Portable Calibration Unit
Calibration
unit designed for calibrating and checking the accuracy of the PAT
adhesion testers. (With adaptors other makes of pull-off
testers can also be checked).
| Technical Data | |
| Calibration Range: | 0-17MPa on 3.14cm² area (5.3kN) |
| Accuracy: | Within 1% if full scale |
| Instrument weight: | 2.4 kg |
ASTM-C633 jig
Two cylinders with Ø25mm/one inch diameter, one of which
is coated with the sample coating, are glued together end-to-end and then
pulled apart in order to measure the pull stress (measured in
Newton/mm2 or psi) required to fracture the coating.
The ASTM-C633 tensile testing jig is used with the PAT range of
pull-off testers to perform pull testing in accordance with
ASTM-C633.
(Study File 4)
Download a pdf-format Leaflet! (173kB)
Glue Curing jig
Failure to glue the cylinders together absolutely concentrically will result in imbalance in the stress distribution over the tested interface between the two test cylinders with a resulting lower fracture value.
Jig for heat-curing (in an oven) assembly of pairs of test cylinders glued together.
This jig will not only ensure a 100% concentric joint but also ensure that the glue is evenly spread between the test cylinders.
Shear Testing Jig
Jig for testing a coating in shear mode, i.e. pulling the test
element sideways parallel to the substrate until fracture occurs.
DFD Shear Test Principle IllustrationA support jig (J) is places over the edge of the test panel (B) to form the foundation for the tensile testing head (H). The pull force is transferred trough a solid angle adaptor (A) to remain perfectly parallel to, and in line with the test panel's surface (S). The test element (D) is securely fastened to the adaptor to prevent misalignment during pull force increase. |