Peel resistance of adhesive bonds using ASTM D1781
This test method is used to compare adhesion between flexible and rigid adherends, or between flexible facing of a sandwich structure and its core. Comparisons of adhesives and processes are only applicable when test specimens and conditions are the same. The peel resistance may indicate degree of cure for relatively brittle adhesives.
Specimens are placed in the climbing drum peel apparatus. The grips of a Universal Test Machine are initiated at a specified grip separation significant enough to roll the drum upward. The standard speed is 25.40 ± 2.54 mm/min [1.00 ± 0.10 in/min].
Six specimens tested. Samples need to be thick enough not to bend during test.
From climbing drum peel results the following calculations can be made:
**Please note that this test description is intentionally generic in nature and aimed at providing a descriptive summary to enhance test understanding. Standards can be obtained from appropriate standard authorities.
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