ASTM D3359-09 PDF

Note 1—This test method has been reported being used to measure adhesion of organic coatings on soft substrates for example, wood and plastic. Issues with plastic substrates are noted in Appendix X1. A similar test method, ISO , permits tests on soft substrates for example, wood and plaster. Precision and bias data on the later is lacking. Test Methods D was developed with metal as the substrate and, in the absence of supporting precision and bias data, is so limited.

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More D Because the substrate and its surface preparation or lack thereof have a drastic effect on the adhesion of coatings, a method to evaluate adhesion of a coating to different substrates or surface treatments, or of different coatings to the same substrate, is of considerable usefulness in the industry. The intra- and inter-laboratory precision of this test method is similar to other test methods for coated substrates for example, Test Method D and Test Method D , and is insensitive to all but large differences in adhesion.

Limiting the range of rankings from 0 to 5 reflects the inability of this test method to make fine distinctions between levels of adhesion. Users shall not use intermediate values for ranking adhesion tests within this method. As such, no single tape is likely to be suitable for testing all coatings. Furthermore, these test methods do not give an absolute value for the force required for bond rupture, but serves only as an indicator that some minimum value for bond strength was met or exceeded 1, 2.

Key steps that directly reflect the importance of operator skill include the angle and rate of tape removal and the visual assessment of the tested sample. It is not unexpected that different operators might obtain different results 1, 2.

When the peel angle and rate vary, the force required to remove the tape can change dramatically due to the rheological properties of the backing and adhesive. Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 3.

If testing coatings on non-metallic substrates, either Test Method A or Test Method B may be more appropriate and the method employed should be discussed by interested parties. Issues with plastic substrates are noted in Appendix X1.

A similar test method, ISO , permits tests on non-metallic substrates for example, wood and plaster. Precision and bias data on the latter is lacking. Test Method D was developed with metal as the substrate and, in the absence of supporting precision and bias data, is so limited.

Scope 1. They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required. The values given in parentheses are for information only. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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ASTM D3359

A number in parentheses indicates the year of last reapproval. The values given in parentheses are for information adhesion of coating films to metallic substrates by applying and only. It is the responsibility adhesion of organic coatings on soft substrates for example, wood and plastic. Issues with plastic substrates are noted in Appendix X1. A similar of the user of this standard to establish appropriate safety and test method, ISO , permits tests on soft substrates for example, wood health practices and determine the applicability of regulatory and plaster. Precision and bias data on the later is lacking. Test Methods limitations prior to use.

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More D Because the substrate and its surface preparation or lack thereof have a drastic effect on the adhesion of coatings, a method to evaluate adhesion of a coating to different substrates or surface treatments, or of different coatings to the same substrate, is of considerable usefulness in the industry. The intra- and inter-laboratory precision of this test method is similar to other test methods for coated substrates for example, Test Method D and Test Method D , and is insensitive to all but large differences in adhesion. Limiting the range of rankings from 0 to 5 reflects the inability of this test method to make fine distinctions between levels of adhesion. Users shall not use intermediate values for ranking adhesion tests within this method. As such, no single tape is likely to be suitable for testing all coatings.

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More D Scope 1. Note 1—This test method has been reported being used to measure adhesion of organic coatings on soft substrates for example, wood and plastic. Issues with plastic substrates are noted in Appendix X1.

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