PDF Download

ASTM D3359-08 PDF

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 SUPERSEDED (see Active link, below).

Author: Mekasa Mikahn
Country: Republic of Macedonia
Language: English (Spanish)
Genre: Technology
Published (Last): 3 June 2012
Pages: 351
PDF File Size: 5.89 Mb
ePub File Size: 12.18 Mb
ISBN: 445-7-29549-976-3
Downloads: 15948
Price: Free* [*Free Regsitration Required]
Uploader: Moogudal

While this may be an agreement between purchaser and seller, the precision values given in 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.

Precision and Bias5 It is assumed that coating removal occurs when the tensile force generated along the latter interface, which is a function of the rheological properties of the backing and adhesive layer materials, is greater aatm the bond strength at the coating-substrate interface or cohesive strength of the coating.

It is of particular importance that the cutting edges be in good condition. Common methods which approach the direct tests are peel, lapshear, and tensile tests.

Remove an additional length at a steady that is, not jerked rate and cut a piece about 75 mm 3 in. Issues with plastic substrates are noted in Appendix X1. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

Several r3359-08 that contribute to these differences include coating composition and topology: The unique functional requirements of coatings on plastic substrates cause the usual tape tests to be unsatisfactory for measuring adhesion performance in practice.

Then dry or prepare the surface, or both, as agreed upon between the purchaser and d33599-08 seller. 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 Dand is insensitive to all but large differences in adhesion.

Major limitations of the tape test are its low sensitivity, applicability only to coatings of relatively low bond strengths, and non-determination of adhesion to the substrate where failure occurs within a single coat, as when testing primers alone, or aetm or between coats in multicoat systems. The values given in parentheses s3359-08 for information only.

Applied to metals, it is economical to perform, lends itself to job site application, and most importantly, after decades of use, people feel comfortable with it.

  EXPOSED TO YOU BETH KERY FREE PDF

It is not unexpected that different operators might obtain different results 7, 8. 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.

Although some rather brittle coatings may exhibit cohesive failure, the asmt test adhesion method does not make provision for giving failure locality 7, 8. Also, Test Method B is not considered suitable for films thicker than 5 mils ? But it can also be said that it is possible to obtain an indication of relative adhesion performance.

ASTM D – 17 Standard Test Methods for Rating Adhesion by Tape Test

If this is not possible the test method should be used only for ranking a series of test coatings. Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend.

They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required. Note 1This test method has been reported being used to measure adhesion of organic coatings on soft substrates for example, wood and plastic. It is the responsibility of the user of ast, standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. No further reproductions authorized.

ASTM D3359 Measuring Adhesion by Tape Test

But this, in fact, is not their purpose. Liberty University School of Education M. When making the incisions, use the straightedge and cut through the coating to the substrate in one steady motion. It is assumed that coating removal occurs when the tensile force generated along the latter interface, which is a function of the rheological properties of the backing and adhesive layer materials, is greater than the bond strength at the coating-substrate interface or cohesive strength of the coating.

Applied to metals, it is economical to perform, lends itself to job site application, and most importantly, after decades of use, people feel comfortable with it.

While this may be an agreement between purchaser and seller, the precision values given in The central issues are that the test on plastics lacks reproducibility and does not relate to the intended application.

Flaking and detachment worse than Grade 1. Criteria deemed essential for a test to warrant large-scale acceptance are: Justication for the cutting step is reasonable as cutting provides a free edge from which peeling can begin without having to overcome the cohesive strength of the coating layer.

  CALCULO DE UNA VARIABLE TRASCENDENTES TEMPRANAS DENNIS ZILL PDF

Flaking and detachment worse than Grade 1. Wish List Please contact us first before donating any of these items. Users of it should, therefore, check whether current material gives comparable results to previous supplied material. Originally approved in After drying or testing the coating, conduct the tape test at room temperature as defined in Specification D, unless D standard temperature is required or agreed. The intra- and inter-laboratory precision of this test method is similar to other widely-accepted tests for coated substrates for example, Test Method D and Test Method Dbut this is partly the result of it being insensitive to all but large differences in adhesion.

Also, Test Method B is not considered suitable for lms thicker than 5 mils m. Historical Version s – view previous versions of standard Translated Version s: A similar test method, ISOpermits tests on non-metallic substrates for example, wood and plaster. Check for atness with a straight edge such as that of the tempered steel rule The nal step in the test is visual assessment of the coating removed from the specimen, which is subjective in nature, so that the coatings can vary among individuals evaluating the same specimen 9.

ASTM D 3359 – 09 Standard Test Methods for Measuring Adhesion by Tape Test

If the adhesion strength of the tape has not been determined, report the specic tape used and its manufacturer. 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. Direct tests include the Hesiometer and the Adherometer 2. But it can also be said that it is possible to obtain an indication of axtm adhesion performance. Search book title Enter keywords for book title search.

Test Methods D was developed with metal aatm the substrate and, in the absense of supporting precision and bias data, is so limited.

NOTE 2—Subject to agreement between the purchaser and the seller, 3d359-08 Method B can be used for thicker films if wider spaced cuts are employed.