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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For large structures make sufficient tests to ensure that the adhesion evaluation is representative of the whole surface. The color under the transparent tape is a useful indication of when good contact has been made. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. For example, when the peel removal force of the tape from the coating used earlier by Task Group D Precision and Bias 9.

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller. Then dry or prepare the surface, or both, as agreed upon between the purchaser and the seller.

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. NOTE 2—It should be recognized that differences in adherability of the coating surface can affect the results obtained with coatings having the same inherent ast.

Procedure for X-CUT TAPE TEST METHOD-ASTM D3359-02

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. Adhesion is then rated by comparing?

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As Mittal 1 12 has pointed out, the answer is both yes and no. Direct tests include the Hesiometer and the Adherometer 2. Do not attempt to deepen a previous cut as this may 335902 adhesion along the incision.

For large structures make sufficient tests to ensure that the adhesion evaluation is representative of the whole surface. It is assumed that coating removal occurs when the tensile force generated along the latter interface, which is a function of the f 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.

Variation in pull rate and peel angle can effect large differences in test values and must be minimized to assure reproducibility 9. A superscript epsilon e indicates an editorial change since the last revision or reapproval.

NOTE 5—If desired or speci? There generally is difficulty, however, in relating these tests to basic adhesion phenomena. Flaking and detachment worse than Grade 1. 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.

One supplier that has assisted in the re? When making the incisions, use the straightedge and cut through the coating to the substrate in one steady motion. 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.

Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard.

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For tests in the field, ensure that the surface is clean and dry. Remove an additional length at a steady that is, not jerked rate and cut a piece about 75 mm 3 in. If the peel angle and rate vary, the force required to remove the tape can change dramatically. NOTE 4—Coatings should be applied in accordance with Practice Dor as agreed upon between the purchaser and the seller.

ASTM D | Leonardo Gonçalves –

But it can also be said that it is possible to obtain an indication of relative adhesion performance. Extremes in temperature or relative humidity may affect the adhesion of the tape or the coating.

Some commercial tapes are manufactured to meet minimum standards. Because the substrate and sstm 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 2 3 1.

For multicoat systems where adhesion failure may occur between or within coats, the adhesion of the coating system to the substrate is not determined. More importantly, in this instance the test is being applied beyond its intended 3359–02. For coatings on soft substrates, issues include how deep should this cut penetrate, and is it possible to cut only to the interface?

If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. Also, because tapes change on storage, bond strengths of the tape may change over time 7, 8.