Peel Adhesion test 90°

ASTM B571, EN 28510, ISO 8510-1, EN 1939 Annex B, ASTM D2861, ASTM D3330, ASTM D6862 ASTM D6252

ASTM B571, EN 28510, ISO 8510-1, EN 1939 Annex B, ASTM D2861, ASTM D3330, ASTM D6862 ASTM D6252

Peel procedure to determine adhesive strength between sample materials to a rigid layer

A measured forced is applied to a test specimen in order to strip a layer from the specimen with tearing at the bonded surfaces. The significance value is the adhesion strength, that is the maximum force divided by the width of specimen. 

We recommend a 90° peel fixture that holds and moves the substrate as the rubber strip is peeled off by an upper grip. Pneumatic side-action grips provide appropriate solution due to ease of use, productivity and repeatability. The 90° peel fixture is able to keep this angle by using a low force sliding table that can be adjusted during test.

The fixture is constituted by a bearing mounted table connected with the test system by a cable and a pulley and fixed on the rear by a spring. While the crosshead is driven in the tensile direction, the cable pulls the table to maintain a constant 90° peel angle and the spring keeps the table from reacting to inertia caused by load peaks and troughs.   

Data acquisition is a key factor in obtaining accurate test results. Our Graphwork software calculates the adhesion value and allows the operator to register the observed failure type.

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