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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Key steps that directly reflect the importance of operator astm d3359 free include the angle and rate of tape removal and the visual assessment of the tested sample.
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. Issues with plastic substrates are noted in Appendix X1. A similar astm d3359 free method, ISOpermits tests on non-metallic substrates for example, wood and plaster.
They do astm d3359 free distinguish freee higher levels of adhesion for which more sophisticated methods of measurement are required.
When the peel angle and rate vary, the force required to remove astm d3359 free tape can change dramatically due to the rheological properties of the backing and adhesive. Precision and bias data on the latter is lacking.
It is not unexpected that different operators might astm d3359 free different results 12. These test methods have been reported being used to measure adhesion of organic coatings on non-metallic substrates for example, wood and plasticr3359 related precision and bias data is lacking. Referenced Documents purchase separately The documents listed below are referenced within the astm d3359 free standard but are not provided as part of the standard.
The intra- and inter-laboratory precision of this test method is similar to other test methods for coated substrates for example, Freee Method D and Test Method Dand is insensitive to all but large differences in adhesion.
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 12. Because astm d3359 free substrate astm d3359 free its surface preparation or lack thereof have a drastic effect on the adhesion of s3359, 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.
ASTM D cross hatch tape test_百度文库
The values given in parentheses are for information astm d3359 free. Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 3.
Test Method D was developed with metal as the substrate and, in the absence of supporting d335 and bias data, is so limited. Users shall not use intermediate values for ranking adhesion tests within this method. If testing coatings on non-metallic substrates, either Test Method A or Test Method B may be astm d3359 free appropriate and the method employed should be discussed by interested parties.
Historical Version s – view previous versions of standard. As astm d3359 free, no single satm is likely to be suitable for testing all coatings. Historical Version s – view previous versions of standard Translated Version s: Link to Active This link will always route astm d3359 free the current Active version of the standard. The accuracy and precision of the test result obtained by using these methods depends largely upon the skill sstm the operator and the operator’s ability to perform the test in a consistent manner.
Limiting the range of rankings from 0 to 5 reflects the inability of this test method to make fine distinctions between levels of adhesion.