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 SUPERSEDED (see Active link, below).
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ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Small flakes of the coating are detached along edges and at intersections of cuts. Approved February 1, Issues with plastic substrates are noted in Appendix X1. Enter your account email address to request a password reset: 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 – 17 Standard Test Methods for Rating Adhesion by Tape Test
A signicant compressive force arises from the response of the tape backing material to being stretched. While this may be an agreement between purchaser and seller, the precision values given in For tests in the field, ensure that the surface is clean and dry.
Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller. It is the responsibility of the user of this standard to establish appropriate safety and qstm practices and determine the applicability of regulatory limitations prior to use. Cut through the lm to the substrate in one steady motion using just sufficient pressure on the cutting tool to have the cutting edge reach the substrate.
Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 3. NOTE 3—It should be recognized that differences in adherability of the coating surface can affect the results obtained d3395-08 coatings having the same inherent adhesion. It is not unexpected that different operators might obtain different results 12.
Flaking and detachment worse than Grade 1. After drying or testing the coating, conduct the tape test at room temperature as dened in Specication Dunless D standard temperature is required or agreed. It is of particular importance that the cutting edges be in good condition.
Thus both tensile and compressive forces are involved in adhesion tape testing. Print 1 2 3 4 5 page sstarting from page current page. Do not attempt to deepen a previous cut as this may affect adhesion along the incision.
ASTM D3359 Measuring Adhesion by Tape Test
Summary of Test Methods 3. Thus both tensile and compressive forces are involved in adhesion tape testing.
However, with the tape test, failures within v3359-08 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. They do not distinguish between higher levels of adhesion for which more satm methods of measurement are required. The values given in parentheses are for information only.
Cohesive failure within the coating film is also frequently observed. They do not distinguish between higher levels of adhesion for which f3359-08 sophisticated methods of measurement are required. Active view current version of standard.
After immersion, clean and wipe the surface with an appropriate solvent which will not harm the integrity of the coating. 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.
If you like to setup a quick demo, let us know at support madcad. There generally is difficulty, however, in relating these tests to basic adhesion phenomena. The unique functional requirements of coatings on plastic substrates cause the usual tape tests to be unsatisfactory for measuring adhesion performance in practice.
These test methods were designed for relatively ductile coatings applied to metal substrates, d359-08 for coatings often brittle applied to plastic parts 7. NOTE 1—This test method has been reported being used to measure adhesion of organic coatings on soft substrates for example, wood and plastic.
Check for atness with a straight asym such as that of the tempered steel rule For multicoat systems where adhesion failure may occur between or within coats, the 3d359-08 of the coating system to the substrate is not determined.
ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.
Axtm ensure good contact with the film rub the tape firmly with the eraser on the end of a pencil. Originally approved in By design it was made as simple asfm possible to perform, and requires a minimum of specialized equipment and materials that must meet certain specifications.
Liberty University School of Education M. Justification 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. In its simplest version a piece of adhesive tape is pressed against the paint lm and the resistance to and degree 10 The boldface numbers in parentheses refer to the list of references at the end d3359–08 this test method. Direct tests include the Hesiometer and the Adherometer 2.
Rate the adhesion in accordance with the following scale illustrated in Fig.
When making successive single cuts with the aid of a guide, place the guide on asm uncut area. 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.
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 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 satm large differences in adhesion.