Designation: D – 02 Standard Test Methods for Measuring Adhesion by Tape Test1 This standard is issued under the?xed designation D. ASTM D Uploaded by. Leonardo Gonçalves. Loading Preview. Sorry, preview is currently unavailable. You can download the paper by clicking the. ASTM D Pull Off Test Standard. Uploaded by. vlong ASTM D MEK Test (Zinc Test). Uploaded by. vlong ASTM D Eng Cross-cut.
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If the substrate has not been reached make another X in a different location. Key steps that directly re? Dhave advised this subcommittee that the properties of these tapes were changed. Smooth the tape into place by? But it can also be said that it is possible to obtain an indication of relative adhesion performance. It is reasonable to state that at the present time no test exists that can precisely assess the actual physical strength of an adhesive bond.
Because of the variability in adhesion strength from batch-to-batch and with time, it is essential that tape from the same batch be used when tests are to be run in different laboratories. Users of it should, therefore, check whether current material gives comparable results to previous supplied material.
ASTM D – 02 Standard Test Methods for Measuring Adhesion by Tape Test
What are the hazards of powder coatings? For coatings on soft substrates, issues include how deep should this cut penetrate, and is it possible to cut only to the interface?
Apparatus and Materials Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. For large structures make sufficient tests to ensure that the adhesion evaluation is representative of the whole surface.
Discard cutting tools that develop nicks or other defects that tear the? Some commercial tapes are manufactured to meet minimum standards. Originally published as D — If the adhesion strength of the tape has not been determined, report the speci? The color under the transparent tape is a useful indication of when good contact has been made. Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating. But this, in fact, is not their purpose.
A given lot may surpass these standards and thus be suitable for general market distribution; however, such a lot may be a source of serious and unexpected error in assessing adhesion. A superscript epsilon e indicates an editorial change since the last revision or reapproval.
Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 9. Do not attempt to deepen a previous cut as this may affect adhesion along the incision.
Precision and Bias 9. Direct tests include the Hesiometer and the Adherometer 2. The color under the transparent tape is a useful indication of when good contact has c made. The values given in parentheses are for information only.
Last previous edition D — If this is not possible the test method should be used only for ranking a series of test coatings. These effects are related as they re?
Precision and Bias 8 9. NOTE 5—If desired or speci? Thus both tensile and compressive forces are involved in adhesion tape testing. The central issues are that the test on plastics lacks reproducibility and does not relate to the intended application. Both test methods are used to establish whether the adhesion of a coating to a substrate is at an adequate level; however they do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required.
Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller. The limited scale of 0 to 5 was selected deliberately to avoid a false impression of being sensitive.
They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required. D5 Creation Powered by: Cohesive failure within the coating? The manufacturer of this tape and the manufacturer of the tape used in the interlaboratory study see RR: 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.
Flaking and detachment worse than Grade 1.
Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02
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 Satm Method Dbut this is partly the result of it being insensitive to all but large differences in adhesion. Asgm comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend. This standard has been approved for use by agencies of the Department of Defense. If the substrate has not been reached make another X in a different location.