Standard Active Last Updated: Apr 14, 2021 Track Document
ASTM D4338-97(2021)

Standard Test Method for Flexibility Determination of Supported Adhesive Films by Mandrel Bend

Standard Test Method for Flexibility Determination of Supported Adhesive Films by Mandrel Bend D4338-97R21 ASTM|D4338-97R21|en-US Standard Test Method for Flexibility Determination of Supported Adhesive Films by Mandrel Bend Standard new BOS Vol. 15.06 Committee D14
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Significance and Use

5.1 The mandrel bend test is simple and fast. It requires little investment in equipment and little operator training. The prime purpose is to determine whether a film of adhesive coated on a substrate meets flexibility requirements. The test is also useful for comparing flexibility of adhesives. It can be used to design adhesives by comparing the flexibility of various formulations to meet specific end-use parameters. The adhesive flexibility can be determined at temperatures other than ambient by conditioning the test apparatus and test specimen at the desired temperature and performing the test under those conditions.

FIG. 1 Test Mandrel (Various Diameters) for Test Frame

Test Mandrel (Various Diameters) for Test FrameTest Mandrel (Various Diameters) for Test Frame

Note 1: Figures in parentheses are approximate.

Scope

1.1 This test method covers the determination of the flexibility of an adhesive film bonded to a flexible substrate. The results are useful for comparing flexibility of adhesives and not for absolute characterization of adhesives.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for information purposes only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

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Details
Book of Standards Volume: 15.06
Developed by Subcommittee: D14.10
Pages: 4
DOI: 10.1520/D4338-97R21
ICS Code: 83.180