22 Jul ASTM D cross hatch tape test – Designation: D – 02 Procedure Select an area free of blemishes and minor surface. ASTM D Standard Test Methods for Rating Adhesion by Tape Test. ASTM D Standard Test Methods for Measuring Adhesion by Tape Test. Significance and Use. If a coating is to fulfil its function of protecting or decorating a.
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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 dree value for bond strength was met or exceeded astm d3359 freeastm d3359 free. 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.
Test Method D was developed with metal as the substrate and, wstm the absence of supporting precision and bias data, is so limited. They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement astm d3359 free required.
These test methods have been reported being used astm d3359 free measure adhesion of organic coatings on non-metallic substrates for example, wood and plasticalthough related precision and bias data is lacking. A similar test method, ISOpermits atm on non-metallic substrates for example, wood and plaster.
Issues with plastic substrates are noted in Appendix X1. Link to Active This link will always route to the astm d3359 free Active version of the standard. It is not unexpected that different asfm might obtain different results 12. The accuracy and precision of the test result obtained by using these methods depends largely upon the skill of astm d3359 free operator and the operator’s ability to perform the test in a consistent manner.
ASTM D – 17 Standard Test Methods for Rating Adhesion by Tape Test
Precision and bias data on the latter is astm d3359 free. Referenced Documents purchase separately The documents listed below are referenced within astm d3359 free subject standard but are not provided as part of the standard.
The values given in parentheses are for information only. Limiting the range of rankings from 0 to 5 reflects the inability of this test method to make fine distinctions between levels of adhesion. Historical Version s – view previous versions of standard Translated Version s: Users shall not use intermediate values for ranking adhesion tests within this method. As such, no single tape is likely to be astm d3359 free for testing all coatings.
When the peel angle and rate vary, the force required to remove the tape can change dramatically due to the rheological properties astm d3359 free the backing c3359 adhesive. 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.
Historical Version s – view previous versions of standard. Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 3.
ASTM D cross hatch tape test_百度文库
Because the substrate and its surface preparation or lack astm d3359 free have a drastic effect on the adhesion of coatings, a astm d3359 free 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.
It is the astj of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. The intra- and inter-laboratory precision of this test method is similar to other test methods ashm coated substrates for example, Test Method D and Test Method Dand is insensitive to all but large differences in adhesion.