ASTM D – Designation: D – 08 Standard Test Methods for Measuring Adhesion by Tape Test. Buy ASTM D TEST METHODS FOR MEASURING ADHESION BY TAPE TEST from SAI Global. ASTM D Historical Standard: ASTM D Standard Test Methods for Measuring Adhesion by Tape Test. SUPERSEDED (see Active link, below).
|Published (Last):||5 March 2017|
|PDF File Size:||6.85 Mb|
|ePub File Size:||4.7 Mb|
|Price:||Free* [*Free Regsitration Required]|
ASTM D – 17 Standard Test Methods for Rating Adhesion by Tape Test
NOTE 6—Coatings should be applied in accordance with Practice D, or as agreed upon between the purchaser and the seller. Cut through the film to the substrate in one steady motion using just sufficient pressure on the cutting tool to have the cutting edge reach the substrate. If the adhesion strength of the tape has not been determined, report the specic tape used and its manufacturer. While this may be an agreement between purchaser and seller, the precision values given in Further, the tape test does 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 7, 8.
Cohesive failure within the coating film is also frequently observed. Aztm cutting tools that develop nicks or other defects that tear the film. If this is not possible d3395-08 test method should be used only for ranking a series of test coatings.
ASTM D 3359 – 09 Standard Test Methods for Measuring Adhesion by Tape Test
Because the substrate and its surface preparation or lack of it 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 and treatment, is of considerable usefulness in the industry. Cohesive failure within the coating lm is also frequently observed.
Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating.
Apparatus and Materials There generally is difficulty, however, in relating these tests to basic adhesion phenomena. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Print 1 2 3 4 5 page sstarting from page current page. For lms thicker than 5 mils muse Test Method A. Flaking and detachment worse than Grade 1.
Users of alternative tapes should asfm whether the alternative tapes give comparable results to the Permacel P99 tape.
Liberty University School of Education M. Referenced Documents atsm separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. NOTE 3—It should be recognized that differences in adherability of the coating surface can affect the results obtained with coatings having the same inherent adhesion.
ASTM D Measuring Adhesion by Tape Test
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. Permission rights to photocopy the standard may also be secured from the ASTM website www. When making successive single cuts with the aid of a guide, place the guide on the uncut area. The central issues are that the test on plastics lacks reproducibility and does not relate to the intended application. NOTE 2—Subject to agreement between the purchaser and the seller, Test Method B can be used for thicker films if wider spaced cuts are employed.
Also, Test Method B is not considered suitable for films thicker than 5 mils ?
It is not asttm that different operators might obtain different results 7, 8. However, the precision values given in Summary of Test Methods 3.
It is the dd3359-08 of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required. NOTE 2—Subject to agreement between the purchaser and the seller, Test Method B can be used for thicker lms if wider spaced cuts are employed.
For large structures make sufficient tests to ensure that the adhesion evaluation is representative of the whole surface. Click here to download full list of books.
ASTM D3359 Measuring Adhesion by Tape Test
The manufacturer of this tape and the manufacturer of the tape used in adtm interlaboratory study see RR: Both concerns are well founded: The coating has flaked along the edges and on parts of the squares. Although some rather brittle coatings may exhibit cohesive failure, the tape test adhesion method does not make provision for giving failure locality 7, 8.
Further, the tape test does 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 7, 8. Active view current version of standard Translated Standard: After immersion, clean and wipe the surface with an appropriate solvent which will not harm the integrity of the coating.
If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
Remember me for one month. These tests do not strictly meet all the criteria listed, but an appealing aspect of these tests is that 9 The boldface numbers in parentheses refer to the list of references at the end of this test method. The values given in parentheses are for information only. When making the incisions, use the straightedge and cut through the coating to the substrate in one steady motion.
If the substrate has not been reached make another X in a different location. If the metal has not been reached make another grid in a different location.