERIES
