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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Key steps that directly re? One supplier that has assisted in the re?
Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02
Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating. Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating.
The conditions and time of exposure will be governed by ultimate coating use or shall be agreed upon between the purchaser and seller. For coatings on adtm substrates, issues include how deep should this cut penetrate, and is it possible to cut only to the interface?
Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.
For 3395-02 systems where adhesion failure may occur between or within coats, the adhesion of the coating system to the substrate is not determined. Rate the adhesion in accordance with the following scale illustrated in Fig.
When making the incisions, use the straightedge and cut through the coating to the substrate in one steady motion. For tests in the field, ensure that the surface is clean and dry. Atm standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
Procedure for A-X-CUT TAPE TEST METHOD-ASTM D
What are the hazards of powder coatings? If this is not possible the test method should be used only for ranking a series of test coatings. ASTM International takes no position atm the validity of any patent rights asserted in connection with any item mentioned in this standard.
Users of this standard are expressly 3359–02 that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. Criteria deemed essential for a test to warrant large-scale acceptance are: Remove an additional length at ashm steady that is, not jerked rate and cut a piece about 75 mm 3 in. When making the incisions, use the straightedge and cut through the coating to the substrate in one steady motion.
If the adhesion strength of the tape has not been determined, report the speci? The values given in parentheses are for information only. Current edition approved Aug. To ensure good contact with the? But this, in fact, is not their purpose.
astm d – 02 standard test methods for_百度文库
Your comments will receive careful consideration at a meeting of the responsible technical committee,1 which you may attend. For large structures make sufficient tests to ensure that the adhesion evaluation is representative of the whole surface. More importantly, in this instance the test is being applied beyond its intended scope. The unique functional requirements of coatings on plastic substrates cause r usual tape tests 3539-02 be unsatisfactory for measuring adhesion performance in practice.
The central issues are that the test on plastics lacks reproducibility and does not relate to the intended application.
Differences in tapes used can lead to different results as small changes in backing stiffness and adhesive rheology cause large changes in the tension area.
Precision x Bias 8 9. Thus both tensile and compressive forces are involved in adhesion tape testing. Also, because tapes change on storage, bond strengths of the tape may change over time 7, 8.
Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. These effects are related as they re? If the adhesion strength of the tape has not been determined, report the specific tape used and its manufacturer.
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.
Remove an additional length at a steady that is, not jerked rate and cut a piece about ast mm 3 in. Adhesion is then rated by comparing? NOTE 4—Coatings should be applied in accordance with Practice Dor as agreed upon between the purchaser r the seller.
In actuality, however, this force is distributed over a discrete distance O-A in Fig. In its simplest version a piece of atm tape is pressed against the paint? Also, Test Method B is not considered suitable for?
It is of particular importance that the cutting edges be in good condition. The color under the tape is a useful indication of when good contact has been made. Cohesive failure within the coating? 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.