ASTM D1876 T PEEL TEST PDF

This test method is used to determine the relative peel resistance of adhesive bonds between flexible substrates utilizing a T-type specimen. The test specimen is loaded into a tensile tester with the bent, un-bonded ends clamped in the grips. The specimen is then pulled apart, and the peak and average peel forces are measured. Though no specific parameters or procedures for preparation are provided, it is important to follow all manufacturer instructions. Accordingly, it is essential that the adhesive manufacturer provides all relevant specifications for the application of the adhesive. These include surface preparation, mixing directions, application rate, and thickness and curing conditions.

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This test method is used to determine the relative peel resistance of adhesive bonds between flexible substrates utilizing a T-type specimen. The test specimen is loaded into a tensile tester with the bent, un-bonded ends clamped in the grips. The specimen is then pulled apart, and the peak and average peel forces are measured.

Though no specific parameters or procedures for preparation are provided, it is important to follow all manufacturer instructions. Accordingly, it is essential that the adhesive manufacturer provides all relevant specifications for the application of the adhesive.

These include surface preparation, mixing directions, application rate, and thickness and curing conditions. If one or more of these specifications is not provided, it is important to document the parameters used so that the test can be repeated or used for comparison.

Altering any of the sample preparation or test specifications can cause changes in the recorded properties. Because this method is generally used to compare the relative peel resistances of multiple adhesives, all specifications must be identical in order for the comparison to be valid.

Another important variable to consider is the backing material of the test panel. If the backing material is too weak or too inflexible, undesirable failure modes may be observed. The presence of multiple failure modes adds difficulty when comparing the results of one test to another.

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ASTM D1876 Adhesive Peel Strength Testing

Previous Next There are many test methods used to determine the strength of an adhesive including peel, shear, cleavage, and tension tests. Peel tests are common for tapes, labels, coatings, and other bonded materials. There are three main types of peel tests including 90 degree peel test, degree peel test, and a T-Peel test. The Loop Tack test is similar in concept but is better classified as a tension test. Why would you perform the T-Peel test instead of the 90 or degree test? Well, the 90 and degree tests are commonly used where a flexible material with an adhesive or other bonding method is adhered to a more rigid substrate. The T-Peel is used when both materials are either similar or both flexible.

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Peel Resistance of Adhesive (T-Peel Test) ASTM D1876

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How to Perform an Adhesive Strength T-Peel Test – ASTM D1876

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