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Self-Aligning
Unequal
pulling force during testing caused by uneven adhesive bond
lines and coating surfaces can result in random, unexplainable
readings. To obtain more repeatable and meaningful adhesion
measurements, it is imperative that the pulling force applied
to the test dolly is uniformly distributed over the surface
being tested.
The
Self-Aligning Dolly enables uniform distribution
of the pulling force over the surface being tested, preventing
a one-sided pull-off.
Unique
Test Dollies: The PosiTest Adhesion Tester uses inexpensive
single-use aluminum dollies designed according to internationally
accepted standards and practices. They have a full 20 or 50
mm surface diameter with no holes to clean or keep from filling
with adhesive.
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The
PosiTest Adhesion Tester compensates for
misalignment. The uniquely spherical articulating
dolly head is engaged into a ring of small ball
bearings, ensuring correct alignment. This feature
is found only on the PosiTest Adhesion Tester.
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