ASTM D3359-09 PDF
ASTM D assesses the adhesion of film coatings to metallic substrates by applying and removing pressure-sensitive tape over cuts made in the film. Documents Similar To ASTM D Eng Cross-cut. ISO Uploaded by. Quang Duan Nguyen · ISO Uploaded by. Anonymous n4bJbeLAq. This product is ASTM D compliant. Proven to be a very close equivalent to the Permacel P99 tape which was withdrawn from production by the.
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Precision and bias data on the later is lacking.
Adhesive ASTM D3359 Cross Hatch Adhesion Test Tape | Elcometer 99
They do not distinguish between higher levels of adhesion x3359-09 which more sophisticated methods of measurement are required. Precision and Bias 6 dry or prepare the surface, or both, as agreed upon between the 9. Then widely-accepted tests for coated substrates for example, Test dry or prepare the surface, or both, as agreed upon between the Method D and Test Method Dbut this is partly the purchaser and the seller.
Direct tests include the Hesiometer and the Adherometer 2. As such, no single tape is likely to be suitable for testing all coatings. 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.
Users of it should, therefore, check whether current material gives comparable results to previous supplied material. Test Methods D was developed with metal as the substrate and, in the absence of supporting precision and bias data, is so limited. When making the incisions, use the straightedge and cut through the coating to the substrate in one steady motion. But it can also be said that it is possible to obtain an indication of relative adhesion performance.
ASTM D – 09 Standard Test Methods for Measuring Adhesion by Tape Test [PDF] – Все для студента
Precision and bias data on the latter is lacking. It is the responsibility of the user of this standard to establish atm safety and health practices and determine the applicability of regulatory limitations prior to use. Remove an additional length at a steady that is, not jerked rate and cut a piece about 75 mm 3 in.
NOTE 5—Coatings should be applied in accordance with Practice Dor as agreed upon between the purchaser and the seller. Also, Test Method B is not considered suitable for lms thicker than 5 mils m.
Thus both tensile and compressive forces are involved in adhesion astk testing. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. More importantly, in this instance the test is being applied beyond its intended scope.
If the substrate has not been reached make another 5. Because the substrate and its surface preparation between the purchaser and seller. Adtm number in d335-09 indicates d3359-90 year of last reapproval. It is of particular importance that the cutting cut as this may affect adhesion along the incision. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
As Mittal 1 10 has pointed out, the answer is both yes and no. Because the substrate and its surface preparation or lack thereof have a drastic effect on the adhesion of coatings, a method to evaluate adhesion of a coating to different substrates or ashm treatments, or of different coatings to the same substrate, is of considerable usefulness in the industry.
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. After sion conditions and method of sample preparation. Key steps that directly reect the importance of operator skill include the angle and rate of tape removal and the visual assessment of the tested sample.
A superscript epsilon e indicates an editorial change since the last revision or reapproval. However, the precision values given in When making successive single cuts with 9.
If the metal has not been reached make another grid in a different location. The limited scale of 0 to 5 was selected deliberately long that intersect near their middle with a smaller angle of to avoid a false impression of being sensitive. To ensure good contact with the lm rub the tape rmly with the eraser on the end of a pencil. Note 1—This test method has been reported being used to measure adhesion of organic coatings on soft substrates for example, wood and plastic. When the peel angle and rate vary, the force required to remove the tape can change dramatically due to the rheological properties of the backing and adhesive.
NOTE 1—This test method has been reported being used to measure adhesion of organic coatings on soft substrates for example, wood and plastic. They do not distinguish between higher levels of adhesion for which more sophisticated methods of measurement are required. The color under the transparent tape is a useful coatings.
Apparatus and Materials 5. After immersion, clean and wipe the surface with an appropriate solvent which will not harm the integrity of the coating. Test Methods D was developed with metal as the substrate and, in the absense of supporting precision and bias data, is so limited. However, with the tape test, failures within the substrate or coating layers are rare because the tape adhesive is not usually strong enough to exceed the cohesive strengths of normal substrates and organic coatings.
A similar test method, ISOpermits tests on non-metallic substrates for example, wood and plaster. Link to Active This link will always route to the current Active version of the standard. While this may be an agreement between purchaser and seller, the precision values given in Smooth the tape into place by nger in the area of the incisions and then rub rmly with the eraser on the end of a pencil. The values given in parentheses are for information only.
For large structures make sufficient tests to ensure that the adhesion evaluation is representative of the whole surface.
This adtm has been approved for use by agencies of the Department of Defense. If the metal has not been It should be noted, however, that multitip cutters8 provide good results only on test areas sufficiently plane that all cutting edges contact the substrate to the same degree. Approved November 1, The accuracy and precision of the test result obtained by using these methods depends largely upon the skill of the operator and the operator’s ability to perform the test in a consistent manner.