ASTM D1781 Adhesive Climbing Drum Peel Test Machine

ASTM-D1781 – Standard Test Method for Climbing Drum Peel for Adhesives

ASTM D1781 determines the peel resistance of adhesive bonds between two materials with different physical properties. For example it measures the peel resistance between:

• a relatively flexible adherend and a rigid adherend

• a relatively flexible facing of a sandwich structure and its core

In each case the surface adherend is relatively flexible and the backing material is very rigid. In order to peel the flexible material from the rigid backing material and accurately measure the peel strength, a special device called a climbing drum peel fixture (shown) is used.

The peel fixture ensures that only “peeling” forces are applied to the flexible adherend/rigid adherend interface thus ensuring accurate measurement of peel resistance.